./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 436f0a1b9da8affd8e76edc25dee0cffff5a08ff489ec96067821d6a4548518b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:57:08,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:57:09,046 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 01:57:09,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:57:09,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:57:09,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:57:09,078 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:57:09,079 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:57:09,080 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:57:09,080 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:57:09,081 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:57:09,081 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:57:09,082 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:57:09,082 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:57:09,083 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:57:09,083 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:57:09,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:57:09,084 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:57:09,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:57:09,085 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:57:09,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:57:09,086 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:57:09,087 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:57:09,087 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:57:09,088 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 01:57:09,088 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:57:09,089 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:57:09,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:57:09,089 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:57:09,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:57:09,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:57:09,091 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:57:09,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:57:09,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:57:09,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:57:09,092 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:57:09,093 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:57:09,093 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:57:09,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:57:09,093 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:57:09,094 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:57:09,094 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:57:09,094 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:57:09,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:57:09,095 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 436f0a1b9da8affd8e76edc25dee0cffff5a08ff489ec96067821d6a4548518b [2023-11-29 01:57:09,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:57:09,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:57:09,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:57:09,362 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:57:09,362 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:57:09,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound50.c [2023-11-29 01:57:12,173 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:57:12,358 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:57:12,358 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound50.c [2023-11-29 01:57:12,366 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/data/9cb905fed/cad3c87f1ac145c8a231dae228c0dbe5/FLAGa0d881526 [2023-11-29 01:57:12,379 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/data/9cb905fed/cad3c87f1ac145c8a231dae228c0dbe5 [2023-11-29 01:57:12,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:57:12,383 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:57:12,385 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:57:12,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:57:12,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:57:12,390 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:57:12" (1/1) ... [2023-11-29 01:57:12,392 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22ab1bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:12, skipping insertion in model container [2023-11-29 01:57:12,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:57:12" (1/1) ... [2023-11-29 01:57:12,417 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:57:12,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:57:12,589 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:57:12,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:57:12,632 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:57:12,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:12 WrapperNode [2023-11-29 01:57:12,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:57:12,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:57:12,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:57:12,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:57:12,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:12" (1/1) ... [2023-11-29 01:57:12,648 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:12" (1/1) ... [2023-11-29 01:57:12,680 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 156 [2023-11-29 01:57:12,680 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:57:12,681 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:57:12,681 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:57:12,681 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:57:12,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:12" (1/1) ... [2023-11-29 01:57:12,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:12" (1/1) ... [2023-11-29 01:57:12,695 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:12" (1/1) ... [2023-11-29 01:57:12,709 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 01:57:12,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:12" (1/1) ... [2023-11-29 01:57:12,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:12" (1/1) ... [2023-11-29 01:57:12,715 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:12" (1/1) ... [2023-11-29 01:57:12,719 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:12" (1/1) ... [2023-11-29 01:57:12,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:12" (1/1) ... [2023-11-29 01:57:12,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:12" (1/1) ... [2023-11-29 01:57:12,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:57:12,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:57:12,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:57:12,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:57:12,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:12" (1/1) ... [2023-11-29 01:57:12,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:57:12,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:12,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:57:12,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:57:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:57:12,793 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 01:57:12,794 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 01:57:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:57:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:57:12,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:57:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 01:57:12,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 01:57:12,864 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:57:12,867 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:57:13,240 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:57:13,263 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:57:13,264 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-29 01:57:13,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:57:13 BoogieIcfgContainer [2023-11-29 01:57:13,264 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:57:13,268 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:57:13,268 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:57:13,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:57:13,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:57:12" (1/3) ... [2023-11-29 01:57:13,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d83a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:57:13, skipping insertion in model container [2023-11-29 01:57:13,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:57:12" (2/3) ... [2023-11-29 01:57:13,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d83a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:57:13, skipping insertion in model container [2023-11-29 01:57:13,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:57:13" (3/3) ... [2023-11-29 01:57:13,275 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd3-ll_unwindbound50.c [2023-11-29 01:57:13,292 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:57:13,292 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2023-11-29 01:57:13,334 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:57:13,339 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5f687054, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:57:13,340 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-11-29 01:57:13,343 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 75 states have (on average 1.8933333333333333) internal successors, (142), 131 states have internal predecessors, (142), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 01:57:13,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 01:57:13,351 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:13,352 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:13,352 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:13,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:13,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1950571926, now seen corresponding path program 1 times [2023-11-29 01:57:13,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:13,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341739120] [2023-11-29 01:57:13,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:13,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:13,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:13,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341739120] [2023-11-29 01:57:13,480 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:57:13,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332370382] [2023-11-29 01:57:13,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:13,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:13,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:13,483 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:13,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:57:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:13,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 01:57:13,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:13,596 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 01:57:13,596 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:13,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332370382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:13,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:13,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:57:13,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767575188] [2023-11-29 01:57:13,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:13,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:57:13,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:13,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:57:13,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:57:13,638 INFO L87 Difference]: Start difference. First operand has 141 states, 75 states have (on average 1.8933333333333333) internal successors, (142), 131 states have internal predecessors, (142), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:57:13,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:13,679 INFO L93 Difference]: Finished difference Result 280 states and 316 transitions. [2023-11-29 01:57:13,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:57:13,681 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2023-11-29 01:57:13,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:13,689 INFO L225 Difference]: With dead ends: 280 [2023-11-29 01:57:13,690 INFO L226 Difference]: Without dead ends: 138 [2023-11-29 01:57:13,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:57:13,697 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:13,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:57:13,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-29 01:57:13,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-11-29 01:57:13,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 74 states have (on average 1.8243243243243243) internal successors, (135), 129 states have internal predecessors, (135), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 01:57:13,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 147 transitions. [2023-11-29 01:57:13,743 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 147 transitions. Word has length 14 [2023-11-29 01:57:13,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:13,744 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 147 transitions. [2023-11-29 01:57:13,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:57:13,745 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 147 transitions. [2023-11-29 01:57:13,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 01:57:13,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:13,746 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:13,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:57:13,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 01:57:13,949 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:13,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:13,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1192253431, now seen corresponding path program 1 times [2023-11-29 01:57:13,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:13,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498492487] [2023-11-29 01:57:13,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:13,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:14,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:57:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:14,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 01:57:14,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:14,088 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:14,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:14,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498492487] [2023-11-29 01:57:14,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498492487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:14,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:14,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:57:14,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662508859] [2023-11-29 01:57:14,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:14,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:57:14,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:14,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:57:14,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:57:14,091 INFO L87 Difference]: Start difference. First operand 138 states and 147 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:14,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:14,156 INFO L93 Difference]: Finished difference Result 172 states and 181 transitions. [2023-11-29 01:57:14,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:57:14,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-29 01:57:14,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:14,159 INFO L225 Difference]: With dead ends: 172 [2023-11-29 01:57:14,159 INFO L226 Difference]: Without dead ends: 142 [2023-11-29 01:57:14,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:57:14,161 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 9 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:14,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 412 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:57:14,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-29 01:57:14,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-11-29 01:57:14,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 78 states have (on average 1.7820512820512822) internal successors, (139), 133 states have internal predecessors, (139), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 01:57:14,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 151 transitions. [2023-11-29 01:57:14,176 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 151 transitions. Word has length 14 [2023-11-29 01:57:14,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:14,178 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 151 transitions. [2023-11-29 01:57:14,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:14,178 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 151 transitions. [2023-11-29 01:57:14,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 01:57:14,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:14,179 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:14,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:57:14,180 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:14,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:14,180 INFO L85 PathProgramCache]: Analyzing trace with hash -378586418, now seen corresponding path program 1 times [2023-11-29 01:57:14,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:14,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038564703] [2023-11-29 01:57:14,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:14,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:14,195 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:14,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [410877963] [2023-11-29 01:57:14,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:14,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:14,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:14,197 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:14,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:57:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:14,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:57:14,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:57:14,314 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:14,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:14,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038564703] [2023-11-29 01:57:14,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:14,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410877963] [2023-11-29 01:57:14,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410877963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:14,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:14,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:57:14,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166234180] [2023-11-29 01:57:14,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:14,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:57:14,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:14,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:57:14,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:57:14,318 INFO L87 Difference]: Start difference. First operand 142 states and 151 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:14,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:14,555 INFO L93 Difference]: Finished difference Result 246 states and 263 transitions. [2023-11-29 01:57:14,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:57:14,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-29 01:57:14,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:14,558 INFO L225 Difference]: With dead ends: 246 [2023-11-29 01:57:14,558 INFO L226 Difference]: Without dead ends: 218 [2023-11-29 01:57:14,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:57:14,560 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 285 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:14,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 382 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:57:14,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-11-29 01:57:14,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 143. [2023-11-29 01:57:14,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 79 states have (on average 1.7721518987341771) internal successors, (140), 134 states have internal predecessors, (140), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 01:57:14,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 152 transitions. [2023-11-29 01:57:14,576 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 152 transitions. Word has length 18 [2023-11-29 01:57:14,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:14,576 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 152 transitions. [2023-11-29 01:57:14,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:14,577 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 152 transitions. [2023-11-29 01:57:14,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-29 01:57:14,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:14,577 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:14,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:57:14,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:14,780 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:14,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:14,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1148721162, now seen corresponding path program 1 times [2023-11-29 01:57:14,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:14,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373777179] [2023-11-29 01:57:14,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:14,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:14,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:57:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:14,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 01:57:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:14,909 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:14,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:14,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373777179] [2023-11-29 01:57:14,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373777179] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:14,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:14,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:57:14,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974417384] [2023-11-29 01:57:14,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:14,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:57:14,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:14,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:57:14,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:57:14,912 INFO L87 Difference]: Start difference. First operand 143 states and 152 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:14,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:14,999 INFO L93 Difference]: Finished difference Result 177 states and 188 transitions. [2023-11-29 01:57:14,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:57:15,000 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-29 01:57:15,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:15,001 INFO L225 Difference]: With dead ends: 177 [2023-11-29 01:57:15,001 INFO L226 Difference]: Without dead ends: 176 [2023-11-29 01:57:15,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:57:15,003 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 42 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:15,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 690 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:15,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-11-29 01:57:15,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 145. [2023-11-29 01:57:15,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 81 states have (on average 1.7530864197530864) internal successors, (142), 136 states have internal predecessors, (142), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 01:57:15,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 154 transitions. [2023-11-29 01:57:15,018 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 154 transitions. Word has length 19 [2023-11-29 01:57:15,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:15,018 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 154 transitions. [2023-11-29 01:57:15,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:15,019 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 154 transitions. [2023-11-29 01:57:15,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 01:57:15,020 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:15,020 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:15,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:57:15,020 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:15,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:15,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1250617717, now seen corresponding path program 1 times [2023-11-29 01:57:15,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:15,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856096374] [2023-11-29 01:57:15,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:15,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:15,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:57:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:15,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 01:57:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:15,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:15,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:15,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856096374] [2023-11-29 01:57:15,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856096374] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:15,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:15,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:57:15,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211725055] [2023-11-29 01:57:15,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:15,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:57:15,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:15,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:57:15,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:57:15,138 INFO L87 Difference]: Start difference. First operand 145 states and 154 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:15,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:15,217 INFO L93 Difference]: Finished difference Result 277 states and 296 transitions. [2023-11-29 01:57:15,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:57:15,218 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-29 01:57:15,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:15,220 INFO L225 Difference]: With dead ends: 277 [2023-11-29 01:57:15,220 INFO L226 Difference]: Without dead ends: 147 [2023-11-29 01:57:15,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:57:15,222 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 16 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:15,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 545 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:57:15,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-11-29 01:57:15,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2023-11-29 01:57:15,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 83 states have (on average 1.7349397590361446) internal successors, (144), 138 states have internal predecessors, (144), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 01:57:15,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 156 transitions. [2023-11-29 01:57:15,248 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 156 transitions. Word has length 20 [2023-11-29 01:57:15,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:15,249 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 156 transitions. [2023-11-29 01:57:15,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:15,249 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 156 transitions. [2023-11-29 01:57:15,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 01:57:15,250 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:15,250 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:15,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 01:57:15,250 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:15,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:15,251 INFO L85 PathProgramCache]: Analyzing trace with hash -813748582, now seen corresponding path program 1 times [2023-11-29 01:57:15,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:15,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300379738] [2023-11-29 01:57:15,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:15,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:15,261 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:15,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1654597512] [2023-11-29 01:57:15,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:15,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:15,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:15,265 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:15,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:57:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:15,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:57:15,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:15,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:15,344 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:15,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:15,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300379738] [2023-11-29 01:57:15,345 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:15,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654597512] [2023-11-29 01:57:15,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654597512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:15,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:15,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:57:15,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555579299] [2023-11-29 01:57:15,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:15,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:57:15,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:15,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:57:15,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:57:15,347 INFO L87 Difference]: Start difference. First operand 147 states and 156 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:15,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:15,413 INFO L93 Difference]: Finished difference Result 230 states and 247 transitions. [2023-11-29 01:57:15,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:57:15,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2023-11-29 01:57:15,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:15,416 INFO L225 Difference]: With dead ends: 230 [2023-11-29 01:57:15,416 INFO L226 Difference]: Without dead ends: 226 [2023-11-29 01:57:15,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:57:15,417 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 72 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:15,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 246 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:15,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-11-29 01:57:15,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 192. [2023-11-29 01:57:15,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 124 states have (on average 1.7661290322580645) internal successors, (219), 179 states have internal predecessors, (219), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:57:15,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 239 transitions. [2023-11-29 01:57:15,431 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 239 transitions. Word has length 24 [2023-11-29 01:57:15,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:15,431 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 239 transitions. [2023-11-29 01:57:15,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:15,431 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 239 transitions. [2023-11-29 01:57:15,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 01:57:15,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:15,432 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:15,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 01:57:15,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 01:57:15,636 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:15,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:15,637 INFO L85 PathProgramCache]: Analyzing trace with hash -813749252, now seen corresponding path program 1 times [2023-11-29 01:57:15,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:15,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787245248] [2023-11-29 01:57:15,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:15,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:15,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:57:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:15,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 01:57:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:15,759 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:15,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:15,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787245248] [2023-11-29 01:57:15,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787245248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:15,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:15,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 01:57:15,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918830037] [2023-11-29 01:57:15,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:15,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:57:15,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:15,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:57:15,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:57:15,761 INFO L87 Difference]: Start difference. First operand 192 states and 239 transitions. Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:15,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:15,925 INFO L93 Difference]: Finished difference Result 243 states and 259 transitions. [2023-11-29 01:57:15,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:57:15,926 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2023-11-29 01:57:15,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:15,928 INFO L225 Difference]: With dead ends: 243 [2023-11-29 01:57:15,928 INFO L226 Difference]: Without dead ends: 241 [2023-11-29 01:57:15,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:57:15,929 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 196 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:15,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 772 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:15,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-11-29 01:57:15,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 196. [2023-11-29 01:57:15,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 127 states have (on average 1.7322834645669292) internal successors, (220), 182 states have internal predecessors, (220), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:57:15,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 240 transitions. [2023-11-29 01:57:15,941 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 240 transitions. Word has length 24 [2023-11-29 01:57:15,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:15,942 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 240 transitions. [2023-11-29 01:57:15,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:15,942 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 240 transitions. [2023-11-29 01:57:15,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 01:57:15,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:15,943 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:15,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 01:57:15,943 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:15,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:15,944 INFO L85 PathProgramCache]: Analyzing trace with hash 543577046, now seen corresponding path program 1 times [2023-11-29 01:57:15,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:15,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974305687] [2023-11-29 01:57:15,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:15,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:16,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:57:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:16,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 01:57:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:16,060 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:16,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:16,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974305687] [2023-11-29 01:57:16,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974305687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:16,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:16,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 01:57:16,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14374828] [2023-11-29 01:57:16,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:16,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:57:16,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:16,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:57:16,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:57:16,062 INFO L87 Difference]: Start difference. First operand 196 states and 240 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:16,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:16,167 INFO L93 Difference]: Finished difference Result 400 states and 490 transitions. [2023-11-29 01:57:16,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:57:16,168 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2023-11-29 01:57:16,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:16,170 INFO L225 Difference]: With dead ends: 400 [2023-11-29 01:57:16,170 INFO L226 Difference]: Without dead ends: 221 [2023-11-29 01:57:16,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:57:16,171 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 36 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:16,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 805 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:16,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-11-29 01:57:16,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 201. [2023-11-29 01:57:16,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 132 states have (on average 1.7121212121212122) internal successors, (226), 187 states have internal predecessors, (226), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:57:16,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 246 transitions. [2023-11-29 01:57:16,183 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 246 transitions. Word has length 25 [2023-11-29 01:57:16,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:16,183 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 246 transitions. [2023-11-29 01:57:16,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:16,183 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 246 transitions. [2023-11-29 01:57:16,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 01:57:16,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:16,184 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:16,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 01:57:16,185 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:16,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:16,185 INFO L85 PathProgramCache]: Analyzing trace with hash -328334212, now seen corresponding path program 1 times [2023-11-29 01:57:16,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:16,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838573796] [2023-11-29 01:57:16,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:16,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:16,195 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:16,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1064555188] [2023-11-29 01:57:16,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:16,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:16,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:16,201 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:16,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 01:57:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:16,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:57:16,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:16,292 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:16,292 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:16,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:16,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838573796] [2023-11-29 01:57:16,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:16,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064555188] [2023-11-29 01:57:16,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064555188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:16,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:16,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:57:16,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651381025] [2023-11-29 01:57:16,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:16,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:57:16,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:16,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:57:16,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:57:16,294 INFO L87 Difference]: Start difference. First operand 201 states and 246 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:16,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:16,361 INFO L93 Difference]: Finished difference Result 233 states and 250 transitions. [2023-11-29 01:57:16,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:57:16,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-11-29 01:57:16,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:16,363 INFO L225 Difference]: With dead ends: 233 [2023-11-29 01:57:16,363 INFO L226 Difference]: Without dead ends: 232 [2023-11-29 01:57:16,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:57:16,364 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 69 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:16,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 405 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:16,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-11-29 01:57:16,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 202. [2023-11-29 01:57:16,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 133 states have (on average 1.7067669172932332) internal successors, (227), 188 states have internal predecessors, (227), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:57:16,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 247 transitions. [2023-11-29 01:57:16,377 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 247 transitions. Word has length 26 [2023-11-29 01:57:16,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:16,378 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 247 transitions. [2023-11-29 01:57:16,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:16,378 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 247 transitions. [2023-11-29 01:57:16,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 01:57:16,379 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:16,379 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:16,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 01:57:16,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:16,585 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:16,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:16,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1588425813, now seen corresponding path program 1 times [2023-11-29 01:57:16,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:16,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195689406] [2023-11-29 01:57:16,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:16,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:16,593 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:16,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1638908100] [2023-11-29 01:57:16,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:16,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:16,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:16,595 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:16,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 01:57:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:16,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:57:16,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:16,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:16,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:16,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:16,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195689406] [2023-11-29 01:57:16,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:16,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638908100] [2023-11-29 01:57:16,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638908100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:16,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:16,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:57:16,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778320198] [2023-11-29 01:57:16,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:16,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:57:16,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:16,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:57:16,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:57:16,748 INFO L87 Difference]: Start difference. First operand 202 states and 247 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:16,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:16,877 INFO L93 Difference]: Finished difference Result 232 states and 249 transitions. [2023-11-29 01:57:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:57:16,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-11-29 01:57:16,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:16,880 INFO L225 Difference]: With dead ends: 232 [2023-11-29 01:57:16,880 INFO L226 Difference]: Without dead ends: 231 [2023-11-29 01:57:16,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:57:16,881 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 68 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:16,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 349 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:16,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-11-29 01:57:16,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 203. [2023-11-29 01:57:16,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 134 states have (on average 1.7014925373134329) internal successors, (228), 189 states have internal predecessors, (228), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:57:16,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 248 transitions. [2023-11-29 01:57:16,895 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 248 transitions. Word has length 27 [2023-11-29 01:57:16,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:16,895 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 248 transitions. [2023-11-29 01:57:16,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:16,895 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 248 transitions. [2023-11-29 01:57:16,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 01:57:16,896 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:16,897 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:16,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 01:57:17,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 01:57:17,099 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:17,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:17,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1608466120, now seen corresponding path program 1 times [2023-11-29 01:57:17,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:17,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761086946] [2023-11-29 01:57:17,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:17,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:17,108 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:17,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1385125079] [2023-11-29 01:57:17,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:17,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:17,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:17,110 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:17,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 01:57:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:17,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:57:17,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:17,312 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:57:17,312 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:17,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:17,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761086946] [2023-11-29 01:57:17,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:17,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385125079] [2023-11-29 01:57:17,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385125079] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:17,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:17,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:57:17,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053189215] [2023-11-29 01:57:17,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:17,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:57:17,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:17,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:57:17,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:57:17,315 INFO L87 Difference]: Start difference. First operand 203 states and 248 transitions. Second operand has 7 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:17,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:17,462 INFO L93 Difference]: Finished difference Result 230 states and 248 transitions. [2023-11-29 01:57:17,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:57:17,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-11-29 01:57:17,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:17,464 INFO L225 Difference]: With dead ends: 230 [2023-11-29 01:57:17,464 INFO L226 Difference]: Without dead ends: 229 [2023-11-29 01:57:17,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:57:17,465 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 426 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:17,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 464 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:17,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2023-11-29 01:57:17,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 203. [2023-11-29 01:57:17,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 134 states have (on average 1.6940298507462686) internal successors, (227), 189 states have internal predecessors, (227), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:57:17,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 247 transitions. [2023-11-29 01:57:17,477 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 247 transitions. Word has length 27 [2023-11-29 01:57:17,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:17,477 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 247 transitions. [2023-11-29 01:57:17,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:17,478 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 247 transitions. [2023-11-29 01:57:17,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 01:57:17,479 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:17,479 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:17,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 01:57:17,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 01:57:17,685 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:17,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:17,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1996559778, now seen corresponding path program 1 times [2023-11-29 01:57:17,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:17,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685639403] [2023-11-29 01:57:17,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:17,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:17,692 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:17,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [306236935] [2023-11-29 01:57:17,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:17,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:17,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:17,693 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:17,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 01:57:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:17,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:57:17,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:17,806 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:17,806 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:17,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:17,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685639403] [2023-11-29 01:57:17,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:17,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306236935] [2023-11-29 01:57:17,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306236935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:17,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:17,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:57:17,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920276396] [2023-11-29 01:57:17,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:17,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:57:17,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:17,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:57:17,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:57:17,808 INFO L87 Difference]: Start difference. First operand 203 states and 247 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:17,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:17,936 INFO L93 Difference]: Finished difference Result 313 states and 337 transitions. [2023-11-29 01:57:17,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:57:17,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-11-29 01:57:17,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:17,939 INFO L225 Difference]: With dead ends: 313 [2023-11-29 01:57:17,939 INFO L226 Difference]: Without dead ends: 312 [2023-11-29 01:57:17,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:57:17,940 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 216 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:17,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 302 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:17,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-29 01:57:17,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 209. [2023-11-29 01:57:17,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 140 states have (on average 1.6642857142857144) internal successors, (233), 195 states have internal predecessors, (233), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:57:17,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 253 transitions. [2023-11-29 01:57:17,953 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 253 transitions. Word has length 28 [2023-11-29 01:57:17,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:17,953 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 253 transitions. [2023-11-29 01:57:17,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:17,954 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 253 transitions. [2023-11-29 01:57:17,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 01:57:17,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:17,955 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:17,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 01:57:18,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 01:57:18,156 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:18,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:18,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1677157923, now seen corresponding path program 1 times [2023-11-29 01:57:18,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:18,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813639296] [2023-11-29 01:57:18,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:18,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:18,163 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:18,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [327228152] [2023-11-29 01:57:18,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:18,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:18,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:18,165 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:18,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 01:57:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:18,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:57:18,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:18,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:57:18,358 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:18,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:18,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813639296] [2023-11-29 01:57:18,359 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:18,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327228152] [2023-11-29 01:57:18,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327228152] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:18,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:18,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:57:18,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168425150] [2023-11-29 01:57:18,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:18,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:57:18,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:18,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:57:18,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:57:18,361 INFO L87 Difference]: Start difference. First operand 209 states and 253 transitions. Second operand has 7 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:18,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:18,506 INFO L93 Difference]: Finished difference Result 236 states and 253 transitions. [2023-11-29 01:57:18,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:57:18,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-11-29 01:57:18,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:18,509 INFO L225 Difference]: With dead ends: 236 [2023-11-29 01:57:18,509 INFO L226 Difference]: Without dead ends: 235 [2023-11-29 01:57:18,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:57:18,510 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 420 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:18,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 464 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:18,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2023-11-29 01:57:18,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 209. [2023-11-29 01:57:18,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 140 states have (on average 1.6571428571428573) internal successors, (232), 195 states have internal predecessors, (232), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:57:18,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 252 transitions. [2023-11-29 01:57:18,523 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 252 transitions. Word has length 28 [2023-11-29 01:57:18,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:18,523 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 252 transitions. [2023-11-29 01:57:18,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:18,524 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 252 transitions. [2023-11-29 01:57:18,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 01:57:18,524 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:18,524 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:18,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 01:57:18,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 01:57:18,725 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:18,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:18,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1763810803, now seen corresponding path program 1 times [2023-11-29 01:57:18,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:18,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506208863] [2023-11-29 01:57:18,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:18,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:18,732 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:18,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [398926561] [2023-11-29 01:57:18,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:18,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:18,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:18,733 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:18,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 01:57:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:18,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:57:18,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:18,846 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:18,847 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:18,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:18,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506208863] [2023-11-29 01:57:18,847 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:18,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398926561] [2023-11-29 01:57:18,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398926561] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:18,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:18,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:57:18,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014736931] [2023-11-29 01:57:18,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:18,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:57:18,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:18,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:57:18,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:57:18,849 INFO L87 Difference]: Start difference. First operand 209 states and 252 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:18,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:18,998 INFO L93 Difference]: Finished difference Result 311 states and 334 transitions. [2023-11-29 01:57:18,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:57:18,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2023-11-29 01:57:18,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:19,001 INFO L225 Difference]: With dead ends: 311 [2023-11-29 01:57:19,001 INFO L226 Difference]: Without dead ends: 310 [2023-11-29 01:57:19,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:57:19,002 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 144 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:19,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 399 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:19,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-29 01:57:19,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 210. [2023-11-29 01:57:19,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 141 states have (on average 1.6524822695035462) internal successors, (233), 196 states have internal predecessors, (233), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:57:19,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 253 transitions. [2023-11-29 01:57:19,012 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 253 transitions. Word has length 29 [2023-11-29 01:57:19,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:19,012 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 253 transitions. [2023-11-29 01:57:19,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:19,012 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 253 transitions. [2023-11-29 01:57:19,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 01:57:19,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:19,013 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:19,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 01:57:19,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 01:57:19,216 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:19,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:19,216 INFO L85 PathProgramCache]: Analyzing trace with hash 452288154, now seen corresponding path program 1 times [2023-11-29 01:57:19,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:19,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022617789] [2023-11-29 01:57:19,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:19,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:19,222 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:19,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1240315357] [2023-11-29 01:57:19,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:19,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:19,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:19,224 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:19,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 01:57:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:19,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:57:19,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:19,398 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:57:19,398 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:19,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:19,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022617789] [2023-11-29 01:57:19,399 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:19,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240315357] [2023-11-29 01:57:19,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240315357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:19,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:19,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:57:19,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398182263] [2023-11-29 01:57:19,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:19,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:57:19,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:19,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:57:19,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:57:19,401 INFO L87 Difference]: Start difference. First operand 210 states and 253 transitions. Second operand has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:19,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:19,817 INFO L93 Difference]: Finished difference Result 293 states and 317 transitions. [2023-11-29 01:57:19,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:57:19,818 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2023-11-29 01:57:19,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:19,820 INFO L225 Difference]: With dead ends: 293 [2023-11-29 01:57:19,820 INFO L226 Difference]: Without dead ends: 292 [2023-11-29 01:57:19,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:57:19,821 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 486 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:19,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 560 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:57:19,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-29 01:57:19,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 210. [2023-11-29 01:57:19,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 141 states have (on average 1.6453900709219857) internal successors, (232), 196 states have internal predecessors, (232), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:57:19,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 252 transitions. [2023-11-29 01:57:19,834 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 252 transitions. Word has length 29 [2023-11-29 01:57:19,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:19,834 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 252 transitions. [2023-11-29 01:57:19,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:19,834 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 252 transitions. [2023-11-29 01:57:19,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 01:57:19,835 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:19,835 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:19,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 01:57:20,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 01:57:20,041 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:20,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:20,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1156440128, now seen corresponding path program 1 times [2023-11-29 01:57:20,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:20,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806443660] [2023-11-29 01:57:20,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:20,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:20,046 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:20,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [622519573] [2023-11-29 01:57:20,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:20,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:20,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:20,047 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:20,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 01:57:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:20,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:57:20,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:20,205 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:20,206 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:20,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:20,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806443660] [2023-11-29 01:57:20,206 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:20,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622519573] [2023-11-29 01:57:20,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622519573] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:20,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:20,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:57:20,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461245330] [2023-11-29 01:57:20,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:20,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:57:20,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:20,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:57:20,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:57:20,208 INFO L87 Difference]: Start difference. First operand 210 states and 252 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:20,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:20,268 INFO L93 Difference]: Finished difference Result 243 states and 260 transitions. [2023-11-29 01:57:20,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:57:20,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2023-11-29 01:57:20,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:20,270 INFO L225 Difference]: With dead ends: 243 [2023-11-29 01:57:20,270 INFO L226 Difference]: Without dead ends: 242 [2023-11-29 01:57:20,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:57:20,271 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 68 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:20,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 417 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:57:20,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-11-29 01:57:20,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 213. [2023-11-29 01:57:20,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 144 states have (on average 1.6458333333333333) internal successors, (237), 199 states have internal predecessors, (237), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:57:20,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 257 transitions. [2023-11-29 01:57:20,283 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 257 transitions. Word has length 30 [2023-11-29 01:57:20,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:20,283 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 257 transitions. [2023-11-29 01:57:20,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:20,284 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 257 transitions. [2023-11-29 01:57:20,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 01:57:20,284 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:20,284 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:20,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 01:57:20,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:20,490 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:20,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:20,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1136030981, now seen corresponding path program 1 times [2023-11-29 01:57:20,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:20,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790332778] [2023-11-29 01:57:20,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:20,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:20,497 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:20,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1838610516] [2023-11-29 01:57:20,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:20,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:20,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:20,499 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:20,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 01:57:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:20,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:57:20,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:20,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:20,621 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:20,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:20,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790332778] [2023-11-29 01:57:20,621 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:20,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838610516] [2023-11-29 01:57:20,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838610516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:20,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:20,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:57:20,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972788774] [2023-11-29 01:57:20,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:20,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:57:20,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:20,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:57:20,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:57:20,623 INFO L87 Difference]: Start difference. First operand 213 states and 257 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:20,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:20,741 INFO L93 Difference]: Finished difference Result 238 states and 257 transitions. [2023-11-29 01:57:20,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:57:20,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2023-11-29 01:57:20,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:20,743 INFO L225 Difference]: With dead ends: 238 [2023-11-29 01:57:20,743 INFO L226 Difference]: Without dead ends: 237 [2023-11-29 01:57:20,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:57:20,744 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 182 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:20,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 236 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:20,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-11-29 01:57:20,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 213. [2023-11-29 01:57:20,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 144 states have (on average 1.6388888888888888) internal successors, (236), 199 states have internal predecessors, (236), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:57:20,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 256 transitions. [2023-11-29 01:57:20,757 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 256 transitions. Word has length 30 [2023-11-29 01:57:20,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:20,757 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 256 transitions. [2023-11-29 01:57:20,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:20,758 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 256 transitions. [2023-11-29 01:57:20,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 01:57:20,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:20,758 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:20,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 01:57:20,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 01:57:20,964 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:20,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:20,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1489905775, now seen corresponding path program 1 times [2023-11-29 01:57:20,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:20,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155380260] [2023-11-29 01:57:20,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:20,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:20,971 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:20,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1797114844] [2023-11-29 01:57:20,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:20,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:20,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:20,973 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:20,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 01:57:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:21,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:57:21,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:21,126 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:21,126 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:21,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:21,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155380260] [2023-11-29 01:57:21,126 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:21,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797114844] [2023-11-29 01:57:21,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797114844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:21,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:21,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:57:21,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429706720] [2023-11-29 01:57:21,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:21,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:57:21,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:21,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:57:21,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:57:21,128 INFO L87 Difference]: Start difference. First operand 213 states and 256 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:21,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:21,342 INFO L93 Difference]: Finished difference Result 300 states and 325 transitions. [2023-11-29 01:57:21,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:57:21,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2023-11-29 01:57:21,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:21,345 INFO L225 Difference]: With dead ends: 300 [2023-11-29 01:57:21,345 INFO L226 Difference]: Without dead ends: 299 [2023-11-29 01:57:21,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:57:21,346 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 129 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:21,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 453 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:57:21,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-11-29 01:57:21,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 215. [2023-11-29 01:57:21,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 146 states have (on average 1.63013698630137) internal successors, (238), 201 states have internal predecessors, (238), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:57:21,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 258 transitions. [2023-11-29 01:57:21,359 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 258 transitions. Word has length 31 [2023-11-29 01:57:21,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:21,360 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 258 transitions. [2023-11-29 01:57:21,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:21,360 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 258 transitions. [2023-11-29 01:57:21,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 01:57:21,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:21,361 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:21,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 01:57:21,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 01:57:21,561 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:21,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:21,562 INFO L85 PathProgramCache]: Analyzing trace with hash 857222140, now seen corresponding path program 1 times [2023-11-29 01:57:21,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:21,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856047120] [2023-11-29 01:57:21,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:21,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:21,568 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:21,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [265793327] [2023-11-29 01:57:21,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:21,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:21,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:21,570 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:21,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 01:57:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:21,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:57:21,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:21,857 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:57:21,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:21,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:21,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856047120] [2023-11-29 01:57:21,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:21,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265793327] [2023-11-29 01:57:21,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265793327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:21,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:21,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:57:21,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889602033] [2023-11-29 01:57:21,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:21,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:57:21,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:21,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:57:21,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:57:21,860 INFO L87 Difference]: Start difference. First operand 215 states and 258 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:22,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:22,296 INFO L93 Difference]: Finished difference Result 294 states and 320 transitions. [2023-11-29 01:57:22,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:57:22,296 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2023-11-29 01:57:22,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:22,298 INFO L225 Difference]: With dead ends: 294 [2023-11-29 01:57:22,298 INFO L226 Difference]: Without dead ends: 293 [2023-11-29 01:57:22,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:57:22,299 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 411 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:22,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 548 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:57:22,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-29 01:57:22,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 215. [2023-11-29 01:57:22,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 146 states have (on average 1.6232876712328768) internal successors, (237), 201 states have internal predecessors, (237), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:57:22,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 257 transitions. [2023-11-29 01:57:22,325 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 257 transitions. Word has length 31 [2023-11-29 01:57:22,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:22,325 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 257 transitions. [2023-11-29 01:57:22,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:22,325 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 257 transitions. [2023-11-29 01:57:22,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 01:57:22,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:22,326 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:22,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 01:57:22,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:22,527 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:22,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:22,527 INFO L85 PathProgramCache]: Analyzing trace with hash 804082663, now seen corresponding path program 1 times [2023-11-29 01:57:22,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:22,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437006396] [2023-11-29 01:57:22,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:22,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:22,532 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:22,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [504358369] [2023-11-29 01:57:22,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:22,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:22,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:22,533 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:22,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 01:57:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:22,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:57:22,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:22,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:22,609 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:22,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:22,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437006396] [2023-11-29 01:57:22,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:22,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504358369] [2023-11-29 01:57:22,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504358369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:22,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:22,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:57:22,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907214116] [2023-11-29 01:57:22,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:22,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:57:22,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:22,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:57:22,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:57:22,611 INFO L87 Difference]: Start difference. First operand 215 states and 257 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:22,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:22,703 INFO L93 Difference]: Finished difference Result 242 states and 261 transitions. [2023-11-29 01:57:22,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:57:22,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2023-11-29 01:57:22,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:22,705 INFO L225 Difference]: With dead ends: 242 [2023-11-29 01:57:22,705 INFO L226 Difference]: Without dead ends: 241 [2023-11-29 01:57:22,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:57:22,706 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 67 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:22,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 382 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:22,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-11-29 01:57:22,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 215. [2023-11-29 01:57:22,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 146 states have (on average 1.6164383561643836) internal successors, (236), 201 states have internal predecessors, (236), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:57:22,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 256 transitions. [2023-11-29 01:57:22,719 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 256 transitions. Word has length 32 [2023-11-29 01:57:22,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:22,719 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 256 transitions. [2023-11-29 01:57:22,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:22,720 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 256 transitions. [2023-11-29 01:57:22,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 01:57:22,720 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:22,720 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:22,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 01:57:22,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:22,921 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:22,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:22,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1575341489, now seen corresponding path program 1 times [2023-11-29 01:57:22,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:22,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556429861] [2023-11-29 01:57:22,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:22,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:22,927 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:22,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1211116435] [2023-11-29 01:57:22,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:22,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:22,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:22,929 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:22,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 01:57:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:22,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:57:22,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:23,039 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:23,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:23,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:23,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556429861] [2023-11-29 01:57:23,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:23,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211116435] [2023-11-29 01:57:23,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211116435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:23,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:23,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:57:23,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443305145] [2023-11-29 01:57:23,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:23,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:57:23,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:23,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:57:23,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:57:23,042 INFO L87 Difference]: Start difference. First operand 215 states and 256 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:23,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:23,133 INFO L93 Difference]: Finished difference Result 279 states and 323 transitions. [2023-11-29 01:57:23,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:57:23,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2023-11-29 01:57:23,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:23,136 INFO L225 Difference]: With dead ends: 279 [2023-11-29 01:57:23,136 INFO L226 Difference]: Without dead ends: 277 [2023-11-29 01:57:23,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:57:23,137 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 108 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:23,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 801 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:23,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-11-29 01:57:23,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 234. [2023-11-29 01:57:23,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 165 states have (on average 1.6303030303030304) internal successors, (269), 220 states have internal predecessors, (269), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:57:23,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 289 transitions. [2023-11-29 01:57:23,150 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 289 transitions. Word has length 33 [2023-11-29 01:57:23,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:23,151 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 289 transitions. [2023-11-29 01:57:23,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:23,151 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 289 transitions. [2023-11-29 01:57:23,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 01:57:23,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:23,151 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:23,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 01:57:23,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:23,352 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:23,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:23,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1590945947, now seen corresponding path program 1 times [2023-11-29 01:57:23,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:23,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130487141] [2023-11-29 01:57:23,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:23,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:23,357 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:23,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1806560751] [2023-11-29 01:57:23,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:23,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:23,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:23,358 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:23,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 01:57:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:23,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:57:23,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:23,457 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:23,457 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:57:23,556 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:23,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:23,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130487141] [2023-11-29 01:57:23,556 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:23,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806560751] [2023-11-29 01:57:23,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806560751] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:57:23,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:57:23,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2023-11-29 01:57:23,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679945286] [2023-11-29 01:57:23,557 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:57:23,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:57:23,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:23,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:57:23,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:57:23,559 INFO L87 Difference]: Start difference. First operand 234 states and 289 transitions. Second operand has 14 states, 13 states have (on average 4.153846153846154) internal successors, (54), 14 states have internal predecessors, (54), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:57:23,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:23,679 INFO L93 Difference]: Finished difference Result 327 states and 385 transitions. [2023-11-29 01:57:23,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 01:57:23,679 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.153846153846154) internal successors, (54), 14 states have internal predecessors, (54), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2023-11-29 01:57:23,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:23,682 INFO L225 Difference]: With dead ends: 327 [2023-11-29 01:57:23,682 INFO L226 Difference]: Without dead ends: 297 [2023-11-29 01:57:23,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2023-11-29 01:57:23,684 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 101 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:23,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1063 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:23,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2023-11-29 01:57:23,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 256. [2023-11-29 01:57:23,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 187 states have (on average 1.6149732620320856) internal successors, (302), 242 states have internal predecessors, (302), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:57:23,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 322 transitions. [2023-11-29 01:57:23,700 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 322 transitions. Word has length 34 [2023-11-29 01:57:23,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:23,700 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 322 transitions. [2023-11-29 01:57:23,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.153846153846154) internal successors, (54), 14 states have internal predecessors, (54), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:57:23,701 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 322 transitions. [2023-11-29 01:57:23,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-29 01:57:23,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:23,701 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:23,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-29 01:57:23,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:23,902 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:23,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:23,902 INFO L85 PathProgramCache]: Analyzing trace with hash 906644598, now seen corresponding path program 1 times [2023-11-29 01:57:23,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:23,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768670650] [2023-11-29 01:57:23,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:23,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:23,909 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:23,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [238553303] [2023-11-29 01:57:23,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:23,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:23,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:23,910 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:23,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 01:57:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:23,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:57:23,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:24,020 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:57:24,021 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:57:24,132 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:57:24,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:24,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768670650] [2023-11-29 01:57:24,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:24,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238553303] [2023-11-29 01:57:24,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238553303] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:57:24,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:57:24,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2023-11-29 01:57:24,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769475048] [2023-11-29 01:57:24,133 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:57:24,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:57:24,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:24,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:57:24,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:57:24,134 INFO L87 Difference]: Start difference. First operand 256 states and 322 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:57:24,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:24,528 INFO L93 Difference]: Finished difference Result 776 states and 903 transitions. [2023-11-29 01:57:24,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:57:24,528 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2023-11-29 01:57:24,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:24,533 INFO L225 Difference]: With dead ends: 776 [2023-11-29 01:57:24,533 INFO L226 Difference]: Without dead ends: 748 [2023-11-29 01:57:24,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 61 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:57:24,534 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 1161 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:24,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 584 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:57:24,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-11-29 01:57:24,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 350. [2023-11-29 01:57:24,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 277 states have (on average 1.6895306859205776) internal successors, (468), 332 states have internal predecessors, (468), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:57:24,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 496 transitions. [2023-11-29 01:57:24,564 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 496 transitions. Word has length 37 [2023-11-29 01:57:24,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:24,564 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 496 transitions. [2023-11-29 01:57:24,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:57:24,564 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 496 transitions. [2023-11-29 01:57:24,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 01:57:24,565 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:24,565 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:24,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-29 01:57:24,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:24,766 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:24,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:24,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1174074924, now seen corresponding path program 1 times [2023-11-29 01:57:24,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:24,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692218628] [2023-11-29 01:57:24,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:24,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:24,774 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:24,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [991364858] [2023-11-29 01:57:24,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:24,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:24,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:24,775 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:24,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 01:57:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:24,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:57:24,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:24,937 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:57:24,937 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:24,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:24,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692218628] [2023-11-29 01:57:24,937 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:24,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991364858] [2023-11-29 01:57:24,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991364858] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:24,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:24,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:57:24,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130439875] [2023-11-29 01:57:24,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:24,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:57:24,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:24,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:57:24,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:57:24,939 INFO L87 Difference]: Start difference. First operand 350 states and 496 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 01:57:25,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:25,179 INFO L93 Difference]: Finished difference Result 376 states and 498 transitions. [2023-11-29 01:57:25,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:57:25,180 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2023-11-29 01:57:25,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:25,182 INFO L225 Difference]: With dead ends: 376 [2023-11-29 01:57:25,182 INFO L226 Difference]: Without dead ends: 375 [2023-11-29 01:57:25,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:57:25,183 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 187 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:25,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 455 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:57:25,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-11-29 01:57:25,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 350. [2023-11-29 01:57:25,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 277 states have (on average 1.6859205776173285) internal successors, (467), 332 states have internal predecessors, (467), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:57:25,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 495 transitions. [2023-11-29 01:57:25,204 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 495 transitions. Word has length 40 [2023-11-29 01:57:25,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:25,205 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 495 transitions. [2023-11-29 01:57:25,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 01:57:25,205 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 495 transitions. [2023-11-29 01:57:25,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 01:57:25,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:25,206 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:25,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 01:57:25,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:25,406 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:25,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:25,407 INFO L85 PathProgramCache]: Analyzing trace with hash -2036584168, now seen corresponding path program 1 times [2023-11-29 01:57:25,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:25,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325673276] [2023-11-29 01:57:25,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:25,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:25,413 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:25,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1243985832] [2023-11-29 01:57:25,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:25,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:25,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:25,414 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:25,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 01:57:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:25,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:57:25,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:25,555 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:25,555 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:25,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:25,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325673276] [2023-11-29 01:57:25,556 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:25,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243985832] [2023-11-29 01:57:25,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243985832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:25,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:25,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:57:25,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993667439] [2023-11-29 01:57:25,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:25,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:57:25,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:25,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:57:25,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:57:25,557 INFO L87 Difference]: Start difference. First operand 350 states and 495 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 01:57:25,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:25,802 INFO L93 Difference]: Finished difference Result 375 states and 497 transitions. [2023-11-29 01:57:25,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:57:25,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2023-11-29 01:57:25,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:25,805 INFO L225 Difference]: With dead ends: 375 [2023-11-29 01:57:25,805 INFO L226 Difference]: Without dead ends: 374 [2023-11-29 01:57:25,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:57:25,806 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 183 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:25,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 232 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:57:25,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2023-11-29 01:57:25,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 350. [2023-11-29 01:57:25,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 277 states have (on average 1.6823104693140793) internal successors, (466), 332 states have internal predecessors, (466), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:57:25,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 494 transitions. [2023-11-29 01:57:25,821 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 494 transitions. Word has length 41 [2023-11-29 01:57:25,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:25,822 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 494 transitions. [2023-11-29 01:57:25,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 01:57:25,822 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 494 transitions. [2023-11-29 01:57:25,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 01:57:25,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:25,823 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:25,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 01:57:26,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 01:57:26,023 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:26,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:26,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1290400342, now seen corresponding path program 1 times [2023-11-29 01:57:26,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:26,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880214041] [2023-11-29 01:57:26,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:26,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:26,028 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:26,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1822894319] [2023-11-29 01:57:26,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:26,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:26,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:26,029 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:26,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 01:57:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:26,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 01:57:26,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:26,191 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:57:26,191 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:26,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:26,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880214041] [2023-11-29 01:57:26,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:26,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822894319] [2023-11-29 01:57:26,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822894319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:26,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:26,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:57:26,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853176215] [2023-11-29 01:57:26,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:26,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:57:26,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:26,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:57:26,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:57:26,194 INFO L87 Difference]: Start difference. First operand 350 states and 494 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 01:57:26,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:26,630 INFO L93 Difference]: Finished difference Result 370 states and 494 transitions. [2023-11-29 01:57:26,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:57:26,630 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2023-11-29 01:57:26,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:26,633 INFO L225 Difference]: With dead ends: 370 [2023-11-29 01:57:26,633 INFO L226 Difference]: Without dead ends: 369 [2023-11-29 01:57:26,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:57:26,634 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 210 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:26,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 418 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:57:26,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2023-11-29 01:57:26,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 350. [2023-11-29 01:57:26,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 277 states have (on average 1.6787003610108304) internal successors, (465), 332 states have internal predecessors, (465), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:57:26,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 493 transitions. [2023-11-29 01:57:26,654 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 493 transitions. Word has length 42 [2023-11-29 01:57:26,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:26,654 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 493 transitions. [2023-11-29 01:57:26,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 01:57:26,654 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 493 transitions. [2023-11-29 01:57:26,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 01:57:26,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:26,655 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:26,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-29 01:57:26,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 01:57:26,856 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:26,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:26,856 INFO L85 PathProgramCache]: Analyzing trace with hash 413952359, now seen corresponding path program 1 times [2023-11-29 01:57:26,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:26,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817651606] [2023-11-29 01:57:26,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:26,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:26,861 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:26,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1096977131] [2023-11-29 01:57:26,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:26,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:26,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:26,863 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:26,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 01:57:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:26,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:57:26,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:26,987 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:26,987 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:57:27,104 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:27,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:27,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817651606] [2023-11-29 01:57:27,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:27,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096977131] [2023-11-29 01:57:27,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096977131] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:57:27,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:57:27,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2023-11-29 01:57:27,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356412794] [2023-11-29 01:57:27,104 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:57:27,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 01:57:27,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:27,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 01:57:27,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-11-29 01:57:27,105 INFO L87 Difference]: Start difference. First operand 350 states and 493 transitions. Second operand has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 states have internal predecessors, (68), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:57:27,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:27,301 INFO L93 Difference]: Finished difference Result 656 states and 910 transitions. [2023-11-29 01:57:27,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 01:57:27,301 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 states have internal predecessors, (68), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2023-11-29 01:57:27,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:27,303 INFO L225 Difference]: With dead ends: 656 [2023-11-29 01:57:27,303 INFO L226 Difference]: Without dead ends: 401 [2023-11-29 01:57:27,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=255, Invalid=801, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 01:57:27,304 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 114 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:27,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 1268 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:27,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-11-29 01:57:27,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 375. [2023-11-29 01:57:27,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 302 states have (on average 1.6490066225165563) internal successors, (498), 357 states have internal predecessors, (498), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:57:27,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 526 transitions. [2023-11-29 01:57:27,335 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 526 transitions. Word has length 42 [2023-11-29 01:57:27,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:27,336 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 526 transitions. [2023-11-29 01:57:27,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.7777777777777777) internal successors, (68), 18 states have internal predecessors, (68), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:57:27,336 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 526 transitions. [2023-11-29 01:57:27,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 01:57:27,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:27,337 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:27,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 01:57:27,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 01:57:27,542 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:27,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:27,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1347705050, now seen corresponding path program 1 times [2023-11-29 01:57:27,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:27,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599888107] [2023-11-29 01:57:27,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:27,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:27,548 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:27,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370207028] [2023-11-29 01:57:27,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:27,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:27,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:27,550 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:27,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 01:57:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:27,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:57:27,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:28,009 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:57:28,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:28,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:28,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599888107] [2023-11-29 01:57:28,010 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:28,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370207028] [2023-11-29 01:57:28,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370207028] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:28,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:28,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 01:57:28,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136516274] [2023-11-29 01:57:28,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:28,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:57:28,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:28,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:57:28,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:57:28,012 INFO L87 Difference]: Start difference. First operand 375 states and 526 transitions. Second operand has 10 states, 8 states have (on average 4.625) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 01:57:29,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:29,745 INFO L93 Difference]: Finished difference Result 455 states and 595 transitions. [2023-11-29 01:57:29,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:57:29,745 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.625) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 43 [2023-11-29 01:57:29,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:29,748 INFO L225 Difference]: With dead ends: 455 [2023-11-29 01:57:29,748 INFO L226 Difference]: Without dead ends: 454 [2023-11-29 01:57:29,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:57:29,749 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 484 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:29,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 505 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:57:29,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-11-29 01:57:29,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 375. [2023-11-29 01:57:29,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 302 states have (on average 1.6456953642384107) internal successors, (497), 357 states have internal predecessors, (497), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:57:29,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 525 transitions. [2023-11-29 01:57:29,764 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 525 transitions. Word has length 43 [2023-11-29 01:57:29,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:29,764 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 525 transitions. [2023-11-29 01:57:29,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.625) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 01:57:29,764 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 525 transitions. [2023-11-29 01:57:29,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 01:57:29,765 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:29,765 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:29,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 01:57:29,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 01:57:29,968 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:29,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:29,969 INFO L85 PathProgramCache]: Analyzing trace with hash -52403646, now seen corresponding path program 1 times [2023-11-29 01:57:29,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:29,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495075711] [2023-11-29 01:57:29,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:29,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:29,975 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:29,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2123461158] [2023-11-29 01:57:29,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:29,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:29,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:29,977 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:29,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 01:57:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:30,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:57:30,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:30,062 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:30,062 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:30,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:30,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495075711] [2023-11-29 01:57:30,063 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:30,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123461158] [2023-11-29 01:57:30,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123461158] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:30,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:30,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:57:30,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997263651] [2023-11-29 01:57:30,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:30,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:57:30,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:30,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:57:30,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:57:30,064 INFO L87 Difference]: Start difference. First operand 375 states and 525 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:30,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:30,207 INFO L93 Difference]: Finished difference Result 925 states and 1289 transitions. [2023-11-29 01:57:30,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:57:30,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2023-11-29 01:57:30,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:30,210 INFO L225 Difference]: With dead ends: 925 [2023-11-29 01:57:30,210 INFO L226 Difference]: Without dead ends: 645 [2023-11-29 01:57:30,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:57:30,211 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 244 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:30,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 759 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:30,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2023-11-29 01:57:30,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 382. [2023-11-29 01:57:30,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 309 states have (on average 1.6796116504854368) internal successors, (519), 364 states have internal predecessors, (519), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:57:30,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 547 transitions. [2023-11-29 01:57:30,229 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 547 transitions. Word has length 43 [2023-11-29 01:57:30,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:30,230 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 547 transitions. [2023-11-29 01:57:30,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:30,230 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 547 transitions. [2023-11-29 01:57:30,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 01:57:30,230 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:30,231 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:30,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 01:57:30,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 01:57:30,431 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:30,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:30,432 INFO L85 PathProgramCache]: Analyzing trace with hash -52404316, now seen corresponding path program 1 times [2023-11-29 01:57:30,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:30,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486861607] [2023-11-29 01:57:30,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:30,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:30,438 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:30,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1724628205] [2023-11-29 01:57:30,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:30,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:30,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:30,440 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:30,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 01:57:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:30,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:57:30,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:30,603 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:30,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:30,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:30,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486861607] [2023-11-29 01:57:30,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:30,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724628205] [2023-11-29 01:57:30,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724628205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:30,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:30,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 01:57:30,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917670133] [2023-11-29 01:57:30,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:30,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:57:30,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:30,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:57:30,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:57:30,605 INFO L87 Difference]: Start difference. First operand 382 states and 547 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:30,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:30,837 INFO L93 Difference]: Finished difference Result 538 states and 729 transitions. [2023-11-29 01:57:30,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 01:57:30,837 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2023-11-29 01:57:30,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:30,841 INFO L225 Difference]: With dead ends: 538 [2023-11-29 01:57:30,841 INFO L226 Difference]: Without dead ends: 535 [2023-11-29 01:57:30,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:57:30,842 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 261 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:30,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 1275 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:30,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-11-29 01:57:30,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 461. [2023-11-29 01:57:30,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 383 states have (on average 1.671018276762402) internal successors, (640), 438 states have internal predecessors, (640), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 01:57:30,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 676 transitions. [2023-11-29 01:57:30,871 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 676 transitions. Word has length 43 [2023-11-29 01:57:30,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:30,871 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 676 transitions. [2023-11-29 01:57:30,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:57:30,872 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 676 transitions. [2023-11-29 01:57:30,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 01:57:30,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:30,872 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:30,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 01:57:31,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:31,073 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:31,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:31,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1624533714, now seen corresponding path program 1 times [2023-11-29 01:57:31,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:31,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774218418] [2023-11-29 01:57:31,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:31,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:31,078 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:31,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1830874284] [2023-11-29 01:57:31,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:31,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:31,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:31,079 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:31,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 01:57:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:31,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:57:31,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:31,204 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:31,205 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:57:31,344 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:57:31,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:31,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774218418] [2023-11-29 01:57:31,344 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:31,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830874284] [2023-11-29 01:57:31,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830874284] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:57:31,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:57:31,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2023-11-29 01:57:31,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524060960] [2023-11-29 01:57:31,345 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:57:31,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 01:57:31,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:31,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 01:57:31,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:57:31,346 INFO L87 Difference]: Start difference. First operand 461 states and 676 transitions. Second operand has 22 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 22 states have internal predecessors, (74), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:57:31,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:31,732 INFO L93 Difference]: Finished difference Result 1046 states and 1485 transitions. [2023-11-29 01:57:31,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-29 01:57:31,733 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 22 states have internal predecessors, (74), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2023-11-29 01:57:31,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:31,737 INFO L225 Difference]: With dead ends: 1046 [2023-11-29 01:57:31,737 INFO L226 Difference]: Without dead ends: 769 [2023-11-29 01:57:31,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=394, Invalid=1676, Unknown=0, NotChecked=0, Total=2070 [2023-11-29 01:57:31,739 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 196 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:31,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1776 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:57:31,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2023-11-29 01:57:31,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 638. [2023-11-29 01:57:31,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 550 states have (on average 1.6327272727272728) internal successors, (898), 605 states have internal predecessors, (898), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:57:31,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 950 transitions. [2023-11-29 01:57:31,780 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 950 transitions. Word has length 44 [2023-11-29 01:57:31,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:31,781 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 950 transitions. [2023-11-29 01:57:31,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 22 states have internal predecessors, (74), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:57:31,781 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 950 transitions. [2023-11-29 01:57:31,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 01:57:31,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:31,782 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:31,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 01:57:31,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-29 01:57:31,982 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:31,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:31,983 INFO L85 PathProgramCache]: Analyzing trace with hash -2103767920, now seen corresponding path program 1 times [2023-11-29 01:57:31,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:31,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146679024] [2023-11-29 01:57:31,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:31,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:31,989 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:31,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1344760000] [2023-11-29 01:57:31,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:31,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:31,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:31,991 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:31,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 01:57:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:32,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 01:57:32,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:32,289 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:57:32,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:57:33,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:33,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146679024] [2023-11-29 01:57:33,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:33,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344760000] [2023-11-29 01:57:33,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344760000] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:57:33,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:57:33,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 01:57:33,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869154681] [2023-11-29 01:57:33,036 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:57:33,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:57:33,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:33,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:57:33,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:57:33,037 INFO L87 Difference]: Start difference. First operand 638 states and 950 transitions. Second operand has 12 states, 10 states have (on average 4.2) internal successors, (42), 11 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:57:35,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:35,055 INFO L93 Difference]: Finished difference Result 795 states and 1107 transitions. [2023-11-29 01:57:35,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:57:35,055 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.2) internal successors, (42), 11 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2023-11-29 01:57:35,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:35,059 INFO L225 Difference]: With dead ends: 795 [2023-11-29 01:57:35,059 INFO L226 Difference]: Without dead ends: 794 [2023-11-29 01:57:35,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=165, Invalid=591, Unknown=0, NotChecked=0, Total=756 [2023-11-29 01:57:35,061 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 551 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:35,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 907 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 01:57:35,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2023-11-29 01:57:35,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 680. [2023-11-29 01:57:35,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 588 states have (on average 1.6462585034013606) internal successors, (968), 643 states have internal predecessors, (968), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 01:57:35,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1028 transitions. [2023-11-29 01:57:35,107 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1028 transitions. Word has length 46 [2023-11-29 01:57:35,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:35,107 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 1028 transitions. [2023-11-29 01:57:35,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.2) internal successors, (42), 11 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:57:35,107 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1028 transitions. [2023-11-29 01:57:35,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-29 01:57:35,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:35,108 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:35,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 01:57:35,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 01:57:35,309 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:35,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:35,309 INFO L85 PathProgramCache]: Analyzing trace with hash -792295989, now seen corresponding path program 1 times [2023-11-29 01:57:35,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:35,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153088755] [2023-11-29 01:57:35,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:35,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:35,316 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:35,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1150573676] [2023-11-29 01:57:35,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:35,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:35,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:35,318 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:35,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 01:57:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:35,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 01:57:35,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:35,742 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:57:35,742 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:57:37,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:37,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153088755] [2023-11-29 01:57:37,396 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:37,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150573676] [2023-11-29 01:57:37,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150573676] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:57:37,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:57:37,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 01:57:37,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640155277] [2023-11-29 01:57:37,397 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:57:37,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:57:37,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:37,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:57:37,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:57:37,398 INFO L87 Difference]: Start difference. First operand 680 states and 1028 transitions. Second operand has 12 states, 10 states have (on average 4.3) internal successors, (43), 11 states have internal predecessors, (43), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:57:39,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:39,553 INFO L93 Difference]: Finished difference Result 794 states and 1105 transitions. [2023-11-29 01:57:39,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:57:39,553 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.3) internal successors, (43), 11 states have internal predecessors, (43), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2023-11-29 01:57:39,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:39,556 INFO L225 Difference]: With dead ends: 794 [2023-11-29 01:57:39,557 INFO L226 Difference]: Without dead ends: 793 [2023-11-29 01:57:39,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=165, Invalid=591, Unknown=0, NotChecked=0, Total=756 [2023-11-29 01:57:39,557 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 723 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:39,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 847 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:57:39,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2023-11-29 01:57:39,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 680. [2023-11-29 01:57:39,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 588 states have (on average 1.6428571428571428) internal successors, (966), 643 states have internal predecessors, (966), 30 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 01:57:39,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1026 transitions. [2023-11-29 01:57:39,588 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1026 transitions. Word has length 47 [2023-11-29 01:57:39,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:39,588 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 1026 transitions. [2023-11-29 01:57:39,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.3) internal successors, (43), 11 states have internal predecessors, (43), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:57:39,588 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1026 transitions. [2023-11-29 01:57:39,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 01:57:39,588 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:39,589 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:39,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 01:57:39,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 01:57:39,789 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:39,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:39,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1804993138, now seen corresponding path program 1 times [2023-11-29 01:57:39,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:39,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867680989] [2023-11-29 01:57:39,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:39,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:39,794 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:39,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1893968097] [2023-11-29 01:57:39,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:39,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:39,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:39,795 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:39,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 01:57:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:39,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:57:39,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:39,919 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 01:57:39,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:39,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:39,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867680989] [2023-11-29 01:57:39,920 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:39,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893968097] [2023-11-29 01:57:39,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893968097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:39,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:39,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:57:39,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69338509] [2023-11-29 01:57:39,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:39,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:57:39,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:39,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:57:39,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:57:39,921 INFO L87 Difference]: Start difference. First operand 680 states and 1026 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:57:40,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:40,322 INFO L93 Difference]: Finished difference Result 754 states and 1089 transitions. [2023-11-29 01:57:40,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:57:40,323 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2023-11-29 01:57:40,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:40,326 INFO L225 Difference]: With dead ends: 754 [2023-11-29 01:57:40,326 INFO L226 Difference]: Without dead ends: 753 [2023-11-29 01:57:40,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:57:40,327 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 336 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:40,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 414 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:57:40,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2023-11-29 01:57:40,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 716. [2023-11-29 01:57:40,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 620 states have (on average 1.6306451612903226) internal successors, (1011), 675 states have internal predecessors, (1011), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 01:57:40,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1079 transitions. [2023-11-29 01:57:40,359 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1079 transitions. Word has length 49 [2023-11-29 01:57:40,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:40,359 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 1079 transitions. [2023-11-29 01:57:40,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:57:40,359 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1079 transitions. [2023-11-29 01:57:40,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 01:57:40,360 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:40,360 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:40,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 01:57:40,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-29 01:57:40,560 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:40,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:40,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1208628210, now seen corresponding path program 1 times [2023-11-29 01:57:40,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:40,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829435152] [2023-11-29 01:57:40,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:40,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:40,566 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:40,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116072812] [2023-11-29 01:57:40,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:40,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:40,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:40,567 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:40,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 01:57:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:40,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:57:40,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:40,832 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:57:40,833 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:57:41,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:41,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829435152] [2023-11-29 01:57:41,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:41,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116072812] [2023-11-29 01:57:41,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116072812] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:57:41,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:57:41,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 01:57:41,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614199082] [2023-11-29 01:57:41,034 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:57:41,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:57:41,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:41,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:57:41,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:57:41,035 INFO L87 Difference]: Start difference. First operand 716 states and 1079 transitions. Second operand has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:57:42,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:42,361 INFO L93 Difference]: Finished difference Result 860 states and 1222 transitions. [2023-11-29 01:57:42,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:57:42,362 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2023-11-29 01:57:42,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:42,365 INFO L225 Difference]: With dead ends: 860 [2023-11-29 01:57:42,365 INFO L226 Difference]: Without dead ends: 858 [2023-11-29 01:57:42,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:57:42,366 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 452 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:42,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 508 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 01:57:42,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2023-11-29 01:57:42,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 776. [2023-11-29 01:57:42,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 676 states have (on average 1.6464497041420119) internal successors, (1113), 731 states have internal predecessors, (1113), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 01:57:42,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1189 transitions. [2023-11-29 01:57:42,402 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1189 transitions. Word has length 48 [2023-11-29 01:57:42,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:42,402 INFO L495 AbstractCegarLoop]: Abstraction has 776 states and 1189 transitions. [2023-11-29 01:57:42,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:57:42,403 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1189 transitions. [2023-11-29 01:57:42,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 01:57:42,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:42,403 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:42,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-29 01:57:42,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 01:57:42,604 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:42,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:42,604 INFO L85 PathProgramCache]: Analyzing trace with hash -120212313, now seen corresponding path program 1 times [2023-11-29 01:57:42,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:42,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580271486] [2023-11-29 01:57:42,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:42,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:42,609 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:42,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [689591484] [2023-11-29 01:57:42,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:42,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:42,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:42,610 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:42,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 01:57:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:42,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:57:42,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:42,738 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 01:57:42,738 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:42,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:42,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580271486] [2023-11-29 01:57:42,739 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:42,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689591484] [2023-11-29 01:57:42,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689591484] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:42,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:42,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:57:42,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902487315] [2023-11-29 01:57:42,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:42,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:57:42,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:42,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:57:42,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:57:42,740 INFO L87 Difference]: Start difference. First operand 776 states and 1189 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:57:43,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:43,184 INFO L93 Difference]: Finished difference Result 814 states and 1197 transitions. [2023-11-29 01:57:43,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:57:43,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2023-11-29 01:57:43,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:43,187 INFO L225 Difference]: With dead ends: 814 [2023-11-29 01:57:43,187 INFO L226 Difference]: Without dead ends: 813 [2023-11-29 01:57:43,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:57:43,188 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 331 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:43,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 417 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:57:43,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2023-11-29 01:57:43,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 776. [2023-11-29 01:57:43,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 676 states have (on average 1.643491124260355) internal successors, (1111), 731 states have internal predecessors, (1111), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 01:57:43,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1187 transitions. [2023-11-29 01:57:43,225 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1187 transitions. Word has length 50 [2023-11-29 01:57:43,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:43,226 INFO L495 AbstractCegarLoop]: Abstraction has 776 states and 1187 transitions. [2023-11-29 01:57:43,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:57:43,226 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1187 transitions. [2023-11-29 01:57:43,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 01:57:43,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:43,226 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:43,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 01:57:43,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:43,427 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:43,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:43,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1187231059, now seen corresponding path program 1 times [2023-11-29 01:57:43,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:43,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283867454] [2023-11-29 01:57:43,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:43,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:43,432 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:43,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [578940412] [2023-11-29 01:57:43,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:43,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:43,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:43,434 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:43,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 01:57:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:43,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:57:43,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:43,635 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:57:43,635 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:57:44,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:44,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283867454] [2023-11-29 01:57:44,091 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:44,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578940412] [2023-11-29 01:57:44,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578940412] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:57:44,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:57:44,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 01:57:44,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745665601] [2023-11-29 01:57:44,092 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:57:44,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:57:44,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:44,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:57:44,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:57:44,093 INFO L87 Difference]: Start difference. First operand 776 states and 1187 transitions. Second operand has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:57:45,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:45,337 INFO L93 Difference]: Finished difference Result 860 states and 1216 transitions. [2023-11-29 01:57:45,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:57:45,337 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2023-11-29 01:57:45,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:45,342 INFO L225 Difference]: With dead ends: 860 [2023-11-29 01:57:45,342 INFO L226 Difference]: Without dead ends: 858 [2023-11-29 01:57:45,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:57:45,343 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 401 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:45,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 712 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 01:57:45,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2023-11-29 01:57:45,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 777. [2023-11-29 01:57:45,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 677 states have (on average 1.638109305760709) internal successors, (1109), 732 states have internal predecessors, (1109), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 01:57:45,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1185 transitions. [2023-11-29 01:57:45,377 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1185 transitions. Word has length 49 [2023-11-29 01:57:45,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:45,378 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 1185 transitions. [2023-11-29 01:57:45,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:57:45,378 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1185 transitions. [2023-11-29 01:57:45,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 01:57:45,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:45,378 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:45,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 01:57:45,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 01:57:45,579 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:45,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:45,579 INFO L85 PathProgramCache]: Analyzing trace with hash 568385712, now seen corresponding path program 1 times [2023-11-29 01:57:45,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:45,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270374795] [2023-11-29 01:57:45,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:45,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:45,585 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:45,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [433268396] [2023-11-29 01:57:45,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:45,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:45,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:45,587 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:45,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 01:57:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:45,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:57:45,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:45,695 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 01:57:45,695 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:57:45,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:45,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270374795] [2023-11-29 01:57:45,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:45,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433268396] [2023-11-29 01:57:45,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433268396] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:57:45,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:57:45,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 01:57:45,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145802828] [2023-11-29 01:57:45,746 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:57:45,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:57:45,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:45,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:57:45,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:57:45,747 INFO L87 Difference]: Start difference. First operand 777 states and 1185 transitions. Second operand has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 01:57:46,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:46,297 INFO L93 Difference]: Finished difference Result 810 states and 1189 transitions. [2023-11-29 01:57:46,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:57:46,298 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 51 [2023-11-29 01:57:46,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:46,302 INFO L225 Difference]: With dead ends: 810 [2023-11-29 01:57:46,302 INFO L226 Difference]: Without dead ends: 809 [2023-11-29 01:57:46,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:57:46,303 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 402 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:46,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 512 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:57:46,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2023-11-29 01:57:46,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 777. [2023-11-29 01:57:46,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 677 states have (on average 1.6351550960118169) internal successors, (1107), 732 states have internal predecessors, (1107), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 01:57:46,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1183 transitions. [2023-11-29 01:57:46,337 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1183 transitions. Word has length 51 [2023-11-29 01:57:46,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:46,337 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 1183 transitions. [2023-11-29 01:57:46,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 01:57:46,337 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1183 transitions. [2023-11-29 01:57:46,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 01:57:46,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:46,338 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:46,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2023-11-29 01:57:46,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 01:57:46,538 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:46,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:46,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1850542932, now seen corresponding path program 1 times [2023-11-29 01:57:46,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:46,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414549380] [2023-11-29 01:57:46,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:46,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:46,543 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:46,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [954854153] [2023-11-29 01:57:46,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:46,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:46,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:46,545 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:46,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 01:57:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:46,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 01:57:46,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:46,871 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:57:46,871 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:57:49,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:49,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414549380] [2023-11-29 01:57:49,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:49,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954854153] [2023-11-29 01:57:49,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954854153] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:57:49,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:57:49,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 01:57:49,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999863094] [2023-11-29 01:57:49,099 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:57:49,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:57:49,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:49,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:57:49,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:57:49,100 INFO L87 Difference]: Start difference. First operand 777 states and 1183 transitions. Second operand has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:57:51,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:51,620 INFO L93 Difference]: Finished difference Result 849 states and 1205 transitions. [2023-11-29 01:57:51,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:57:51,620 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2023-11-29 01:57:51,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:51,625 INFO L225 Difference]: With dead ends: 849 [2023-11-29 01:57:51,625 INFO L226 Difference]: Without dead ends: 848 [2023-11-29 01:57:51,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2023-11-29 01:57:51,626 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 561 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:51,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 925 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 01:57:51,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2023-11-29 01:57:51,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 777. [2023-11-29 01:57:51,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 677 states have (on average 1.6322008862629247) internal successors, (1105), 732 states have internal predecessors, (1105), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 01:57:51,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1181 transitions. [2023-11-29 01:57:51,670 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1181 transitions. Word has length 50 [2023-11-29 01:57:51,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:51,671 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 1181 transitions. [2023-11-29 01:57:51,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:57:51,671 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1181 transitions. [2023-11-29 01:57:51,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 01:57:51,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:51,672 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:51,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 01:57:51,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 01:57:51,872 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:51,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:51,873 INFO L85 PathProgramCache]: Analyzing trace with hash 440088009, now seen corresponding path program 1 times [2023-11-29 01:57:51,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:51,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533558204] [2023-11-29 01:57:51,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:51,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:51,879 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:51,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027599610] [2023-11-29 01:57:51,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:51,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:51,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:51,881 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:51,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 01:57:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:51,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:57:51,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:52,025 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 01:57:52,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:52,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:52,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533558204] [2023-11-29 01:57:52,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:52,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027599610] [2023-11-29 01:57:52,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027599610] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:52,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:52,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:57:52,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561582] [2023-11-29 01:57:52,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:52,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:57:52,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:52,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:57:52,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:57:52,027 INFO L87 Difference]: Start difference. First operand 777 states and 1181 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:57:52,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:52,920 INFO L93 Difference]: Finished difference Result 809 states and 1185 transitions. [2023-11-29 01:57:52,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:57:52,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2023-11-29 01:57:52,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:52,924 INFO L225 Difference]: With dead ends: 809 [2023-11-29 01:57:52,924 INFO L226 Difference]: Without dead ends: 808 [2023-11-29 01:57:52,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:57:52,925 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 348 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:52,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 309 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 01:57:52,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2023-11-29 01:57:52,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 777. [2023-11-29 01:57:52,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 677 states have (on average 1.6292466765140325) internal successors, (1103), 732 states have internal predecessors, (1103), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 01:57:52,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1179 transitions. [2023-11-29 01:57:52,960 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1179 transitions. Word has length 52 [2023-11-29 01:57:52,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:52,960 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 1179 transitions. [2023-11-29 01:57:52,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:57:52,960 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1179 transitions. [2023-11-29 01:57:52,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 01:57:52,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:52,961 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:52,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 01:57:53,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 01:57:53,162 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:53,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:53,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1532256143, now seen corresponding path program 1 times [2023-11-29 01:57:53,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:53,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156198592] [2023-11-29 01:57:53,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:53,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:53,168 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:53,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [744051776] [2023-11-29 01:57:53,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:53,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:53,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:53,169 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:53,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 01:57:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:53,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:57:53,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:53,344 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:57:53,344 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:57:54,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:54,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156198592] [2023-11-29 01:57:54,175 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:54,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744051776] [2023-11-29 01:57:54,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744051776] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:57:54,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:57:54,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 01:57:54,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410306213] [2023-11-29 01:57:54,176 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:57:54,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:57:54,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:54,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:57:54,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:57:54,177 INFO L87 Difference]: Start difference. First operand 777 states and 1179 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:57:55,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:55,401 INFO L93 Difference]: Finished difference Result 884 states and 1236 transitions. [2023-11-29 01:57:55,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:57:55,401 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2023-11-29 01:57:55,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:55,406 INFO L225 Difference]: With dead ends: 884 [2023-11-29 01:57:55,406 INFO L226 Difference]: Without dead ends: 882 [2023-11-29 01:57:55,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:57:55,407 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 296 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:55,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 889 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 01:57:55,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2023-11-29 01:57:55,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 792. [2023-11-29 01:57:55,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 692 states have (on average 1.6286127167630058) internal successors, (1127), 747 states have internal predecessors, (1127), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 01:57:55,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1203 transitions. [2023-11-29 01:57:55,444 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1203 transitions. Word has length 51 [2023-11-29 01:57:55,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:55,444 INFO L495 AbstractCegarLoop]: Abstraction has 792 states and 1203 transitions. [2023-11-29 01:57:55,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:57:55,444 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1203 transitions. [2023-11-29 01:57:55,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 01:57:55,444 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:55,444 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:55,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 01:57:55,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2023-11-29 01:57:55,645 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:55,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:55,645 INFO L85 PathProgramCache]: Analyzing trace with hash 454483138, now seen corresponding path program 1 times [2023-11-29 01:57:55,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:55,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328679109] [2023-11-29 01:57:55,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:55,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:55,651 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:55,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261780414] [2023-11-29 01:57:55,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:55,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:55,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:55,652 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:55,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 01:57:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:55,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 01:57:55,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:55,778 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 01:57:55,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:57:55,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:55,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328679109] [2023-11-29 01:57:55,778 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:57:55,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261780414] [2023-11-29 01:57:55,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261780414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:55,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:55,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:57:55,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732885471] [2023-11-29 01:57:55,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:55,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:57:55,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:55,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:57:55,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:57:55,780 INFO L87 Difference]: Start difference. First operand 792 states and 1203 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:57:56,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:57:56,184 INFO L93 Difference]: Finished difference Result 860 states and 1259 transitions. [2023-11-29 01:57:56,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:57:56,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2023-11-29 01:57:56,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:57:56,188 INFO L225 Difference]: With dead ends: 860 [2023-11-29 01:57:56,188 INFO L226 Difference]: Without dead ends: 857 [2023-11-29 01:57:56,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:57:56,189 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 277 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:57:56,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 489 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:57:56,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2023-11-29 01:57:56,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 823. [2023-11-29 01:57:56,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 719 states have (on average 1.6147426981919333) internal successors, (1161), 774 states have internal predecessors, (1161), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 01:57:56,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1245 transitions. [2023-11-29 01:57:56,236 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1245 transitions. Word has length 58 [2023-11-29 01:57:56,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:57:56,236 INFO L495 AbstractCegarLoop]: Abstraction has 823 states and 1245 transitions. [2023-11-29 01:57:56,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:57:56,236 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1245 transitions. [2023-11-29 01:57:56,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 01:57:56,236 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:57:56,236 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:56,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2023-11-29 01:57:56,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:56,437 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:57:56,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:56,437 INFO L85 PathProgramCache]: Analyzing trace with hash 673953530, now seen corresponding path program 1 times [2023-11-29 01:57:56,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:56,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654484548] [2023-11-29 01:57:56,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:56,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:56,442 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:57:56,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [176582273] [2023-11-29 01:57:56,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:56,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:57:56,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:57:56,443 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:57:56,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 01:57:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:56,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:57:56,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:57:56,694 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:57:56,694 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:58:05,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:05,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654484548] [2023-11-29 01:58:05,036 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:05,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176582273] [2023-11-29 01:58:05,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176582273] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:58:05,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:58:05,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 01:58:05,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269585340] [2023-11-29 01:58:05,036 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:58:05,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:58:05,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:05,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:58:05,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=113, Unknown=2, NotChecked=0, Total=156 [2023-11-29 01:58:05,037 INFO L87 Difference]: Start difference. First operand 823 states and 1245 transitions. Second operand has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:58:06,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:06,134 INFO L93 Difference]: Finished difference Result 921 states and 1304 transitions. [2023-11-29 01:58:06,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:58:06,134 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 57 [2023-11-29 01:58:06,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:06,138 INFO L225 Difference]: With dead ends: 921 [2023-11-29 01:58:06,138 INFO L226 Difference]: Without dead ends: 919 [2023-11-29 01:58:06,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=45, Invalid=135, Unknown=2, NotChecked=0, Total=182 [2023-11-29 01:58:06,139 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 513 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:06,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 813 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 01:58:06,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-11-29 01:58:06,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 824. [2023-11-29 01:58:06,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 720 states have (on average 1.6097222222222223) internal successors, (1159), 775 states have internal predecessors, (1159), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 01:58:06,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1243 transitions. [2023-11-29 01:58:06,182 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1243 transitions. Word has length 57 [2023-11-29 01:58:06,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:06,183 INFO L495 AbstractCegarLoop]: Abstraction has 824 states and 1243 transitions. [2023-11-29 01:58:06,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:58:06,183 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1243 transitions. [2023-11-29 01:58:06,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 01:58:06,183 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:58:06,183 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:06,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 01:58:06,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:06,384 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:58:06,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:06,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1204075516, now seen corresponding path program 1 times [2023-11-29 01:58:06,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:06,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165761735] [2023-11-29 01:58:06,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:06,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:06,390 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:58:06,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [447421176] [2023-11-29 01:58:06,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:06,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:06,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:58:06,391 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:58:06,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 01:58:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:06,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:58:06,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:06,512 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:58:06,512 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:58:06,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:06,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165761735] [2023-11-29 01:58:06,512 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:06,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447421176] [2023-11-29 01:58:06,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447421176] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:58:06,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:58:06,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:58:06,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998268457] [2023-11-29 01:58:06,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:58:06,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:58:06,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:06,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:58:06,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:58:06,513 INFO L87 Difference]: Start difference. First operand 824 states and 1243 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:58:07,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:07,438 INFO L93 Difference]: Finished difference Result 862 states and 1247 transitions. [2023-11-29 01:58:07,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:58:07,439 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2023-11-29 01:58:07,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:07,442 INFO L225 Difference]: With dead ends: 862 [2023-11-29 01:58:07,442 INFO L226 Difference]: Without dead ends: 861 [2023-11-29 01:58:07,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:58:07,443 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 458 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:07,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 442 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 01:58:07,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2023-11-29 01:58:07,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 824. [2023-11-29 01:58:07,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 720 states have (on average 1.6083333333333334) internal successors, (1158), 775 states have internal predecessors, (1158), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 01:58:07,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1242 transitions. [2023-11-29 01:58:07,488 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1242 transitions. Word has length 59 [2023-11-29 01:58:07,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:07,488 INFO L495 AbstractCegarLoop]: Abstraction has 824 states and 1242 transitions. [2023-11-29 01:58:07,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:58:07,488 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1242 transitions. [2023-11-29 01:58:07,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 01:58:07,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:58:07,488 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:07,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2023-11-29 01:58:07,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:07,689 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:58:07,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:07,689 INFO L85 PathProgramCache]: Analyzing trace with hash -582276946, now seen corresponding path program 1 times [2023-11-29 01:58:07,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:07,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753290846] [2023-11-29 01:58:07,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:07,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:07,694 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:58:07,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [199911200] [2023-11-29 01:58:07,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:07,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:07,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:58:07,695 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:58:07,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 01:58:07,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:07,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:58:07,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:07,974 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:58:07,974 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:58:14,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:14,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753290846] [2023-11-29 01:58:14,901 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:14,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199911200] [2023-11-29 01:58:14,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199911200] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:58:14,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:58:14,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 01:58:14,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253418314] [2023-11-29 01:58:14,901 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:58:14,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:58:14,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:14,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:58:14,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=112, Unknown=2, NotChecked=0, Total=156 [2023-11-29 01:58:14,902 INFO L87 Difference]: Start difference. First operand 824 states and 1242 transitions. Second operand has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:58:16,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:16,263 INFO L93 Difference]: Finished difference Result 921 states and 1299 transitions. [2023-11-29 01:58:16,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:58:16,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2023-11-29 01:58:16,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:16,269 INFO L225 Difference]: With dead ends: 921 [2023-11-29 01:58:16,269 INFO L226 Difference]: Without dead ends: 919 [2023-11-29 01:58:16,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=57, Invalid=151, Unknown=2, NotChecked=0, Total=210 [2023-11-29 01:58:16,270 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 589 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:16,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 585 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 01:58:16,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-11-29 01:58:16,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 825. [2023-11-29 01:58:16,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 721 states have (on average 1.6033287101248266) internal successors, (1156), 776 states have internal predecessors, (1156), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 01:58:16,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1240 transitions. [2023-11-29 01:58:16,311 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1240 transitions. Word has length 58 [2023-11-29 01:58:16,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:16,311 INFO L495 AbstractCegarLoop]: Abstraction has 825 states and 1240 transitions. [2023-11-29 01:58:16,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:58:16,311 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1240 transitions. [2023-11-29 01:58:16,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 01:58:16,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:58:16,312 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:16,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 01:58:16,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 01:58:16,513 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:58:16,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:16,513 INFO L85 PathProgramCache]: Analyzing trace with hash -870716036, now seen corresponding path program 1 times [2023-11-29 01:58:16,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:16,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825722816] [2023-11-29 01:58:16,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:16,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:16,518 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:58:16,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1830052582] [2023-11-29 01:58:16,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:16,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:16,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:58:16,520 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:58:16,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 01:58:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:16,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 01:58:16,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:16,908 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:58:16,908 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:58:21,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:21,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825722816] [2023-11-29 01:58:21,465 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:21,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830052582] [2023-11-29 01:58:21,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830052582] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:58:21,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:58:21,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 01:58:21,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423076260] [2023-11-29 01:58:21,465 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:58:21,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:58:21,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:21,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:58:21,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=348, Unknown=1, NotChecked=0, Total=420 [2023-11-29 01:58:21,467 INFO L87 Difference]: Start difference. First operand 825 states and 1240 transitions. Second operand has 13 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:58:23,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:23,016 INFO L93 Difference]: Finished difference Result 904 states and 1278 transitions. [2023-11-29 01:58:23,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:58:23,017 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 59 [2023-11-29 01:58:23,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:23,020 INFO L225 Difference]: With dead ends: 904 [2023-11-29 01:58:23,020 INFO L226 Difference]: Without dead ends: 903 [2023-11-29 01:58:23,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=143, Invalid=668, Unknown=1, NotChecked=0, Total=812 [2023-11-29 01:58:23,021 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 565 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:23,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 841 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1204 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 01:58:23,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2023-11-29 01:58:23,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 825. [2023-11-29 01:58:23,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 721 states have (on average 1.6005547850208044) internal successors, (1154), 776 states have internal predecessors, (1154), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 01:58:23,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1238 transitions. [2023-11-29 01:58:23,069 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1238 transitions. Word has length 59 [2023-11-29 01:58:23,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:23,070 INFO L495 AbstractCegarLoop]: Abstraction has 825 states and 1238 transitions. [2023-11-29 01:58:23,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:58:23,070 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1238 transitions. [2023-11-29 01:58:23,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 01:58:23,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:58:23,071 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:23,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2023-11-29 01:58:23,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:23,271 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:58:23,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:23,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1222393232, now seen corresponding path program 1 times [2023-11-29 01:58:23,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:23,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811668035] [2023-11-29 01:58:23,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:23,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:23,276 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:58:23,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1054494930] [2023-11-29 01:58:23,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:23,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:23,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:58:23,277 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:58:23,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 01:58:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:23,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 01:58:23,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:23,649 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:58:23,649 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:58:33,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:33,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811668035] [2023-11-29 01:58:33,855 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:33,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054494930] [2023-11-29 01:58:33,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054494930] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:58:33,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:58:33,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 01:58:33,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731359976] [2023-11-29 01:58:33,856 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:58:33,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:58:33,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:33,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:58:33,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=347, Unknown=2, NotChecked=0, Total=420 [2023-11-29 01:58:33,857 INFO L87 Difference]: Start difference. First operand 825 states and 1238 transitions. Second operand has 13 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:58:36,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:36,422 INFO L93 Difference]: Finished difference Result 903 states and 1276 transitions. [2023-11-29 01:58:36,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:58:36,422 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 60 [2023-11-29 01:58:36,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:36,426 INFO L225 Difference]: With dead ends: 903 [2023-11-29 01:58:36,426 INFO L226 Difference]: Without dead ends: 902 [2023-11-29 01:58:36,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=143, Invalid=667, Unknown=2, NotChecked=0, Total=812 [2023-11-29 01:58:36,427 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 517 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:36,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 883 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:58:36,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2023-11-29 01:58:36,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 825. [2023-11-29 01:58:36,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 721 states have (on average 1.5977808599167822) internal successors, (1152), 776 states have internal predecessors, (1152), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 01:58:36,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1236 transitions. [2023-11-29 01:58:36,470 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1236 transitions. Word has length 60 [2023-11-29 01:58:36,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:36,470 INFO L495 AbstractCegarLoop]: Abstraction has 825 states and 1236 transitions. [2023-11-29 01:58:36,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:58:36,470 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1236 transitions. [2023-11-29 01:58:36,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 01:58:36,471 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:58:36,471 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:36,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 01:58:36,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 01:58:36,671 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:58:36,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:36,672 INFO L85 PathProgramCache]: Analyzing trace with hash 760515582, now seen corresponding path program 1 times [2023-11-29 01:58:36,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:36,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555503444] [2023-11-29 01:58:36,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:36,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:36,677 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:58:36,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [696196630] [2023-11-29 01:58:36,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:36,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:36,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:58:36,678 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:58:36,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 01:58:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:36,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:58:36,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:36,907 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:58:36,907 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:58:37,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:37,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555503444] [2023-11-29 01:58:37,046 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:37,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696196630] [2023-11-29 01:58:37,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696196630] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:58:37,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:58:37,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 01:58:37,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055563739] [2023-11-29 01:58:37,046 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:58:37,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:58:37,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:37,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:58:37,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:58:37,047 INFO L87 Difference]: Start difference. First operand 825 states and 1236 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:58:38,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:38,816 INFO L93 Difference]: Finished difference Result 952 states and 1320 transitions. [2023-11-29 01:58:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:58:38,816 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 61 [2023-11-29 01:58:38,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:38,821 INFO L225 Difference]: With dead ends: 952 [2023-11-29 01:58:38,821 INFO L226 Difference]: Without dead ends: 950 [2023-11-29 01:58:38,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:58:38,822 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 347 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:38,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 986 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 01:58:38,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2023-11-29 01:58:38,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 833. [2023-11-29 01:58:38,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 728 states have (on average 1.5892857142857142) internal successors, (1157), 783 states have internal predecessors, (1157), 43 states have call successors, (43), 6 states have call predecessors, (43), 6 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-29 01:58:38,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1243 transitions. [2023-11-29 01:58:38,864 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1243 transitions. Word has length 61 [2023-11-29 01:58:38,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:38,864 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1243 transitions. [2023-11-29 01:58:38,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:58:38,864 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1243 transitions. [2023-11-29 01:58:38,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 01:58:38,865 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:58:38,865 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:38,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 01:58:39,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 01:58:39,065 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:58:39,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:39,066 INFO L85 PathProgramCache]: Analyzing trace with hash 2101146674, now seen corresponding path program 1 times [2023-11-29 01:58:39,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:39,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576003758] [2023-11-29 01:58:39,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:39,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:39,072 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:58:39,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1387572427] [2023-11-29 01:58:39,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:39,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:39,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:58:39,073 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:58:39,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 01:58:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:39,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 01:58:39,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:39,342 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:58:39,342 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:58:39,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:39,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576003758] [2023-11-29 01:58:39,615 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:39,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387572427] [2023-11-29 01:58:39,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387572427] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:58:39,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:58:39,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 01:58:39,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111823816] [2023-11-29 01:58:39,615 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:58:39,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:58:39,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:39,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:58:39,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:58:39,616 INFO L87 Difference]: Start difference. First operand 833 states and 1243 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 01:58:40,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:40,896 INFO L93 Difference]: Finished difference Result 901 states and 1269 transitions. [2023-11-29 01:58:40,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:58:40,897 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 62 [2023-11-29 01:58:40,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:40,900 INFO L225 Difference]: With dead ends: 901 [2023-11-29 01:58:40,900 INFO L226 Difference]: Without dead ends: 900 [2023-11-29 01:58:40,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:58:40,900 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 435 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:40,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 559 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 01:58:40,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2023-11-29 01:58:40,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 833. [2023-11-29 01:58:40,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 728 states have (on average 1.5865384615384615) internal successors, (1155), 783 states have internal predecessors, (1155), 43 states have call successors, (43), 6 states have call predecessors, (43), 6 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-29 01:58:40,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1241 transitions. [2023-11-29 01:58:40,943 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1241 transitions. Word has length 62 [2023-11-29 01:58:40,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:40,943 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1241 transitions. [2023-11-29 01:58:40,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 01:58:40,943 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1241 transitions. [2023-11-29 01:58:40,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 01:58:40,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:58:40,944 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:40,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 01:58:41,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 01:58:41,144 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:58:41,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:41,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1311466038, now seen corresponding path program 1 times [2023-11-29 01:58:41,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:41,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919161782] [2023-11-29 01:58:41,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:41,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:41,150 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:58:41,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1566983653] [2023-11-29 01:58:41,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:41,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:41,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:58:41,152 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:58:41,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 01:58:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:41,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:58:41,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:41,255 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:58:41,255 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:58:41,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:41,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919161782] [2023-11-29 01:58:41,255 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:41,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566983653] [2023-11-29 01:58:41,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566983653] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:58:41,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:58:41,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:58:41,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460130863] [2023-11-29 01:58:41,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:58:41,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:58:41,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:41,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:58:41,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:58:41,257 INFO L87 Difference]: Start difference. First operand 833 states and 1241 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:58:42,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:42,031 INFO L93 Difference]: Finished difference Result 901 states and 1284 transitions. [2023-11-29 01:58:42,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:58:42,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2023-11-29 01:58:42,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:42,035 INFO L225 Difference]: With dead ends: 901 [2023-11-29 01:58:42,035 INFO L226 Difference]: Without dead ends: 899 [2023-11-29 01:58:42,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:58:42,036 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 343 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:42,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 342 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:58:42,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2023-11-29 01:58:42,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 834. [2023-11-29 01:58:42,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 729 states have (on average 1.5816186556927299) internal successors, (1153), 784 states have internal predecessors, (1153), 43 states have call successors, (43), 6 states have call predecessors, (43), 6 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-29 01:58:42,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1239 transitions. [2023-11-29 01:58:42,083 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1239 transitions. Word has length 65 [2023-11-29 01:58:42,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:42,083 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1239 transitions. [2023-11-29 01:58:42,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:58:42,083 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1239 transitions. [2023-11-29 01:58:42,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 01:58:42,084 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:58:42,084 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:42,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 01:58:42,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 01:58:42,284 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:58:42,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:42,285 INFO L85 PathProgramCache]: Analyzing trace with hash 2000741645, now seen corresponding path program 1 times [2023-11-29 01:58:42,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:42,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619450231] [2023-11-29 01:58:42,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:42,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:42,290 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:58:42,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [674200309] [2023-11-29 01:58:42,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:42,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:42,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:58:42,291 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:58:42,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 01:58:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:42,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:58:42,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:42,393 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:58:42,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:58:42,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:42,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619450231] [2023-11-29 01:58:42,394 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:42,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674200309] [2023-11-29 01:58:42,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674200309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:58:42,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:58:42,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:58:42,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614248033] [2023-11-29 01:58:42,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:58:42,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:58:42,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:42,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:58:42,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:58:42,395 INFO L87 Difference]: Start difference. First operand 834 states and 1239 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:58:43,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:43,351 INFO L93 Difference]: Finished difference Result 901 states and 1280 transitions. [2023-11-29 01:58:43,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:58:43,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2023-11-29 01:58:43,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:43,354 INFO L225 Difference]: With dead ends: 901 [2023-11-29 01:58:43,355 INFO L226 Difference]: Without dead ends: 899 [2023-11-29 01:58:43,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:58:43,355 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 336 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:43,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 346 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 01:58:43,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2023-11-29 01:58:43,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 835. [2023-11-29 01:58:43,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 730 states have (on average 1.5767123287671232) internal successors, (1151), 785 states have internal predecessors, (1151), 43 states have call successors, (43), 6 states have call predecessors, (43), 6 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-29 01:58:43,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1237 transitions. [2023-11-29 01:58:43,400 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1237 transitions. Word has length 66 [2023-11-29 01:58:43,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:43,400 INFO L495 AbstractCegarLoop]: Abstraction has 835 states and 1237 transitions. [2023-11-29 01:58:43,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:58:43,400 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1237 transitions. [2023-11-29 01:58:43,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 01:58:43,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:58:43,401 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:43,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 01:58:43,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:43,602 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:58:43,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:43,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1432623460, now seen corresponding path program 1 times [2023-11-29 01:58:43,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:43,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437523204] [2023-11-29 01:58:43,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:43,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:43,608 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:58:43,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1226904753] [2023-11-29 01:58:43,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:43,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:43,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:58:43,609 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:58:43,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 01:58:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:43,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:58:43,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:43,693 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:58:43,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:58:43,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:43,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437523204] [2023-11-29 01:58:43,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:43,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226904753] [2023-11-29 01:58:43,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226904753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:58:43,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:58:43,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:58:43,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140452776] [2023-11-29 01:58:43,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:58:43,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:58:43,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:43,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:58:43,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:58:43,695 INFO L87 Difference]: Start difference. First operand 835 states and 1237 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:58:43,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:43,799 INFO L93 Difference]: Finished difference Result 1042 states and 1566 transitions. [2023-11-29 01:58:43,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:58:43,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 68 [2023-11-29 01:58:43,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:43,802 INFO L225 Difference]: With dead ends: 1042 [2023-11-29 01:58:43,802 INFO L226 Difference]: Without dead ends: 1041 [2023-11-29 01:58:43,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:58:43,803 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 33 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:43,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 252 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:58:43,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2023-11-29 01:58:43,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 989. [2023-11-29 01:58:43,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 864 states have (on average 1.5960648148148149) internal successors, (1379), 919 states have internal predecessors, (1379), 63 states have call successors, (63), 6 states have call predecessors, (63), 6 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-11-29 01:58:43,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1505 transitions. [2023-11-29 01:58:43,866 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1505 transitions. Word has length 68 [2023-11-29 01:58:43,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:43,866 INFO L495 AbstractCegarLoop]: Abstraction has 989 states and 1505 transitions. [2023-11-29 01:58:43,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:58:43,866 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1505 transitions. [2023-11-29 01:58:43,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 01:58:43,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:58:43,867 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:43,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2023-11-29 01:58:44,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:44,067 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:58:44,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:44,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1461654149, now seen corresponding path program 1 times [2023-11-29 01:58:44,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:44,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580380468] [2023-11-29 01:58:44,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:44,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:44,072 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:58:44,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972791674] [2023-11-29 01:58:44,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:44,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:44,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:58:44,073 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:58:44,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 01:58:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:44,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:58:44,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:44,195 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:58:44,195 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:58:44,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:44,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580380468] [2023-11-29 01:58:44,195 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:44,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972791674] [2023-11-29 01:58:44,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972791674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:58:44,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:58:44,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:58:44,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585922762] [2023-11-29 01:58:44,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:58:44,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:58:44,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:44,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:58:44,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:58:44,197 INFO L87 Difference]: Start difference. First operand 989 states and 1505 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:58:44,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:44,970 INFO L93 Difference]: Finished difference Result 1127 states and 1648 transitions. [2023-11-29 01:58:44,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:58:44,970 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 69 [2023-11-29 01:58:44,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:44,973 INFO L225 Difference]: With dead ends: 1127 [2023-11-29 01:58:44,973 INFO L226 Difference]: Without dead ends: 1126 [2023-11-29 01:58:44,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:58:44,974 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 362 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:44,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 457 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:58:44,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2023-11-29 01:58:45,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1065. [2023-11-29 01:58:45,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 932 states have (on average 1.582618025751073) internal successors, (1475), 987 states have internal predecessors, (1475), 71 states have call successors, (71), 6 states have call predecessors, (71), 6 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2023-11-29 01:58:45,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1617 transitions. [2023-11-29 01:58:45,041 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1617 transitions. Word has length 69 [2023-11-29 01:58:45,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:45,041 INFO L495 AbstractCegarLoop]: Abstraction has 1065 states and 1617 transitions. [2023-11-29 01:58:45,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:58:45,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1617 transitions. [2023-11-29 01:58:45,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 01:58:45,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:58:45,042 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:45,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 01:58:45,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:45,242 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:58:45,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:45,243 INFO L85 PathProgramCache]: Analyzing trace with hash 139900646, now seen corresponding path program 1 times [2023-11-29 01:58:45,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:45,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765836703] [2023-11-29 01:58:45,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:45,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:45,247 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:58:45,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [47077202] [2023-11-29 01:58:45,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:45,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:45,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:58:45,248 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:58:45,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 01:58:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:45,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:58:45,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:45,410 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 01:58:45,410 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:58:45,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:45,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765836703] [2023-11-29 01:58:45,748 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:45,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47077202] [2023-11-29 01:58:45,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47077202] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:58:45,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:58:45,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 01:58:45,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386539317] [2023-11-29 01:58:45,749 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:58:45,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:58:45,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:45,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:58:45,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:58:45,750 INFO L87 Difference]: Start difference. First operand 1065 states and 1617 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 01:58:48,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:48,254 INFO L93 Difference]: Finished difference Result 1763 states and 2454 transitions. [2023-11-29 01:58:48,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:58:48,255 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 68 [2023-11-29 01:58:48,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:48,258 INFO L225 Difference]: With dead ends: 1763 [2023-11-29 01:58:48,258 INFO L226 Difference]: Without dead ends: 1761 [2023-11-29 01:58:48,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2023-11-29 01:58:48,260 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 880 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:48,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 1253 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 01:58:48,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2023-11-29 01:58:48,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1165. [2023-11-29 01:58:48,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1165 states, 1020 states have (on average 1.5911764705882352) internal successors, (1623), 1075 states have internal predecessors, (1623), 83 states have call successors, (83), 6 states have call predecessors, (83), 6 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2023-11-29 01:58:48,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1789 transitions. [2023-11-29 01:58:48,368 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1789 transitions. Word has length 68 [2023-11-29 01:58:48,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:48,368 INFO L495 AbstractCegarLoop]: Abstraction has 1165 states and 1789 transitions. [2023-11-29 01:58:48,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 01:58:48,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1789 transitions. [2023-11-29 01:58:48,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 01:58:48,369 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:58:48,369 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:48,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 01:58:48,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2023-11-29 01:58:48,570 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:58:48,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:48,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1933361790, now seen corresponding path program 1 times [2023-11-29 01:58:48,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:48,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542575247] [2023-11-29 01:58:48,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:48,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:48,575 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:58:48,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1067749475] [2023-11-29 01:58:48,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:48,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:48,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:58:48,577 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:58:48,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 01:58:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:48,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:58:48,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:48,700 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:58:48,700 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:58:48,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:48,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542575247] [2023-11-29 01:58:48,701 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:48,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067749475] [2023-11-29 01:58:48,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067749475] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:58:48,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:58:48,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:58:48,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492433397] [2023-11-29 01:58:48,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:58:48,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:58:48,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:48,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:58:48,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:58:48,702 INFO L87 Difference]: Start difference. First operand 1165 states and 1789 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:58:48,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:48,799 INFO L93 Difference]: Finished difference Result 1165 states and 1789 transitions. [2023-11-29 01:58:48,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:58:48,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 70 [2023-11-29 01:58:48,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:48,802 INFO L225 Difference]: With dead ends: 1165 [2023-11-29 01:58:48,802 INFO L226 Difference]: Without dead ends: 1163 [2023-11-29 01:58:48,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:58:48,803 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 89 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:48,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 169 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:58:48,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2023-11-29 01:58:48,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1163. [2023-11-29 01:58:48,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 1020 states have (on average 1.5705882352941176) internal successors, (1602), 1073 states have internal predecessors, (1602), 83 states have call successors, (83), 6 states have call predecessors, (83), 6 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2023-11-29 01:58:48,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1768 transitions. [2023-11-29 01:58:48,879 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1768 transitions. Word has length 70 [2023-11-29 01:58:48,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:48,879 INFO L495 AbstractCegarLoop]: Abstraction has 1163 states and 1768 transitions. [2023-11-29 01:58:48,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:58:48,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1768 transitions. [2023-11-29 01:58:48,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 01:58:48,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:58:48,880 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:48,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 01:58:49,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-11-29 01:58:49,081 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:58:49,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:49,081 INFO L85 PathProgramCache]: Analyzing trace with hash 41952847, now seen corresponding path program 1 times [2023-11-29 01:58:49,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:49,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810898362] [2023-11-29 01:58:49,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:49,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:49,088 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:58:49,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1035835191] [2023-11-29 01:58:49,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:49,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:49,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:58:49,089 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:58:49,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 01:58:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:49,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:58:49,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:49,262 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 01:58:49,262 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:58:53,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:53,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810898362] [2023-11-29 01:58:53,618 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:53,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035835191] [2023-11-29 01:58:53,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035835191] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:58:53,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:58:53,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 01:58:53,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591704416] [2023-11-29 01:58:53,619 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:58:53,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:58:53,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:53,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:58:53,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=149, Unknown=1, NotChecked=0, Total=182 [2023-11-29 01:58:53,620 INFO L87 Difference]: Start difference. First operand 1163 states and 1768 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 01:58:55,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:55,648 INFO L93 Difference]: Finished difference Result 1749 states and 2412 transitions. [2023-11-29 01:58:55,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:58:55,648 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 69 [2023-11-29 01:58:55,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:55,651 INFO L225 Difference]: With dead ends: 1749 [2023-11-29 01:58:55,652 INFO L226 Difference]: Without dead ends: 1748 [2023-11-29 01:58:55,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=148, Invalid=451, Unknown=1, NotChecked=0, Total=600 [2023-11-29 01:58:55,652 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 867 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:55,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 1250 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 01:58:55,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2023-11-29 01:58:55,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1163. [2023-11-29 01:58:55,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 1020 states have (on average 1.5666666666666667) internal successors, (1598), 1073 states have internal predecessors, (1598), 83 states have call successors, (83), 6 states have call predecessors, (83), 6 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2023-11-29 01:58:55,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1764 transitions. [2023-11-29 01:58:55,743 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1764 transitions. Word has length 69 [2023-11-29 01:58:55,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:55,743 INFO L495 AbstractCegarLoop]: Abstraction has 1163 states and 1764 transitions. [2023-11-29 01:58:55,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 01:58:55,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1764 transitions. [2023-11-29 01:58:55,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 01:58:55,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:58:55,744 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:55,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 01:58:55,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 01:58:55,944 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:58:55,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:55,944 INFO L85 PathProgramCache]: Analyzing trace with hash -195326499, now seen corresponding path program 1 times [2023-11-29 01:58:55,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:55,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041557202] [2023-11-29 01:58:55,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:55,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:55,949 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:58:55,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309752345] [2023-11-29 01:58:55,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:55,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:55,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:58:55,950 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:58:55,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 01:58:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:55,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:58:55,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:56,082 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:58:56,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:58:56,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:56,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041557202] [2023-11-29 01:58:56,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:56,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309752345] [2023-11-29 01:58:56,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309752345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:58:56,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:58:56,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:58:56,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132815040] [2023-11-29 01:58:56,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:58:56,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:58:56,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:56,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:58:56,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:58:56,084 INFO L87 Difference]: Start difference. First operand 1163 states and 1764 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:58:56,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:56,280 INFO L93 Difference]: Finished difference Result 1537 states and 2329 transitions. [2023-11-29 01:58:56,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:58:56,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 71 [2023-11-29 01:58:56,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:56,283 INFO L225 Difference]: With dead ends: 1537 [2023-11-29 01:58:56,283 INFO L226 Difference]: Without dead ends: 1535 [2023-11-29 01:58:56,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:58:56,284 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 133 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:56,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 292 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:58:56,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2023-11-29 01:58:56,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1293. [2023-11-29 01:58:56,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1138 states have (on average 1.5764499121265378) internal successors, (1794), 1191 states have internal predecessors, (1794), 95 states have call successors, (95), 6 states have call predecessors, (95), 6 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2023-11-29 01:58:56,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1984 transitions. [2023-11-29 01:58:56,362 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1984 transitions. Word has length 71 [2023-11-29 01:58:56,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:56,362 INFO L495 AbstractCegarLoop]: Abstraction has 1293 states and 1984 transitions. [2023-11-29 01:58:56,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:58:56,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1984 transitions. [2023-11-29 01:58:56,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 01:58:56,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:58:56,363 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:56,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 01:58:56,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-11-29 01:58:56,564 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:58:56,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:56,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1661984113, now seen corresponding path program 1 times [2023-11-29 01:58:56,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:56,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550691839] [2023-11-29 01:58:56,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:56,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:56,570 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:58:56,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557372562] [2023-11-29 01:58:56,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:56,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:56,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:58:56,571 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:58:56,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 01:58:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:56,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:58:56,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:56,721 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 01:58:56,721 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:58:56,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:56,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550691839] [2023-11-29 01:58:56,741 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:56,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557372562] [2023-11-29 01:58:56,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557372562] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:58:56,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:58:56,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 01:58:56,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742123344] [2023-11-29 01:58:56,741 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:58:56,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:58:56,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:56,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:58:56,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:58:56,742 INFO L87 Difference]: Start difference. First operand 1293 states and 1984 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:58:57,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:57,562 INFO L93 Difference]: Finished difference Result 2005 states and 3103 transitions. [2023-11-29 01:58:57,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:58:57,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 71 [2023-11-29 01:58:57,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:57,566 INFO L225 Difference]: With dead ends: 2005 [2023-11-29 01:58:57,566 INFO L226 Difference]: Without dead ends: 1998 [2023-11-29 01:58:57,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:58:57,567 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 583 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:57,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 458 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:58:57,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1998 states. [2023-11-29 01:58:57,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1998 to 1632. [2023-11-29 01:58:57,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1632 states, 1449 states have (on average 1.5873015873015872) internal successors, (2300), 1502 states have internal predecessors, (2300), 123 states have call successors, (123), 6 states have call predecessors, (123), 6 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2023-11-29 01:58:57,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 2546 transitions. [2023-11-29 01:58:57,670 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 2546 transitions. Word has length 71 [2023-11-29 01:58:57,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:57,671 INFO L495 AbstractCegarLoop]: Abstraction has 1632 states and 2546 transitions. [2023-11-29 01:58:57,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:58:57,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 2546 transitions. [2023-11-29 01:58:57,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 01:58:57,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:58:57,671 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:57,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2023-11-29 01:58:57,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-11-29 01:58:57,872 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:58:57,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:57,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1605349105, now seen corresponding path program 1 times [2023-11-29 01:58:57,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:57,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861341808] [2023-11-29 01:58:57,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:57,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:57,879 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:58:57,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1680740687] [2023-11-29 01:58:57,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:57,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:57,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:58:57,880 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:58:57,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 01:58:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:57,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:58:57,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:58,048 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:58:58,048 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:58:58,191 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:58:58,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:58,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861341808] [2023-11-29 01:58:58,192 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:58,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680740687] [2023-11-29 01:58:58,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680740687] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:58:58,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:58:58,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2023-11-29 01:58:58,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707443163] [2023-11-29 01:58:58,192 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:58:58,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 01:58:58,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:58,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 01:58:58,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2023-11-29 01:58:58,194 INFO L87 Difference]: Start difference. First operand 1632 states and 2546 transitions. Second operand has 18 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 01:58:58,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:58:58,660 INFO L93 Difference]: Finished difference Result 3073 states and 4803 transitions. [2023-11-29 01:58:58,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-29 01:58:58,661 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 76 [2023-11-29 01:58:58,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:58:58,664 INFO L225 Difference]: With dead ends: 3073 [2023-11-29 01:58:58,664 INFO L226 Difference]: Without dead ends: 1784 [2023-11-29 01:58:58,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=1056, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 01:58:58,667 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 154 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:58:58,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1405 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:58:58,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2023-11-29 01:58:58,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1732. [2023-11-29 01:58:58,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1535 states have (on average 1.564169381107492) internal successors, (2401), 1588 states have internal predecessors, (2401), 135 states have call successors, (135), 8 states have call predecessors, (135), 8 states have return successors, (135), 135 states have call predecessors, (135), 135 states have call successors, (135) [2023-11-29 01:58:58,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2671 transitions. [2023-11-29 01:58:58,785 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2671 transitions. Word has length 76 [2023-11-29 01:58:58,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:58:58,785 INFO L495 AbstractCegarLoop]: Abstraction has 1732 states and 2671 transitions. [2023-11-29 01:58:58,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 01:58:58,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2671 transitions. [2023-11-29 01:58:58,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 01:58:58,786 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:58:58,786 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:58,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 01:58:58,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 01:58:58,986 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:58:58,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:58,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1554589290, now seen corresponding path program 1 times [2023-11-29 01:58:58,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:58,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509425192] [2023-11-29 01:58:58,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:58,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:58,991 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:58:58,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [740106207] [2023-11-29 01:58:58,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:58,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:58:58,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:58:58,993 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:58:58,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 01:58:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:59,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:58:59,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:58:59,152 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 01:58:59,152 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:58:59,328 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 01:58:59,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:59,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509425192] [2023-11-29 01:58:59,328 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:58:59,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740106207] [2023-11-29 01:58:59,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740106207] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:58:59,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:58:59,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 01:58:59,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62815043] [2023-11-29 01:58:59,328 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:58:59,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 01:58:59,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:59,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 01:58:59,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:58:59,329 INFO L87 Difference]: Start difference. First operand 1732 states and 2671 transitions. Second operand has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 13 states have internal predecessors, (114), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 01:59:04,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:59:04,688 INFO L93 Difference]: Finished difference Result 2639 states and 3742 transitions. [2023-11-29 01:59:04,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 01:59:04,689 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 13 states have internal predecessors, (114), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 77 [2023-11-29 01:59:04,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:59:04,695 INFO L225 Difference]: With dead ends: 2639 [2023-11-29 01:59:04,695 INFO L226 Difference]: Without dead ends: 2637 [2023-11-29 01:59:04,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 01:59:04,697 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 1212 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 1830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:59:04,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 1804 Invalid, 1830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-11-29 01:59:04,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2023-11-29 01:59:04,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 1860. [2023-11-29 01:59:04,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1860 states, 1648 states have (on average 1.5594660194174756) internal successors, (2570), 1701 states have internal predecessors, (2570), 150 states have call successors, (150), 8 states have call predecessors, (150), 8 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2023-11-29 01:59:04,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1860 states to 1860 states and 2870 transitions. [2023-11-29 01:59:04,866 INFO L78 Accepts]: Start accepts. Automaton has 1860 states and 2870 transitions. Word has length 77 [2023-11-29 01:59:04,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:59:04,866 INFO L495 AbstractCegarLoop]: Abstraction has 1860 states and 2870 transitions. [2023-11-29 01:59:04,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 13 states have internal predecessors, (114), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 01:59:04,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1860 states and 2870 transitions. [2023-11-29 01:59:04,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 01:59:04,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:59:04,867 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:59:04,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 01:59:05,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 01:59:05,068 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:59:05,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:05,068 INFO L85 PathProgramCache]: Analyzing trace with hash 947627860, now seen corresponding path program 1 times [2023-11-29 01:59:05,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:59:05,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755272470] [2023-11-29 01:59:05,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:05,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:59:05,075 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:59:05,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1614675451] [2023-11-29 01:59:05,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:05,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:05,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:59:05,076 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:59:05,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 01:59:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:05,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:59:05,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:59:05,228 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:59:05,229 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:59:05,402 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:59:05,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:59:05,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755272470] [2023-11-29 01:59:05,402 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:59:05,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614675451] [2023-11-29 01:59:05,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614675451] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:59:05,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:59:05,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 01:59:05,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999114894] [2023-11-29 01:59:05,403 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:59:05,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:59:05,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:59:05,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:59:05,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:59:05,404 INFO L87 Difference]: Start difference. First operand 1860 states and 2870 transitions. Second operand has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 12 states have internal predecessors, (112), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 01:59:12,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:59:12,273 INFO L93 Difference]: Finished difference Result 3366 states and 4967 transitions. [2023-11-29 01:59:12,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 01:59:12,274 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 12 states have internal predecessors, (112), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 78 [2023-11-29 01:59:12,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:59:12,279 INFO L225 Difference]: With dead ends: 3366 [2023-11-29 01:59:12,280 INFO L226 Difference]: Without dead ends: 3364 [2023-11-29 01:59:12,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=410, Invalid=996, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 01:59:12,281 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 3128 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3128 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:59:12,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3128 Valid, 758 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-11-29 01:59:12,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3364 states. [2023-11-29 01:59:12,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3364 to 2079. [2023-11-29 01:59:12,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2079 states, 1843 states have (on average 1.5556158437330438) internal successors, (2867), 1896 states have internal predecessors, (2867), 174 states have call successors, (174), 8 states have call predecessors, (174), 8 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2023-11-29 01:59:12,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 3215 transitions. [2023-11-29 01:59:12,451 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 3215 transitions. Word has length 78 [2023-11-29 01:59:12,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:59:12,452 INFO L495 AbstractCegarLoop]: Abstraction has 2079 states and 3215 transitions. [2023-11-29 01:59:12,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.181818181818182) internal successors, (112), 12 states have internal predecessors, (112), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 01:59:12,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 3215 transitions. [2023-11-29 01:59:12,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-29 01:59:12,452 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:59:12,452 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:59:12,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2023-11-29 01:59:12,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:12,653 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:59:12,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:12,653 INFO L85 PathProgramCache]: Analyzing trace with hash 812176393, now seen corresponding path program 1 times [2023-11-29 01:59:12,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:59:12,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111434493] [2023-11-29 01:59:12,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:12,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:59:12,659 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:59:12,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [297142223] [2023-11-29 01:59:12,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:12,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:12,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:59:12,660 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:59:12,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 01:59:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:12,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:59:12,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:59:12,933 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:59:12,933 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:59:12,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:59:12,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111434493] [2023-11-29 01:59:12,934 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:59:12,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297142223] [2023-11-29 01:59:12,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297142223] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:59:12,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:59:12,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:59:12,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498200684] [2023-11-29 01:59:12,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:59:12,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:59:12,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:59:12,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:59:12,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:59:12,935 INFO L87 Difference]: Start difference. First operand 2079 states and 3215 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:13,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:59:13,326 INFO L93 Difference]: Finished difference Result 2117 states and 3228 transitions. [2023-11-29 01:59:13,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:59:13,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 82 [2023-11-29 01:59:13,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:59:13,332 INFO L225 Difference]: With dead ends: 2117 [2023-11-29 01:59:13,333 INFO L226 Difference]: Without dead ends: 2116 [2023-11-29 01:59:13,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:59:13,333 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 130 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:59:13,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 342 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:59:13,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2023-11-29 01:59:13,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 2079. [2023-11-29 01:59:13,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2079 states, 1843 states have (on average 1.5539880629408573) internal successors, (2864), 1896 states have internal predecessors, (2864), 174 states have call successors, (174), 8 states have call predecessors, (174), 8 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2023-11-29 01:59:13,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 3212 transitions. [2023-11-29 01:59:13,589 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 3212 transitions. Word has length 82 [2023-11-29 01:59:13,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:59:13,589 INFO L495 AbstractCegarLoop]: Abstraction has 2079 states and 3212 transitions. [2023-11-29 01:59:13,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:13,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 3212 transitions. [2023-11-29 01:59:13,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-29 01:59:13,591 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:59:13,591 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:59:13,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 01:59:13,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2023-11-29 01:59:13,796 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:59:13,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash -592335422, now seen corresponding path program 1 times [2023-11-29 01:59:13,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:59:13,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956746928] [2023-11-29 01:59:13,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:13,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:59:13,803 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:59:13,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [77976100] [2023-11-29 01:59:13,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:13,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:13,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:59:13,804 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:59:13,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 01:59:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:13,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:59:13,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:59:14,022 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:59:14,022 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:59:14,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:59:14,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956746928] [2023-11-29 01:59:14,090 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:59:14,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77976100] [2023-11-29 01:59:14,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77976100] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:59:14,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:59:14,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 01:59:14,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142188359] [2023-11-29 01:59:14,091 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:59:14,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:59:14,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:59:14,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:59:14,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:59:14,092 INFO L87 Difference]: Start difference. First operand 2079 states and 3212 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:14,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:59:14,465 INFO L93 Difference]: Finished difference Result 2233 states and 3365 transitions. [2023-11-29 01:59:14,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:59:14,466 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 83 [2023-11-29 01:59:14,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:59:14,470 INFO L225 Difference]: With dead ends: 2233 [2023-11-29 01:59:14,470 INFO L226 Difference]: Without dead ends: 2232 [2023-11-29 01:59:14,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:59:14,471 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 229 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:59:14,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 471 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:59:14,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2023-11-29 01:59:14,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 2079. [2023-11-29 01:59:14,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2079 states, 1843 states have (on average 1.5534454693434618) internal successors, (2863), 1896 states have internal predecessors, (2863), 174 states have call successors, (174), 8 states have call predecessors, (174), 8 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2023-11-29 01:59:14,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 3211 transitions. [2023-11-29 01:59:14,649 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 3211 transitions. Word has length 83 [2023-11-29 01:59:14,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:59:14,650 INFO L495 AbstractCegarLoop]: Abstraction has 2079 states and 3211 transitions. [2023-11-29 01:59:14,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:14,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 3211 transitions. [2023-11-29 01:59:14,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 01:59:14,650 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:59:14,650 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:59:14,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2023-11-29 01:59:14,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2023-11-29 01:59:14,851 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:59:14,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:14,851 INFO L85 PathProgramCache]: Analyzing trace with hash -437621874, now seen corresponding path program 1 times [2023-11-29 01:59:14,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:59:14,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071084118] [2023-11-29 01:59:14,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:14,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:59:14,858 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:59:14,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1320006673] [2023-11-29 01:59:14,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:14,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:14,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:59:14,859 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:59:14,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 01:59:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:14,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:59:14,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:59:14,975 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:59:14,975 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:59:15,079 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:59:15,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:59:15,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071084118] [2023-11-29 01:59:15,080 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:59:15,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320006673] [2023-11-29 01:59:15,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320006673] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:59:15,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:59:15,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 01:59:15,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447828192] [2023-11-29 01:59:15,080 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:59:15,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:59:15,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:59:15,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:59:15,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:59:15,081 INFO L87 Difference]: Start difference. First operand 2079 states and 3211 transitions. Second operand has 12 states, 11 states have (on average 10.363636363636363) internal successors, (114), 12 states have internal predecessors, (114), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 01:59:17,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:59:17,986 INFO L93 Difference]: Finished difference Result 2864 states and 4151 transitions. [2023-11-29 01:59:17,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 01:59:17,986 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.363636363636363) internal successors, (114), 12 states have internal predecessors, (114), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 84 [2023-11-29 01:59:17,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:59:17,990 INFO L225 Difference]: With dead ends: 2864 [2023-11-29 01:59:17,990 INFO L226 Difference]: Without dead ends: 2862 [2023-11-29 01:59:17,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=298, Invalid=758, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 01:59:17,991 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 2163 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:59:17,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2167 Valid, 1032 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 01:59:17,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2862 states. [2023-11-29 01:59:18,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2862 to 2088. [2023-11-29 01:59:18,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2088 states, 1848 states have (on average 1.5346320346320346) internal successors, (2836), 1900 states have internal predecessors, (2836), 179 states have call successors, (179), 8 states have call predecessors, (179), 8 states have return successors, (179), 179 states have call predecessors, (179), 179 states have call successors, (179) [2023-11-29 01:59:18,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 3194 transitions. [2023-11-29 01:59:18,262 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 3194 transitions. Word has length 84 [2023-11-29 01:59:18,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:59:18,262 INFO L495 AbstractCegarLoop]: Abstraction has 2088 states and 3194 transitions. [2023-11-29 01:59:18,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.363636363636363) internal successors, (114), 12 states have internal predecessors, (114), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 01:59:18,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 3194 transitions. [2023-11-29 01:59:18,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 01:59:18,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:59:18,264 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:59:18,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-11-29 01:59:18,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2023-11-29 01:59:18,464 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:59:18,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:18,464 INFO L85 PathProgramCache]: Analyzing trace with hash -681376075, now seen corresponding path program 1 times [2023-11-29 01:59:18,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:59:18,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503179583] [2023-11-29 01:59:18,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:18,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:59:18,469 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:59:18,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [773048384] [2023-11-29 01:59:18,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:18,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:18,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:59:18,470 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:59:18,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 01:59:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:18,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:59:18,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:59:18,607 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:59:18,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:59:18,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:59:18,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503179583] [2023-11-29 01:59:18,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:59:18,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773048384] [2023-11-29 01:59:18,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773048384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:59:18,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:59:18,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:59:18,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522377840] [2023-11-29 01:59:18,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:59:18,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:59:18,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:59:18,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:59:18,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:59:18,609 INFO L87 Difference]: Start difference. First operand 2088 states and 3194 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:19,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:59:19,799 INFO L93 Difference]: Finished difference Result 2889 states and 4411 transitions. [2023-11-29 01:59:19,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:59:19,800 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 85 [2023-11-29 01:59:19,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:59:19,805 INFO L225 Difference]: With dead ends: 2889 [2023-11-29 01:59:19,805 INFO L226 Difference]: Without dead ends: 2887 [2023-11-29 01:59:19,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:59:19,807 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 495 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:59:19,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 613 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 01:59:19,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2023-11-29 01:59:20,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 2762. [2023-11-29 01:59:20,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2455 states have (on average 1.5665987780040733) internal successors, (3846), 2507 states have internal predecessors, (3846), 246 states have call successors, (246), 8 states have call predecessors, (246), 8 states have return successors, (246), 246 states have call predecessors, (246), 246 states have call successors, (246) [2023-11-29 01:59:20,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 4338 transitions. [2023-11-29 01:59:20,045 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 4338 transitions. Word has length 85 [2023-11-29 01:59:20,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:59:20,045 INFO L495 AbstractCegarLoop]: Abstraction has 2762 states and 4338 transitions. [2023-11-29 01:59:20,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:20,045 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 4338 transitions. [2023-11-29 01:59:20,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 01:59:20,046 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:59:20,046 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:59:20,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 01:59:20,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:20,246 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:59:20,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:20,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1996315364, now seen corresponding path program 1 times [2023-11-29 01:59:20,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:59:20,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577776724] [2023-11-29 01:59:20,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:20,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:59:20,252 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:59:20,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097696927] [2023-11-29 01:59:20,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:20,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:20,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:59:20,253 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:59:20,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 01:59:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:20,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:59:20,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:59:20,552 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:59:20,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:59:20,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:59:20,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577776724] [2023-11-29 01:59:20,552 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:59:20,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097696927] [2023-11-29 01:59:20,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097696927] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:59:20,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:59:20,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:59:20,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492475767] [2023-11-29 01:59:20,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:59:20,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:59:20,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:59:20,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:59:20,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:59:20,553 INFO L87 Difference]: Start difference. First operand 2762 states and 4338 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:20,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:59:20,979 INFO L93 Difference]: Finished difference Result 2797 states and 4351 transitions. [2023-11-29 01:59:20,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:59:20,979 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 85 [2023-11-29 01:59:20,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:59:20,983 INFO L225 Difference]: With dead ends: 2797 [2023-11-29 01:59:20,983 INFO L226 Difference]: Without dead ends: 2796 [2023-11-29 01:59:20,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:59:20,984 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 134 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:59:20,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 426 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:59:20,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2796 states. [2023-11-29 01:59:21,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2796 to 2762. [2023-11-29 01:59:21,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2455 states have (on average 1.5653767820773932) internal successors, (3843), 2507 states have internal predecessors, (3843), 246 states have call successors, (246), 8 states have call predecessors, (246), 8 states have return successors, (246), 246 states have call predecessors, (246), 246 states have call successors, (246) [2023-11-29 01:59:21,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 4335 transitions. [2023-11-29 01:59:21,203 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 4335 transitions. Word has length 85 [2023-11-29 01:59:21,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:59:21,203 INFO L495 AbstractCegarLoop]: Abstraction has 2762 states and 4335 transitions. [2023-11-29 01:59:21,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:21,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 4335 transitions. [2023-11-29 01:59:21,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 01:59:21,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:59:21,204 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:59:21,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-29 01:59:21,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:21,405 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:59:21,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:21,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1391315226, now seen corresponding path program 1 times [2023-11-29 01:59:21,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:59:21,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551312527] [2023-11-29 01:59:21,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:21,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:59:21,411 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:59:21,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1216367143] [2023-11-29 01:59:21,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:21,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:21,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:59:21,413 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:59:21,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 01:59:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:21,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:59:21,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:59:21,589 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:59:21,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:59:21,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:59:21,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551312527] [2023-11-29 01:59:21,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:59:21,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216367143] [2023-11-29 01:59:21,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216367143] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:59:21,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:59:21,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 01:59:21,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363779812] [2023-11-29 01:59:21,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:59:21,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:59:21,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:59:21,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:59:21,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:59:21,591 INFO L87 Difference]: Start difference. First operand 2762 states and 4335 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:22,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:59:22,001 INFO L93 Difference]: Finished difference Result 2764 states and 4335 transitions. [2023-11-29 01:59:22,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 01:59:22,001 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 87 [2023-11-29 01:59:22,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:59:22,005 INFO L225 Difference]: With dead ends: 2764 [2023-11-29 01:59:22,005 INFO L226 Difference]: Without dead ends: 2761 [2023-11-29 01:59:22,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2023-11-29 01:59:22,006 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 239 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:59:22,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 630 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:59:22,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2023-11-29 01:59:22,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 2759. [2023-11-29 01:59:22,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2759 states, 2455 states have (on average 1.545010183299389) internal successors, (3793), 2504 states have internal predecessors, (3793), 246 states have call successors, (246), 8 states have call predecessors, (246), 8 states have return successors, (246), 246 states have call predecessors, (246), 246 states have call successors, (246) [2023-11-29 01:59:22,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2759 states to 2759 states and 4285 transitions. [2023-11-29 01:59:22,228 INFO L78 Accepts]: Start accepts. Automaton has 2759 states and 4285 transitions. Word has length 87 [2023-11-29 01:59:22,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:59:22,229 INFO L495 AbstractCegarLoop]: Abstraction has 2759 states and 4285 transitions. [2023-11-29 01:59:22,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:22,229 INFO L276 IsEmpty]: Start isEmpty. Operand 2759 states and 4285 transitions. [2023-11-29 01:59:22,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 01:59:22,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:59:22,229 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:59:22,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2023-11-29 01:59:22,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:22,430 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:59:22,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:22,430 INFO L85 PathProgramCache]: Analyzing trace with hash -859075885, now seen corresponding path program 1 times [2023-11-29 01:59:22,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:59:22,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302194614] [2023-11-29 01:59:22,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:22,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:59:22,435 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:59:22,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [284715587] [2023-11-29 01:59:22,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:22,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:22,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:59:22,437 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:59:22,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 01:59:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:22,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:59:22,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:59:22,583 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:59:22,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:59:22,714 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:59:22,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:59:22,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302194614] [2023-11-29 01:59:22,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:59:22,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284715587] [2023-11-29 01:59:22,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284715587] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:59:22,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:59:22,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 01:59:22,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778284363] [2023-11-29 01:59:22,715 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:59:22,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:59:22,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:59:22,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:59:22,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:59:22,716 INFO L87 Difference]: Start difference. First operand 2759 states and 4285 transitions. Second operand has 14 states, 13 states have (on average 9.384615384615385) internal successors, (122), 14 states have internal predecessors, (122), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 01:59:25,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:59:25,530 INFO L93 Difference]: Finished difference Result 5281 states and 8129 transitions. [2023-11-29 01:59:25,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 01:59:25,531 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.384615384615385) internal successors, (122), 14 states have internal predecessors, (122), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 88 [2023-11-29 01:59:25,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:59:25,538 INFO L225 Difference]: With dead ends: 5281 [2023-11-29 01:59:25,538 INFO L226 Difference]: Without dead ends: 5278 [2023-11-29 01:59:25,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 946 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=926, Invalid=2380, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 01:59:25,540 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 2296 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2296 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:59:25,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2296 Valid, 825 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 01:59:25,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5278 states. [2023-11-29 01:59:25,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5278 to 3028. [2023-11-29 01:59:25,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3028 states, 2710 states have (on average 1.5250922509225093) internal successors, (4133), 2759 states have internal predecessors, (4133), 260 states have call successors, (260), 8 states have call predecessors, (260), 8 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2023-11-29 01:59:25,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3028 states to 3028 states and 4653 transitions. [2023-11-29 01:59:25,823 INFO L78 Accepts]: Start accepts. Automaton has 3028 states and 4653 transitions. Word has length 88 [2023-11-29 01:59:25,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:59:25,823 INFO L495 AbstractCegarLoop]: Abstraction has 3028 states and 4653 transitions. [2023-11-29 01:59:25,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.384615384615385) internal successors, (122), 14 states have internal predecessors, (122), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 01:59:25,823 INFO L276 IsEmpty]: Start isEmpty. Operand 3028 states and 4653 transitions. [2023-11-29 01:59:25,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 01:59:25,824 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:59:25,824 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:59:25,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2023-11-29 01:59:26,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:26,025 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:59:26,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:26,025 INFO L85 PathProgramCache]: Analyzing trace with hash 544692975, now seen corresponding path program 1 times [2023-11-29 01:59:26,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:59:26,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010857191] [2023-11-29 01:59:26,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:26,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:59:26,031 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:59:26,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1164610008] [2023-11-29 01:59:26,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:26,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:26,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:59:26,033 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:59:26,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 01:59:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:26,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:59:26,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:59:26,189 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:59:26,189 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:59:26,323 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:59:26,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:59:26,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010857191] [2023-11-29 01:59:26,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:59:26,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164610008] [2023-11-29 01:59:26,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164610008] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:59:26,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:59:26,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2023-11-29 01:59:26,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645825239] [2023-11-29 01:59:26,324 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:59:26,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 01:59:26,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:59:26,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 01:59:26,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:59:26,326 INFO L87 Difference]: Start difference. First operand 3028 states and 4653 transitions. Second operand has 22 states, 22 states have (on average 6.136363636363637) internal successors, (135), 22 states have internal predecessors, (135), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 01:59:26,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:59:26,850 INFO L93 Difference]: Finished difference Result 5299 states and 8268 transitions. [2023-11-29 01:59:26,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 01:59:26,850 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.136363636363637) internal successors, (135), 22 states have internal predecessors, (135), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 94 [2023-11-29 01:59:26,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:59:26,853 INFO L225 Difference]: With dead ends: 5299 [2023-11-29 01:59:26,853 INFO L226 Difference]: Without dead ends: 3150 [2023-11-29 01:59:26,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=356, Invalid=1366, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 01:59:26,856 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 178 mSDsluCounter, 1481 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:59:26,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 1612 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:59:26,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2023-11-29 01:59:27,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 3087. [2023-11-29 01:59:27,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3087 states, 2763 states have (on average 1.5171914585595367) internal successors, (4192), 2812 states have internal predecessors, (4192), 264 states have call successors, (264), 10 states have call predecessors, (264), 10 states have return successors, (264), 264 states have call predecessors, (264), 264 states have call successors, (264) [2023-11-29 01:59:27,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3087 states to 3087 states and 4720 transitions. [2023-11-29 01:59:27,198 INFO L78 Accepts]: Start accepts. Automaton has 3087 states and 4720 transitions. Word has length 94 [2023-11-29 01:59:27,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:59:27,198 INFO L495 AbstractCegarLoop]: Abstraction has 3087 states and 4720 transitions. [2023-11-29 01:59:27,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.136363636363637) internal successors, (135), 22 states have internal predecessors, (135), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 01:59:27,199 INFO L276 IsEmpty]: Start isEmpty. Operand 3087 states and 4720 transitions. [2023-11-29 01:59:27,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 01:59:27,200 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:59:27,200 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:59:27,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-29 01:59:27,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:27,400 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:59:27,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:27,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2109147951, now seen corresponding path program 1 times [2023-11-29 01:59:27,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:59:27,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886017494] [2023-11-29 01:59:27,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:27,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:59:27,408 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:59:27,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [447645418] [2023-11-29 01:59:27,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:27,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:27,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:59:27,409 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:59:27,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 01:59:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:27,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:59:27,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:59:27,523 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-29 01:59:27,523 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:59:27,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:59:27,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886017494] [2023-11-29 01:59:27,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:59:27,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447645418] [2023-11-29 01:59:27,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447645418] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:59:27,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:59:27,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 01:59:27,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730582005] [2023-11-29 01:59:27,736 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:59:27,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:59:27,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:59:27,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:59:27,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:59:27,737 INFO L87 Difference]: Start difference. First operand 3087 states and 4720 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:28,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:59:28,388 INFO L93 Difference]: Finished difference Result 3163 states and 4751 transitions. [2023-11-29 01:59:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:59:28,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 95 [2023-11-29 01:59:28,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:59:28,392 INFO L225 Difference]: With dead ends: 3163 [2023-11-29 01:59:28,393 INFO L226 Difference]: Without dead ends: 3162 [2023-11-29 01:59:28,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:59:28,394 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 142 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:59:28,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 574 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:59:28,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2023-11-29 01:59:28,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 3088. [2023-11-29 01:59:28,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3088 states, 2764 states have (on average 1.5170043415340086) internal successors, (4193), 2813 states have internal predecessors, (4193), 264 states have call successors, (264), 10 states have call predecessors, (264), 10 states have return successors, (264), 264 states have call predecessors, (264), 264 states have call successors, (264) [2023-11-29 01:59:28,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3088 states to 3088 states and 4721 transitions. [2023-11-29 01:59:28,663 INFO L78 Accepts]: Start accepts. Automaton has 3088 states and 4721 transitions. Word has length 95 [2023-11-29 01:59:28,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:59:28,664 INFO L495 AbstractCegarLoop]: Abstraction has 3088 states and 4721 transitions. [2023-11-29 01:59:28,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:28,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3088 states and 4721 transitions. [2023-11-29 01:59:28,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-29 01:59:28,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:59:28,665 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:59:28,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2023-11-29 01:59:28,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2023-11-29 01:59:28,865 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:59:28,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:28,866 INFO L85 PathProgramCache]: Analyzing trace with hash 959077231, now seen corresponding path program 1 times [2023-11-29 01:59:28,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:59:28,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948305081] [2023-11-29 01:59:28,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:28,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:59:28,871 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:59:28,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [639301698] [2023-11-29 01:59:28,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:28,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:28,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:59:28,872 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:59:28,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 01:59:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:28,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:59:28,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:59:29,935 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:59:29,935 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:59:38,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:59:38,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948305081] [2023-11-29 01:59:38,901 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:59:38,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639301698] [2023-11-29 01:59:38,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639301698] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:59:38,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:59:38,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 01:59:38,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110866063] [2023-11-29 01:59:38,902 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:59:38,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:59:38,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:59:38,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:59:38,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=197, Unknown=2, NotChecked=0, Total=240 [2023-11-29 01:59:38,903 INFO L87 Difference]: Start difference. First operand 3088 states and 4721 transitions. Second operand has 10 states, 9 states have (on average 8.0) internal successors, (72), 10 states have internal predecessors, (72), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:41,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:59:41,457 INFO L93 Difference]: Finished difference Result 3820 states and 5683 transitions. [2023-11-29 01:59:41,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:59:41,458 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.0) internal successors, (72), 10 states have internal predecessors, (72), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 96 [2023-11-29 01:59:41,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:59:41,461 INFO L225 Difference]: With dead ends: 3820 [2023-11-29 01:59:41,461 INFO L226 Difference]: Without dead ends: 3819 [2023-11-29 01:59:41,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=86, Invalid=374, Unknown=2, NotChecked=0, Total=462 [2023-11-29 01:59:41,462 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 500 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:59:41,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 1249 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 01:59:41,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3819 states. [2023-11-29 01:59:41,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3819 to 3352. [2023-11-29 01:59:41,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3352 states, 3006 states have (on average 1.5009980039920159) internal successors, (4512), 3055 states have internal predecessors, (4512), 286 states have call successors, (286), 10 states have call predecessors, (286), 10 states have return successors, (286), 286 states have call predecessors, (286), 286 states have call successors, (286) [2023-11-29 01:59:41,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 5084 transitions. [2023-11-29 01:59:41,758 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 5084 transitions. Word has length 96 [2023-11-29 01:59:41,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:59:41,758 INFO L495 AbstractCegarLoop]: Abstraction has 3352 states and 5084 transitions. [2023-11-29 01:59:41,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.0) internal successors, (72), 10 states have internal predecessors, (72), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:41,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 5084 transitions. [2023-11-29 01:59:41,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 01:59:41,759 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:59:41,759 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:59:41,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2023-11-29 01:59:41,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70 [2023-11-29 01:59:41,960 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:59:41,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:41,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1980992365, now seen corresponding path program 1 times [2023-11-29 01:59:41,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:59:41,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001750942] [2023-11-29 01:59:41,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:41,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:59:41,967 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:59:41,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [324906003] [2023-11-29 01:59:41,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:41,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:41,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:59:41,968 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:59:41,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 01:59:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:42,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:59:42,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:59:42,247 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:59:42,247 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:59:42,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:59:42,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001750942] [2023-11-29 01:59:42,317 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:59:42,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324906003] [2023-11-29 01:59:42,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324906003] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:59:42,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:59:42,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 01:59:42,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323796897] [2023-11-29 01:59:42,317 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:59:42,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:59:42,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:59:42,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:59:42,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:59:42,318 INFO L87 Difference]: Start difference. First operand 3352 states and 5084 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 8 states have internal predecessors, (73), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:43,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:59:43,437 INFO L93 Difference]: Finished difference Result 3494 states and 5203 transitions. [2023-11-29 01:59:43,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:59:43,437 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 8 states have internal predecessors, (73), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 97 [2023-11-29 01:59:43,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:59:43,441 INFO L225 Difference]: With dead ends: 3494 [2023-11-29 01:59:43,441 INFO L226 Difference]: Without dead ends: 3493 [2023-11-29 01:59:43,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:59:43,442 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 187 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:59:43,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 852 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:59:43,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3493 states. [2023-11-29 01:59:43,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3493 to 3364. [2023-11-29 01:59:43,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3364 states, 3018 states have (on average 1.4983432736911861) internal successors, (4522), 3067 states have internal predecessors, (4522), 286 states have call successors, (286), 10 states have call predecessors, (286), 10 states have return successors, (286), 286 states have call predecessors, (286), 286 states have call successors, (286) [2023-11-29 01:59:43,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3364 states to 3364 states and 5094 transitions. [2023-11-29 01:59:43,738 INFO L78 Accepts]: Start accepts. Automaton has 3364 states and 5094 transitions. Word has length 97 [2023-11-29 01:59:43,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:59:43,738 INFO L495 AbstractCegarLoop]: Abstraction has 3364 states and 5094 transitions. [2023-11-29 01:59:43,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 8 states have internal predecessors, (73), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:43,738 INFO L276 IsEmpty]: Start isEmpty. Operand 3364 states and 5094 transitions. [2023-11-29 01:59:43,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 01:59:43,739 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:59:43,739 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:59:43,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2023-11-29 01:59:43,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:43,940 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:59:43,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:43,940 INFO L85 PathProgramCache]: Analyzing trace with hash -333376719, now seen corresponding path program 1 times [2023-11-29 01:59:43,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:59:43,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324816644] [2023-11-29 01:59:43,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:43,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:59:43,945 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:59:43,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [49464484] [2023-11-29 01:59:43,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:43,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:43,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:59:43,946 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:59:43,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-29 01:59:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:44,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:59:44,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:59:44,337 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:59:44,337 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:59:44,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:59:44,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324816644] [2023-11-29 01:59:44,512 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:59:44,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49464484] [2023-11-29 01:59:44,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49464484] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:59:44,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:59:44,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 01:59:44,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769204467] [2023-11-29 01:59:44,513 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:59:44,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:59:44,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:59:44,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:59:44,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:59:44,514 INFO L87 Difference]: Start difference. First operand 3364 states and 5094 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 7 states have internal predecessors, (73), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:46,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:59:46,051 INFO L93 Difference]: Finished difference Result 3959 states and 5869 transitions. [2023-11-29 01:59:46,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:59:46,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 7 states have internal predecessors, (73), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 97 [2023-11-29 01:59:46,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:59:46,056 INFO L225 Difference]: With dead ends: 3959 [2023-11-29 01:59:46,056 INFO L226 Difference]: Without dead ends: 3957 [2023-11-29 01:59:46,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:59:46,057 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 431 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:59:46,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 769 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 01:59:46,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3957 states. [2023-11-29 01:59:46,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3957 to 3837. [2023-11-29 01:59:46,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3837 states, 3446 states have (on average 1.4869413813116656) internal successors, (5124), 3495 states have internal predecessors, (5124), 331 states have call successors, (331), 10 states have call predecessors, (331), 10 states have return successors, (331), 331 states have call predecessors, (331), 331 states have call successors, (331) [2023-11-29 01:59:46,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3837 states to 3837 states and 5786 transitions. [2023-11-29 01:59:46,406 INFO L78 Accepts]: Start accepts. Automaton has 3837 states and 5786 transitions. Word has length 97 [2023-11-29 01:59:46,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:59:46,406 INFO L495 AbstractCegarLoop]: Abstraction has 3837 states and 5786 transitions. [2023-11-29 01:59:46,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 7 states have internal predecessors, (73), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:59:46,407 INFO L276 IsEmpty]: Start isEmpty. Operand 3837 states and 5786 transitions. [2023-11-29 01:59:46,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 01:59:46,408 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:59:46,408 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:59:46,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2023-11-29 01:59:46,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:46,608 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 01:59:46,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:46,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1281221334, now seen corresponding path program 1 times [2023-11-29 01:59:46,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:59:46,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273987098] [2023-11-29 01:59:46,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:46,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:59:46,616 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:59:46,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1519613392] [2023-11-29 01:59:46,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:46,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:59:46,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:59:46,617 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:59:46,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2023-11-29 01:59:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:46,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:59:46,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:59:46,882 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:59:46,882 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:00:27,345 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:00:27,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:00:27,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273987098] [2023-11-29 02:00:27,345 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:00:27,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519613392] [2023-11-29 02:00:27,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519613392] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:00:27,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:00:27,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 02:00:27,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457730633] [2023-11-29 02:00:27,346 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:00:27,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:00:27,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:00:27,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:00:27,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=120, Unknown=10, NotChecked=0, Total=182 [2023-11-29 02:00:27,347 INFO L87 Difference]: Start difference. First operand 3837 states and 5786 transitions. Second operand has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:01:07,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:01:07,287 INFO L93 Difference]: Finished difference Result 6449 states and 9638 transitions. [2023-11-29 02:01:07,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 02:01:07,288 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 98 [2023-11-29 02:01:07,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:01:07,294 INFO L225 Difference]: With dead ends: 6449 [2023-11-29 02:01:07,295 INFO L226 Difference]: Without dead ends: 6448 [2023-11-29 02:01:07,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 72.7s TimeCoverageRelationStatistics Valid=219, Invalid=413, Unknown=18, NotChecked=0, Total=650 [2023-11-29 02:01:07,296 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 1297 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:01:07,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1317 Valid, 1387 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-11-29 02:01:07,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6448 states. [2023-11-29 02:01:07,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6448 to 4158. [2023-11-29 02:01:07,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4158 states, 3745 states have (on average 1.4865153538050735) internal successors, (5567), 3794 states have internal predecessors, (5567), 353 states have call successors, (353), 10 states have call predecessors, (353), 10 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2023-11-29 02:01:07,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4158 states to 4158 states and 6273 transitions. [2023-11-29 02:01:07,730 INFO L78 Accepts]: Start accepts. Automaton has 4158 states and 6273 transitions. Word has length 98 [2023-11-29 02:01:07,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:01:07,731 INFO L495 AbstractCegarLoop]: Abstraction has 4158 states and 6273 transitions. [2023-11-29 02:01:07,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:01:07,731 INFO L276 IsEmpty]: Start isEmpty. Operand 4158 states and 6273 transitions. [2023-11-29 02:01:07,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 02:01:07,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:01:07,731 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:01:07,736 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2023-11-29 02:01:07,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:07,932 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:01:07,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:01:07,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1744743503, now seen corresponding path program 1 times [2023-11-29 02:01:07,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:01:07,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877694855] [2023-11-29 02:01:07,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:07,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:01:07,938 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:01:07,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [788128407] [2023-11-29 02:01:07,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:07,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:07,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:01:07,939 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:01:07,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2023-11-29 02:01:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:01:07,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:01:07,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:01:08,368 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:01:08,368 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:01:08,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:01:08,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877694855] [2023-11-29 02:01:08,847 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:01:08,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788128407] [2023-11-29 02:01:08,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788128407] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:01:08,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:01:08,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 02:01:08,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629738757] [2023-11-29 02:01:08,847 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:01:08,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:01:08,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:01:08,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:01:08,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:01:08,848 INFO L87 Difference]: Start difference. First operand 4158 states and 6273 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:10,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:01:10,358 INFO L93 Difference]: Finished difference Result 4287 states and 6353 transitions. [2023-11-29 02:01:10,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:01:10,359 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 98 [2023-11-29 02:01:10,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:01:10,363 INFO L225 Difference]: With dead ends: 4287 [2023-11-29 02:01:10,363 INFO L226 Difference]: Without dead ends: 4285 [2023-11-29 02:01:10,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:01:10,363 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 464 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:01:10,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 689 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:01:10,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4285 states. [2023-11-29 02:01:10,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4285 to 4159. [2023-11-29 02:01:10,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4159 states, 3746 states have (on average 1.4853176721836625) internal successors, (5564), 3795 states have internal predecessors, (5564), 353 states have call successors, (353), 10 states have call predecessors, (353), 10 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2023-11-29 02:01:10,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4159 states to 4159 states and 6270 transitions. [2023-11-29 02:01:10,821 INFO L78 Accepts]: Start accepts. Automaton has 4159 states and 6270 transitions. Word has length 98 [2023-11-29 02:01:10,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:01:10,821 INFO L495 AbstractCegarLoop]: Abstraction has 4159 states and 6270 transitions. [2023-11-29 02:01:10,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 7 states have internal predecessors, (74), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:10,821 INFO L276 IsEmpty]: Start isEmpty. Operand 4159 states and 6270 transitions. [2023-11-29 02:01:10,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 02:01:10,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:01:10,822 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:01:10,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2023-11-29 02:01:11,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:11,023 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:01:11,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:01:11,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1063155855, now seen corresponding path program 1 times [2023-11-29 02:01:11,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:01:11,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052989850] [2023-11-29 02:01:11,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:11,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:01:11,030 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:01:11,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118788962] [2023-11-29 02:01:11,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:11,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:11,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:01:11,031 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:01:11,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-29 02:01:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:01:11,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:01:11,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:01:11,170 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-29 02:01:11,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:01:15,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:01:15,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052989850] [2023-11-29 02:01:15,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:01:15,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118788962] [2023-11-29 02:01:15,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118788962] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:01:15,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:01:15,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 02:01:15,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789284728] [2023-11-29 02:01:15,476 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:01:15,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:01:15,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:01:15,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:01:15,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=51, Unknown=1, NotChecked=0, Total=72 [2023-11-29 02:01:15,477 INFO L87 Difference]: Start difference. First operand 4159 states and 6270 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:16,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:01:16,297 INFO L93 Difference]: Finished difference Result 4262 states and 6357 transitions. [2023-11-29 02:01:16,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:01:16,297 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 99 [2023-11-29 02:01:16,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:01:16,302 INFO L225 Difference]: With dead ends: 4262 [2023-11-29 02:01:16,302 INFO L226 Difference]: Without dead ends: 4261 [2023-11-29 02:01:16,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=44, Invalid=87, Unknown=1, NotChecked=0, Total=132 [2023-11-29 02:01:16,303 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 132 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:01:16,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 472 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:01:16,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4261 states. [2023-11-29 02:01:16,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4261 to 4193. [2023-11-29 02:01:16,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4193 states, 3780 states have (on average 1.482010582010582) internal successors, (5602), 3829 states have internal predecessors, (5602), 353 states have call successors, (353), 10 states have call predecessors, (353), 10 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2023-11-29 02:01:16,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4193 states to 4193 states and 6308 transitions. [2023-11-29 02:01:16,724 INFO L78 Accepts]: Start accepts. Automaton has 4193 states and 6308 transitions. Word has length 99 [2023-11-29 02:01:16,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:01:16,724 INFO L495 AbstractCegarLoop]: Abstraction has 4193 states and 6308 transitions. [2023-11-29 02:01:16,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:16,725 INFO L276 IsEmpty]: Start isEmpty. Operand 4193 states and 6308 transitions. [2023-11-29 02:01:16,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 02:01:16,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:01:16,726 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:01:16,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2023-11-29 02:01:16,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2023-11-29 02:01:16,926 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:01:16,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:01:16,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1747526451, now seen corresponding path program 1 times [2023-11-29 02:01:16,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:01:16,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890205951] [2023-11-29 02:01:16,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:16,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:01:16,932 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:01:16,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735174610] [2023-11-29 02:01:16,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:16,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:16,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:01:16,933 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:01:16,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2023-11-29 02:01:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:01:16,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 02:01:16,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:01:17,244 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:01:17,244 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:01:21,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:01:21,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890205951] [2023-11-29 02:01:21,686 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:01:21,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735174610] [2023-11-29 02:01:21,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735174610] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:01:21,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:01:21,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 02:01:21,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710638895] [2023-11-29 02:01:21,686 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:01:21,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:01:21,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:01:21,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:01:21,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=82, Unknown=1, NotChecked=0, Total=110 [2023-11-29 02:01:21,687 INFO L87 Difference]: Start difference. First operand 4193 states and 6308 transitions. Second operand has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:23,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:01:23,430 INFO L93 Difference]: Finished difference Result 4314 states and 6375 transitions. [2023-11-29 02:01:23,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:01:23,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 99 [2023-11-29 02:01:23,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:01:23,435 INFO L225 Difference]: With dead ends: 4314 [2023-11-29 02:01:23,435 INFO L226 Difference]: Without dead ends: 4313 [2023-11-29 02:01:23,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=64, Invalid=175, Unknown=1, NotChecked=0, Total=240 [2023-11-29 02:01:23,435 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 301 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:01:23,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 877 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 02:01:23,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2023-11-29 02:01:23,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 4194. [2023-11-29 02:01:23,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4194 states, 3781 states have (on average 1.4818830997090717) internal successors, (5603), 3830 states have internal predecessors, (5603), 353 states have call successors, (353), 10 states have call predecessors, (353), 10 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2023-11-29 02:01:23,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4194 states to 4194 states and 6309 transitions. [2023-11-29 02:01:23,842 INFO L78 Accepts]: Start accepts. Automaton has 4194 states and 6309 transitions. Word has length 99 [2023-11-29 02:01:23,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:01:23,842 INFO L495 AbstractCegarLoop]: Abstraction has 4194 states and 6309 transitions. [2023-11-29 02:01:23,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 7 states have internal predecessors, (75), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:23,842 INFO L276 IsEmpty]: Start isEmpty. Operand 4194 states and 6309 transitions. [2023-11-29 02:01:23,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 02:01:23,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:01:23,843 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:01:23,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2023-11-29 02:01:24,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2023-11-29 02:01:24,043 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:01:24,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:01:24,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1401906696, now seen corresponding path program 1 times [2023-11-29 02:01:24,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:01:24,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80353320] [2023-11-29 02:01:24,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:24,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:01:24,050 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:01:24,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1904805600] [2023-11-29 02:01:24,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:24,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:24,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:01:24,051 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:01:24,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2023-11-29 02:01:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:01:24,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:01:24,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:01:24,477 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 5 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:01:24,477 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:01:24,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:01:24,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80353320] [2023-11-29 02:01:24,582 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:01:24,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904805600] [2023-11-29 02:01:24,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904805600] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:01:24,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:01:24,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:01:24,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555393900] [2023-11-29 02:01:24,582 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:01:24,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:01:24,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:01:24,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:01:24,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:01:24,583 INFO L87 Difference]: Start difference. First operand 4194 states and 6309 transitions. Second operand has 9 states, 8 states have (on average 9.5) internal successors, (76), 9 states have internal predecessors, (76), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:25,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:01:25,567 INFO L93 Difference]: Finished difference Result 4302 states and 6381 transitions. [2023-11-29 02:01:25,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:01:25,568 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 9 states have internal predecessors, (76), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 100 [2023-11-29 02:01:25,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:01:25,572 INFO L225 Difference]: With dead ends: 4302 [2023-11-29 02:01:25,573 INFO L226 Difference]: Without dead ends: 4301 [2023-11-29 02:01:25,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:01:25,574 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 173 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:01:25,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 903 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:01:25,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4301 states. [2023-11-29 02:01:25,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4301 to 4200. [2023-11-29 02:01:25,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4200 states, 3787 states have (on average 1.4805914972273568) internal successors, (5607), 3836 states have internal predecessors, (5607), 353 states have call successors, (353), 10 states have call predecessors, (353), 10 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2023-11-29 02:01:25,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4200 states to 4200 states and 6313 transitions. [2023-11-29 02:01:25,987 INFO L78 Accepts]: Start accepts. Automaton has 4200 states and 6313 transitions. Word has length 100 [2023-11-29 02:01:25,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:01:25,987 INFO L495 AbstractCegarLoop]: Abstraction has 4200 states and 6313 transitions. [2023-11-29 02:01:25,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 9 states have internal predecessors, (76), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:25,987 INFO L276 IsEmpty]: Start isEmpty. Operand 4200 states and 6313 transitions. [2023-11-29 02:01:25,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 02:01:25,988 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:01:25,988 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:01:25,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2023-11-29 02:01:26,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2023-11-29 02:01:26,189 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:01:26,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:01:26,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1661254669, now seen corresponding path program 1 times [2023-11-29 02:01:26,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:01:26,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422162887] [2023-11-29 02:01:26,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:26,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:01:26,196 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:01:26,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1505406856] [2023-11-29 02:01:26,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:26,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:26,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:01:26,197 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:01:26,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2023-11-29 02:01:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:01:26,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-29 02:01:26,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:01:27,319 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 02:01:27,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:01:31,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:01:31,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422162887] [2023-11-29 02:01:31,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:01:31,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505406856] [2023-11-29 02:01:31,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505406856] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:01:31,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:01:31,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 02:01:31,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405619164] [2023-11-29 02:01:31,671 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:01:31,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:01:31,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:01:31,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:01:31,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=257, Unknown=1, NotChecked=0, Total=306 [2023-11-29 02:01:31,671 INFO L87 Difference]: Start difference. First operand 4200 states and 6313 transitions. Second operand has 13 states, 12 states have (on average 6.583333333333333) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 02:01:33,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:01:33,555 INFO L93 Difference]: Finished difference Result 4670 states and 6923 transitions. [2023-11-29 02:01:33,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:01:33,555 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.583333333333333) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 100 [2023-11-29 02:01:33,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:01:33,562 INFO L225 Difference]: With dead ends: 4670 [2023-11-29 02:01:33,562 INFO L226 Difference]: Without dead ends: 4669 [2023-11-29 02:01:33,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=63, Invalid=356, Unknown=1, NotChecked=0, Total=420 [2023-11-29 02:01:33,563 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 341 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1218 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:01:33,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1218 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1816 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 02:01:33,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4669 states. [2023-11-29 02:01:34,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4669 to 4210. [2023-11-29 02:01:34,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4210 states, 3797 states have (on average 1.4793257835133) internal successors, (5617), 3846 states have internal predecessors, (5617), 353 states have call successors, (353), 10 states have call predecessors, (353), 10 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2023-11-29 02:01:34,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4210 states to 4210 states and 6323 transitions. [2023-11-29 02:01:34,029 INFO L78 Accepts]: Start accepts. Automaton has 4210 states and 6323 transitions. Word has length 100 [2023-11-29 02:01:34,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:01:34,029 INFO L495 AbstractCegarLoop]: Abstraction has 4210 states and 6323 transitions. [2023-11-29 02:01:34,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.583333333333333) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 02:01:34,029 INFO L276 IsEmpty]: Start isEmpty. Operand 4210 states and 6323 transitions. [2023-11-29 02:01:34,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 02:01:34,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:01:34,030 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:01:34,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2023-11-29 02:01:34,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2023-11-29 02:01:34,230 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:01:34,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:01:34,231 INFO L85 PathProgramCache]: Analyzing trace with hash -509434447, now seen corresponding path program 1 times [2023-11-29 02:01:34,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:01:34,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044991177] [2023-11-29 02:01:34,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:34,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:01:34,237 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:01:34,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [537501197] [2023-11-29 02:01:34,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:34,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:34,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:01:34,238 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:01:34,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2023-11-29 02:01:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:01:34,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:01:34,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:01:34,551 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 21 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:01:34,552 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:01:34,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:01:34,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044991177] [2023-11-29 02:01:34,644 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:01:34,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537501197] [2023-11-29 02:01:34,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537501197] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:01:34,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:01:34,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:01:34,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180001402] [2023-11-29 02:01:34,645 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:01:34,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:01:34,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:01:34,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:01:34,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:01:34,645 INFO L87 Difference]: Start difference. First operand 4210 states and 6323 transitions. Second operand has 9 states, 8 states have (on average 9.625) internal successors, (77), 9 states have internal predecessors, (77), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:36,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:01:36,302 INFO L93 Difference]: Finished difference Result 6739 states and 10351 transitions. [2023-11-29 02:01:36,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 02:01:36,303 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 9 states have internal predecessors, (77), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 101 [2023-11-29 02:01:36,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:01:36,312 INFO L225 Difference]: With dead ends: 6739 [2023-11-29 02:01:36,312 INFO L226 Difference]: Without dead ends: 6737 [2023-11-29 02:01:36,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:01:36,314 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 678 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:01:36,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 843 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:01:36,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6737 states. [2023-11-29 02:01:36,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6737 to 5276. [2023-11-29 02:01:36,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5276 states, 4785 states have (on average 1.5115987460815048) internal successors, (7233), 4834 states have internal predecessors, (7233), 431 states have call successors, (431), 10 states have call predecessors, (431), 10 states have return successors, (431), 431 states have call predecessors, (431), 431 states have call successors, (431) [2023-11-29 02:01:36,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5276 states to 5276 states and 8095 transitions. [2023-11-29 02:01:36,845 INFO L78 Accepts]: Start accepts. Automaton has 5276 states and 8095 transitions. Word has length 101 [2023-11-29 02:01:36,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:01:36,845 INFO L495 AbstractCegarLoop]: Abstraction has 5276 states and 8095 transitions. [2023-11-29 02:01:36,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 9 states have internal predecessors, (77), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:36,845 INFO L276 IsEmpty]: Start isEmpty. Operand 5276 states and 8095 transitions. [2023-11-29 02:01:36,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 02:01:36,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:01:36,846 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:01:36,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2023-11-29 02:01:37,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2023-11-29 02:01:37,046 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:01:37,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:01:37,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1130684044, now seen corresponding path program 1 times [2023-11-29 02:01:37,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:01:37,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596931873] [2023-11-29 02:01:37,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:37,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:01:37,051 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:01:37,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [420571907] [2023-11-29 02:01:37,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:37,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:37,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:01:37,052 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:01:37,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2023-11-29 02:01:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:01:37,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:01:37,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:01:37,157 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 02:01:37,157 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:01:37,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:01:37,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596931873] [2023-11-29 02:01:37,157 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:01:37,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420571907] [2023-11-29 02:01:37,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420571907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:01:37,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:01:37,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:01:37,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814748334] [2023-11-29 02:01:37,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:01:37,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:01:37,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:01:37,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:01:37,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:01:37,159 INFO L87 Difference]: Start difference. First operand 5276 states and 8095 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:37,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:01:37,649 INFO L93 Difference]: Finished difference Result 8637 states and 13420 transitions. [2023-11-29 02:01:37,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:01:37,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 101 [2023-11-29 02:01:37,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:01:37,655 INFO L225 Difference]: With dead ends: 8637 [2023-11-29 02:01:37,655 INFO L226 Difference]: Without dead ends: 4153 [2023-11-29 02:01:37,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:01:37,660 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 34 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:01:37,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 383 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:01:37,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4153 states. [2023-11-29 02:01:38,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4153 to 4066. [2023-11-29 02:01:38,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4066 states, 3706 states have (on average 1.5242849433351322) internal successors, (5649), 3755 states have internal predecessors, (5649), 301 states have call successors, (301), 9 states have call predecessors, (301), 9 states have return successors, (301), 301 states have call predecessors, (301), 301 states have call successors, (301) [2023-11-29 02:01:38,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4066 states to 4066 states and 6251 transitions. [2023-11-29 02:01:38,023 INFO L78 Accepts]: Start accepts. Automaton has 4066 states and 6251 transitions. Word has length 101 [2023-11-29 02:01:38,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:01:38,023 INFO L495 AbstractCegarLoop]: Abstraction has 4066 states and 6251 transitions. [2023-11-29 02:01:38,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:38,023 INFO L276 IsEmpty]: Start isEmpty. Operand 4066 states and 6251 transitions. [2023-11-29 02:01:38,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 02:01:38,024 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:01:38,024 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:01:38,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2023-11-29 02:01:38,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:38,225 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:01:38,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:01:38,225 INFO L85 PathProgramCache]: Analyzing trace with hash 40713013, now seen corresponding path program 1 times [2023-11-29 02:01:38,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:01:38,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527008950] [2023-11-29 02:01:38,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:38,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:01:38,232 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:01:38,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1339662020] [2023-11-29 02:01:38,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:38,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:38,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:01:38,233 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:01:38,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2023-11-29 02:01:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:01:38,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:01:38,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:01:39,015 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:01:39,015 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:01:39,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:01:39,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527008950] [2023-11-29 02:01:39,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:01:39,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339662020] [2023-11-29 02:01:39,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339662020] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:01:39,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:01:39,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 02:01:39,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044201698] [2023-11-29 02:01:39,390 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:01:39,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:01:39,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:01:39,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:01:39,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:01:39,391 INFO L87 Difference]: Start difference. First operand 4066 states and 6251 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:41,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:01:41,003 INFO L93 Difference]: Finished difference Result 4350 states and 6601 transitions. [2023-11-29 02:01:41,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:01:41,004 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 101 [2023-11-29 02:01:41,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:01:41,009 INFO L225 Difference]: With dead ends: 4350 [2023-11-29 02:01:41,009 INFO L226 Difference]: Without dead ends: 4348 [2023-11-29 02:01:41,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:01:41,010 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 447 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:01:41,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 638 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 02:01:41,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4348 states. [2023-11-29 02:01:41,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4348 to 4067. [2023-11-29 02:01:41,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4067 states, 3707 states have (on average 1.5238737523603993) internal successors, (5649), 3756 states have internal predecessors, (5649), 301 states have call successors, (301), 9 states have call predecessors, (301), 9 states have return successors, (301), 301 states have call predecessors, (301), 301 states have call successors, (301) [2023-11-29 02:01:41,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 6251 transitions. [2023-11-29 02:01:41,427 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 6251 transitions. Word has length 101 [2023-11-29 02:01:41,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:01:41,427 INFO L495 AbstractCegarLoop]: Abstraction has 4067 states and 6251 transitions. [2023-11-29 02:01:41,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:41,427 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 6251 transitions. [2023-11-29 02:01:41,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 02:01:41,428 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:01:41,428 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:01:41,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2023-11-29 02:01:41,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:41,629 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:01:41,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:01:41,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1387401498, now seen corresponding path program 1 times [2023-11-29 02:01:41,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:01:41,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270508321] [2023-11-29 02:01:41,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:41,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:01:41,634 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:01:41,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2030171791] [2023-11-29 02:01:41,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:41,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:41,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:01:41,635 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:01:41,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2023-11-29 02:01:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:01:41,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:01:41,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:01:41,958 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 5 proven. 22 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:01:41,958 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:01:42,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:01:42,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270508321] [2023-11-29 02:01:42,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:01:42,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030171791] [2023-11-29 02:01:42,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030171791] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:01:42,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:01:42,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:01:42,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689429642] [2023-11-29 02:01:42,048 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:01:42,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:01:42,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:01:42,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:01:42,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:01:42,048 INFO L87 Difference]: Start difference. First operand 4067 states and 6251 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 9 states have internal predecessors, (78), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:43,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:01:43,366 INFO L93 Difference]: Finished difference Result 4797 states and 7235 transitions. [2023-11-29 02:01:43,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 02:01:43,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 9 states have internal predecessors, (78), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 102 [2023-11-29 02:01:43,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:01:43,372 INFO L225 Difference]: With dead ends: 4797 [2023-11-29 02:01:43,372 INFO L226 Difference]: Without dead ends: 4795 [2023-11-29 02:01:43,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:01:43,373 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 378 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:01:43,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 1182 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 02:01:43,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4795 states. [2023-11-29 02:01:43,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4795 to 4067. [2023-11-29 02:01:43,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4067 states, 3707 states have (on average 1.5203668734826006) internal successors, (5636), 3756 states have internal predecessors, (5636), 301 states have call successors, (301), 9 states have call predecessors, (301), 9 states have return successors, (301), 301 states have call predecessors, (301), 301 states have call successors, (301) [2023-11-29 02:01:43,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 6238 transitions. [2023-11-29 02:01:43,737 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 6238 transitions. Word has length 102 [2023-11-29 02:01:43,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:01:43,737 INFO L495 AbstractCegarLoop]: Abstraction has 4067 states and 6238 transitions. [2023-11-29 02:01:43,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 9 states have internal predecessors, (78), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:43,738 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 6238 transitions. [2023-11-29 02:01:43,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 02:01:43,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:01:43,738 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:01:43,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2023-11-29 02:01:43,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:43,939 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:01:43,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:01:43,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1262103605, now seen corresponding path program 1 times [2023-11-29 02:01:43,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:01:43,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567491926] [2023-11-29 02:01:43,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:43,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:01:43,946 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:01:43,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [640368848] [2023-11-29 02:01:43,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:43,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:43,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:01:43,947 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:01:43,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2023-11-29 02:01:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:01:44,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:01:44,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:01:45,292 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:01:45,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:01:46,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:01:46,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567491926] [2023-11-29 02:01:46,596 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:01:46,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640368848] [2023-11-29 02:01:46,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640368848] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:01:46,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:01:46,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 02:01:46,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429934615] [2023-11-29 02:01:46,597 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:01:46,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:01:46,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:01:46,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:01:46,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:01:46,598 INFO L87 Difference]: Start difference. First operand 4067 states and 6238 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:49,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:01:49,118 INFO L93 Difference]: Finished difference Result 4348 states and 6586 transitions. [2023-11-29 02:01:49,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:01:49,119 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 102 [2023-11-29 02:01:49,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:01:49,124 INFO L225 Difference]: With dead ends: 4348 [2023-11-29 02:01:49,124 INFO L226 Difference]: Without dead ends: 4346 [2023-11-29 02:01:49,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:01:49,125 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 340 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:01:49,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 958 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 02:01:49,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4346 states. [2023-11-29 02:01:49,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4346 to 4248. [2023-11-29 02:01:49,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4248 states, 3869 states have (on average 1.5161540449728612) internal successors, (5866), 3918 states have internal predecessors, (5866), 320 states have call successors, (320), 9 states have call predecessors, (320), 9 states have return successors, (320), 320 states have call predecessors, (320), 320 states have call successors, (320) [2023-11-29 02:01:49,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4248 states to 4248 states and 6506 transitions. [2023-11-29 02:01:49,515 INFO L78 Accepts]: Start accepts. Automaton has 4248 states and 6506 transitions. Word has length 102 [2023-11-29 02:01:49,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:01:49,515 INFO L495 AbstractCegarLoop]: Abstraction has 4248 states and 6506 transitions. [2023-11-29 02:01:49,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:49,515 INFO L276 IsEmpty]: Start isEmpty. Operand 4248 states and 6506 transitions. [2023-11-29 02:01:49,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 02:01:49,516 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:01:49,516 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:01:49,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2023-11-29 02:01:49,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:49,716 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:01:49,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:01:49,716 INFO L85 PathProgramCache]: Analyzing trace with hash 59773651, now seen corresponding path program 1 times [2023-11-29 02:01:49,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:01:49,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578832381] [2023-11-29 02:01:49,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:49,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:01:49,722 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:01:49,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1514471246] [2023-11-29 02:01:49,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:49,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:49,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:01:49,723 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:01:49,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2023-11-29 02:01:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:01:49,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:01:49,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:01:49,907 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-29 02:01:49,907 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:01:53,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:01:53,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578832381] [2023-11-29 02:01:53,701 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:01:53,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514471246] [2023-11-29 02:01:53,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514471246] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:01:53,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:01:53,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 02:01:53,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441360070] [2023-11-29 02:01:53,701 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:01:53,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:01:53,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:01:53,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:01:53,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=51, Unknown=1, NotChecked=0, Total=72 [2023-11-29 02:01:53,702 INFO L87 Difference]: Start difference. First operand 4248 states and 6506 transitions. Second operand has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:54,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:01:54,672 INFO L93 Difference]: Finished difference Result 4354 states and 6593 transitions. [2023-11-29 02:01:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:01:54,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 103 [2023-11-29 02:01:54,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:01:54,678 INFO L225 Difference]: With dead ends: 4354 [2023-11-29 02:01:54,678 INFO L226 Difference]: Without dead ends: 4353 [2023-11-29 02:01:54,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=25, Invalid=64, Unknown=1, NotChecked=0, Total=90 [2023-11-29 02:01:54,679 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 116 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:01:54,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 813 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:01:54,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4353 states. [2023-11-29 02:01:55,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4353 to 4266. [2023-11-29 02:01:55,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4266 states, 3887 states have (on average 1.514792899408284) internal successors, (5888), 3936 states have internal predecessors, (5888), 320 states have call successors, (320), 9 states have call predecessors, (320), 9 states have return successors, (320), 320 states have call predecessors, (320), 320 states have call successors, (320) [2023-11-29 02:01:55,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4266 states to 4266 states and 6528 transitions. [2023-11-29 02:01:55,067 INFO L78 Accepts]: Start accepts. Automaton has 4266 states and 6528 transitions. Word has length 103 [2023-11-29 02:01:55,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:01:55,067 INFO L495 AbstractCegarLoop]: Abstraction has 4266 states and 6528 transitions. [2023-11-29 02:01:55,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:01:55,067 INFO L276 IsEmpty]: Start isEmpty. Operand 4266 states and 6528 transitions. [2023-11-29 02:01:55,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 02:01:55,068 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:01:55,068 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:01:55,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2023-11-29 02:01:55,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:55,268 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:01:55,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:01:55,269 INFO L85 PathProgramCache]: Analyzing trace with hash 470506295, now seen corresponding path program 1 times [2023-11-29 02:01:55,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:01:55,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847290165] [2023-11-29 02:01:55,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:55,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:01:55,274 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:01:55,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [953171003] [2023-11-29 02:01:55,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:01:55,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:01:55,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:01:55,275 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:01:55,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2023-11-29 02:01:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:01:55,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 52 conjunts are in the unsatisfiable core [2023-11-29 02:01:55,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:01:56,799 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 02:01:56,799 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:01:59,483 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 02:01:59,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:01:59,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847290165] [2023-11-29 02:01:59,484 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:01:59,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953171003] [2023-11-29 02:01:59,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953171003] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:01:59,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:01:59,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 27 [2023-11-29 02:01:59,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718052465] [2023-11-29 02:01:59,484 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:01:59,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 02:01:59,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:01:59,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 02:01:59,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=654, Unknown=0, NotChecked=0, Total=756 [2023-11-29 02:01:59,486 INFO L87 Difference]: Start difference. First operand 4266 states and 6528 transitions. Second operand has 28 states, 27 states have (on average 5.777777777777778) internal successors, (156), 28 states have internal predecessors, (156), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2023-11-29 02:03:25,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 02:03:35,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:03:35,817 INFO L93 Difference]: Finished difference Result 4918 states and 7356 transitions. [2023-11-29 02:03:35,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-11-29 02:03:35,818 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 5.777777777777778) internal successors, (156), 28 states have internal predecessors, (156), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) Word has length 103 [2023-11-29 02:03:35,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:03:35,823 INFO L225 Difference]: With dead ends: 4918 [2023-11-29 02:03:35,823 INFO L226 Difference]: Without dead ends: 4916 [2023-11-29 02:03:35,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1491 ImplicationChecksByTransitivity, 46.0s TimeCoverageRelationStatistics Valid=904, Invalid=5102, Unknown=0, NotChecked=0, Total=6006 [2023-11-29 02:03:35,824 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 1684 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 3641 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 3850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 3641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:03:35,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1687 Valid, 1461 Invalid, 3850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 3641 Invalid, 0 Unknown, 0 Unchecked, 51.2s Time] [2023-11-29 02:03:35,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4916 states. [2023-11-29 02:03:36,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4916 to 4440. [2023-11-29 02:03:36,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4440 states, 4061 states have (on average 1.5188377246983502) internal successors, (6168), 4110 states have internal predecessors, (6168), 320 states have call successors, (320), 9 states have call predecessors, (320), 9 states have return successors, (320), 320 states have call predecessors, (320), 320 states have call successors, (320) [2023-11-29 02:03:36,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4440 states to 4440 states and 6808 transitions. [2023-11-29 02:03:36,505 INFO L78 Accepts]: Start accepts. Automaton has 4440 states and 6808 transitions. Word has length 103 [2023-11-29 02:03:36,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:03:36,505 INFO L495 AbstractCegarLoop]: Abstraction has 4440 states and 6808 transitions. [2023-11-29 02:03:36,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 5.777777777777778) internal successors, (156), 28 states have internal predecessors, (156), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2023-11-29 02:03:36,505 INFO L276 IsEmpty]: Start isEmpty. Operand 4440 states and 6808 transitions. [2023-11-29 02:03:36,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 02:03:36,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:03:36,506 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:03:36,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2023-11-29 02:03:36,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2023-11-29 02:03:36,706 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:03:36,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:03:36,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1852983356, now seen corresponding path program 1 times [2023-11-29 02:03:36,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:03:36,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786508197] [2023-11-29 02:03:36,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:03:36,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:03:36,712 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:03:36,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1556636489] [2023-11-29 02:03:36,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:03:36,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:03:36,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:03:36,713 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:03:36,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2023-11-29 02:03:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:03:36,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:03:36,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:03:37,162 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 5 proven. 24 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:03:37,162 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:03:37,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:03:37,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786508197] [2023-11-29 02:03:37,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:03:37,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556636489] [2023-11-29 02:03:37,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556636489] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:03:37,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:03:37,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 02:03:37,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034433954] [2023-11-29 02:03:37,273 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:03:37,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:03:37,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:03:37,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:03:37,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:03:37,274 INFO L87 Difference]: Start difference. First operand 4440 states and 6808 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:03:39,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:03:39,321 INFO L93 Difference]: Finished difference Result 5093 states and 7674 transitions. [2023-11-29 02:03:39,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 02:03:39,321 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 104 [2023-11-29 02:03:39,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:03:39,327 INFO L225 Difference]: With dead ends: 5093 [2023-11-29 02:03:39,327 INFO L226 Difference]: Without dead ends: 5092 [2023-11-29 02:03:39,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:03:39,328 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 553 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:03:39,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 1140 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 02:03:39,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5092 states. [2023-11-29 02:03:40,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5092 to 4804. [2023-11-29 02:03:40,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4804 states, 4399 states have (on average 1.5301204819277108) internal successors, (6731), 4448 states have internal predecessors, (6731), 346 states have call successors, (346), 9 states have call predecessors, (346), 9 states have return successors, (346), 346 states have call predecessors, (346), 346 states have call successors, (346) [2023-11-29 02:03:40,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4804 states to 4804 states and 7423 transitions. [2023-11-29 02:03:40,058 INFO L78 Accepts]: Start accepts. Automaton has 4804 states and 7423 transitions. Word has length 104 [2023-11-29 02:03:40,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:03:40,058 INFO L495 AbstractCegarLoop]: Abstraction has 4804 states and 7423 transitions. [2023-11-29 02:03:40,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:03:40,058 INFO L276 IsEmpty]: Start isEmpty. Operand 4804 states and 7423 transitions. [2023-11-29 02:03:40,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 02:03:40,059 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:03:40,059 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:03:40,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2023-11-29 02:03:40,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:03:40,260 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:03:40,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:03:40,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1700793463, now seen corresponding path program 1 times [2023-11-29 02:03:40,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:03:40,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971217260] [2023-11-29 02:03:40,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:03:40,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:03:40,266 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:03:40,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [349810076] [2023-11-29 02:03:40,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:03:40,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:03:40,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:03:40,267 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:03:40,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2023-11-29 02:03:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:03:40,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-29 02:03:40,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:03:42,528 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 02:03:42,528 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:03:46,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:03:46,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971217260] [2023-11-29 02:03:46,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:03:46,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349810076] [2023-11-29 02:03:46,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349810076] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:03:46,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:03:46,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 02:03:46,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068600407] [2023-11-29 02:03:46,844 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:03:46,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:03:46,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:03:46,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:03:46,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:03:46,845 INFO L87 Difference]: Start difference. First operand 4804 states and 7423 transitions. Second operand has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 14 states have internal predecessors, (83), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 02:03:50,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:03:50,432 INFO L93 Difference]: Finished difference Result 4864 states and 7449 transitions. [2023-11-29 02:03:50,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:03:50,433 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 14 states have internal predecessors, (83), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 104 [2023-11-29 02:03:50,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:03:50,440 INFO L225 Difference]: With dead ends: 4864 [2023-11-29 02:03:50,440 INFO L226 Difference]: Without dead ends: 4849 [2023-11-29 02:03:50,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2023-11-29 02:03:50,441 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 397 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:03:50,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 973 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 02:03:50,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4849 states. [2023-11-29 02:03:51,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4849 to 4792. [2023-11-29 02:03:51,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4792 states, 4387 states have (on average 1.5313426031456576) internal successors, (6718), 4436 states have internal predecessors, (6718), 346 states have call successors, (346), 9 states have call predecessors, (346), 9 states have return successors, (346), 346 states have call predecessors, (346), 346 states have call successors, (346) [2023-11-29 02:03:51,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4792 states to 4792 states and 7410 transitions. [2023-11-29 02:03:51,191 INFO L78 Accepts]: Start accepts. Automaton has 4792 states and 7410 transitions. Word has length 104 [2023-11-29 02:03:51,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:03:51,191 INFO L495 AbstractCegarLoop]: Abstraction has 4792 states and 7410 transitions. [2023-11-29 02:03:51,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 14 states have internal predecessors, (83), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 02:03:51,191 INFO L276 IsEmpty]: Start isEmpty. Operand 4792 states and 7410 transitions. [2023-11-29 02:03:51,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 02:03:51,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:03:51,192 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:03:51,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2023-11-29 02:03:51,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:03:51,393 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:03:51,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:03:51,393 INFO L85 PathProgramCache]: Analyzing trace with hash 271120295, now seen corresponding path program 1 times [2023-11-29 02:03:51,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:03:51,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325009862] [2023-11-29 02:03:51,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:03:51,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:03:51,398 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:03:51,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1908953688] [2023-11-29 02:03:51,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:03:51,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:03:51,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:03:51,399 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:03:51,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2023-11-29 02:03:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:03:51,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 02:03:51,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:03:51,606 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-29 02:03:51,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:03:51,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:03:51,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325009862] [2023-11-29 02:03:51,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:03:51,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908953688] [2023-11-29 02:03:51,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908953688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:03:51,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:03:51,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 02:03:51,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403445479] [2023-11-29 02:03:51,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:03:51,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:03:51,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:03:51,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:03:51,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:03:51,608 INFO L87 Difference]: Start difference. First operand 4792 states and 7410 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 02:03:52,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:03:52,914 INFO L93 Difference]: Finished difference Result 4817 states and 7415 transitions. [2023-11-29 02:03:52,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:03:52,914 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 107 [2023-11-29 02:03:52,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:03:52,919 INFO L225 Difference]: With dead ends: 4817 [2023-11-29 02:03:52,920 INFO L226 Difference]: Without dead ends: 4816 [2023-11-29 02:03:52,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:03:52,921 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 222 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:03:52,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 564 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:03:52,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4816 states. [2023-11-29 02:03:53,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4816 to 4792. [2023-11-29 02:03:53,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4792 states, 4387 states have (on average 1.5302028721221792) internal successors, (6713), 4436 states have internal predecessors, (6713), 346 states have call successors, (346), 9 states have call predecessors, (346), 9 states have return successors, (346), 346 states have call predecessors, (346), 346 states have call successors, (346) [2023-11-29 02:03:53,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4792 states to 4792 states and 7405 transitions. [2023-11-29 02:03:53,662 INFO L78 Accepts]: Start accepts. Automaton has 4792 states and 7405 transitions. Word has length 107 [2023-11-29 02:03:53,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:03:53,663 INFO L495 AbstractCegarLoop]: Abstraction has 4792 states and 7405 transitions. [2023-11-29 02:03:53,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 02:03:53,663 INFO L276 IsEmpty]: Start isEmpty. Operand 4792 states and 7405 transitions. [2023-11-29 02:03:53,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 02:03:53,663 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:03:53,664 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:03:53,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2023-11-29 02:03:53,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:03:53,864 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:03:53,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:03:53,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1103585661, now seen corresponding path program 1 times [2023-11-29 02:03:53,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:03:53,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411499315] [2023-11-29 02:03:53,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:03:53,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:03:53,871 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:03:53,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [197196967] [2023-11-29 02:03:53,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:03:53,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:03:53,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:03:53,873 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:03:53,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2023-11-29 02:03:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:03:53,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:03:53,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:03:54,050 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 20 proven. 19 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:03:54,050 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:03:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 20 proven. 19 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:03:54,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:03:54,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411499315] [2023-11-29 02:03:54,175 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:03:54,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197196967] [2023-11-29 02:03:54,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197196967] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:03:54,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:03:54,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2023-11-29 02:03:54,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420815436] [2023-11-29 02:03:54,175 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:03:54,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:03:54,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:03:54,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:03:54,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:03:54,176 INFO L87 Difference]: Start difference. First operand 4792 states and 7405 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:03:56,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:03:56,719 INFO L93 Difference]: Finished difference Result 11039 states and 17504 transitions. [2023-11-29 02:03:56,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 02:03:56,719 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 110 [2023-11-29 02:03:56,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:03:56,735 INFO L225 Difference]: With dead ends: 11039 [2023-11-29 02:03:56,735 INFO L226 Difference]: Without dead ends: 10998 [2023-11-29 02:03:56,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 212 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=456, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:03:56,738 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 911 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:03:56,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 1778 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:03:56,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10998 states. [2023-11-29 02:03:57,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10998 to 5735. [2023-11-29 02:03:57,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5735 states, 5262 states have (on average 1.540858988977575) internal successors, (8108), 5311 states have internal predecessors, (8108), 414 states have call successors, (414), 9 states have call predecessors, (414), 9 states have return successors, (414), 414 states have call predecessors, (414), 414 states have call successors, (414) [2023-11-29 02:03:57,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5735 states to 5735 states and 8936 transitions. [2023-11-29 02:03:57,698 INFO L78 Accepts]: Start accepts. Automaton has 5735 states and 8936 transitions. Word has length 110 [2023-11-29 02:03:57,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:03:57,698 INFO L495 AbstractCegarLoop]: Abstraction has 5735 states and 8936 transitions. [2023-11-29 02:03:57,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:03:57,698 INFO L276 IsEmpty]: Start isEmpty. Operand 5735 states and 8936 transitions. [2023-11-29 02:03:57,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 02:03:57,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:03:57,699 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:03:57,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2023-11-29 02:03:57,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2023-11-29 02:03:57,900 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:03:57,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:03:57,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1412093007, now seen corresponding path program 1 times [2023-11-29 02:03:57,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:03:57,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484616119] [2023-11-29 02:03:57,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:03:57,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:03:57,906 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:03:57,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [132071418] [2023-11-29 02:03:57,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:03:57,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:03:57,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:03:57,908 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:03:57,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2023-11-29 02:03:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:03:57,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:03:57,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:03:58,035 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:03:58,035 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:03:58,138 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:03:58,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:03:58,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484616119] [2023-11-29 02:03:58,138 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:03:58,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132071418] [2023-11-29 02:03:58,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132071418] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:03:58,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:03:58,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 02:03:58,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922045362] [2023-11-29 02:03:58,139 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:03:58,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:03:58,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:03:58,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:03:58,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:03:58,140 INFO L87 Difference]: Start difference. First operand 5735 states and 8936 transitions. Second operand has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 02:04:00,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:00,165 INFO L93 Difference]: Finished difference Result 5965 states and 9180 transitions. [2023-11-29 02:04:00,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:04:00,166 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 114 [2023-11-29 02:04:00,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:04:00,172 INFO L225 Difference]: With dead ends: 5965 [2023-11-29 02:04:00,172 INFO L226 Difference]: Without dead ends: 5964 [2023-11-29 02:04:00,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:04:00,173 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 498 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:04:00,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 668 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 02:04:00,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5964 states. [2023-11-29 02:04:01,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5964 to 5826. [2023-11-29 02:04:01,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5340 states have (on average 1.5368913857677902) internal successors, (8207), 5389 states have internal predecessors, (8207), 427 states have call successors, (427), 9 states have call predecessors, (427), 9 states have return successors, (427), 427 states have call predecessors, (427), 427 states have call successors, (427) [2023-11-29 02:04:01,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 9061 transitions. [2023-11-29 02:04:01,106 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 9061 transitions. Word has length 114 [2023-11-29 02:04:01,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:04:01,106 INFO L495 AbstractCegarLoop]: Abstraction has 5826 states and 9061 transitions. [2023-11-29 02:04:01,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 10 states have internal predecessors, (134), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 02:04:01,106 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 9061 transitions. [2023-11-29 02:04:01,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 02:04:01,107 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:04:01,107 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:01,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2023-11-29 02:04:01,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:01,308 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:04:01,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:01,308 INFO L85 PathProgramCache]: Analyzing trace with hash -825210126, now seen corresponding path program 1 times [2023-11-29 02:04:01,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:01,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552937776] [2023-11-29 02:04:01,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:01,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:01,315 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:04:01,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [314539120] [2023-11-29 02:04:01,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:01,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:01,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:01,316 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:01,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2023-11-29 02:04:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:01,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:04:01,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:01,441 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:04:01,441 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:01,544 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:04:01,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:01,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552937776] [2023-11-29 02:04:01,544 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:04:01,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314539120] [2023-11-29 02:04:01,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314539120] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:04:01,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:04:01,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 02:04:01,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749055303] [2023-11-29 02:04:01,545 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:01,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:04:01,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:01,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:04:01,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:04:01,546 INFO L87 Difference]: Start difference. First operand 5826 states and 9061 transitions. Second operand has 10 states, 9 states have (on average 15.11111111111111) internal successors, (136), 10 states have internal predecessors, (136), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 02:04:03,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:03,121 INFO L93 Difference]: Finished difference Result 5966 states and 9178 transitions. [2023-11-29 02:04:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:04:03,121 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.11111111111111) internal successors, (136), 10 states have internal predecessors, (136), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 115 [2023-11-29 02:04:03,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:04:03,128 INFO L225 Difference]: With dead ends: 5966 [2023-11-29 02:04:03,128 INFO L226 Difference]: Without dead ends: 5964 [2023-11-29 02:04:03,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:04:03,129 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 778 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:04:03,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 383 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:04:03,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5964 states. [2023-11-29 02:04:03,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5964 to 4573. [2023-11-29 02:04:03,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4573 states, 4180 states have (on average 1.5028708133971291) internal successors, (6282), 4228 states have internal predecessors, (6282), 335 states have call successors, (335), 9 states have call predecessors, (335), 9 states have return successors, (335), 335 states have call predecessors, (335), 335 states have call successors, (335) [2023-11-29 02:04:03,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4573 states to 4573 states and 6952 transitions. [2023-11-29 02:04:03,967 INFO L78 Accepts]: Start accepts. Automaton has 4573 states and 6952 transitions. Word has length 115 [2023-11-29 02:04:03,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:04:03,967 INFO L495 AbstractCegarLoop]: Abstraction has 4573 states and 6952 transitions. [2023-11-29 02:04:03,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.11111111111111) internal successors, (136), 10 states have internal predecessors, (136), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 02:04:03,967 INFO L276 IsEmpty]: Start isEmpty. Operand 4573 states and 6952 transitions. [2023-11-29 02:04:03,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 02:04:03,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:04:03,968 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:03,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2023-11-29 02:04:04,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:04,169 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:04:04,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:04,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1542022977, now seen corresponding path program 1 times [2023-11-29 02:04:04,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:04,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906567124] [2023-11-29 02:04:04,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:04,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:04,176 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:04:04,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2060927461] [2023-11-29 02:04:04,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:04,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:04,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:04,177 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:04,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2023-11-29 02:04:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:04,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:04:04,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:04,307 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:04:04,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:04:04,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:04,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906567124] [2023-11-29 02:04:04,308 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:04:04,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060927461] [2023-11-29 02:04:04,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060927461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:04:04,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:04:04,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:04:04,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761600394] [2023-11-29 02:04:04,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:04:04,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:04:04,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:04,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:04:04,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:04:04,309 INFO L87 Difference]: Start difference. First operand 4573 states and 6952 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 02:04:05,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:05,116 INFO L93 Difference]: Finished difference Result 4603 states and 6974 transitions. [2023-11-29 02:04:05,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:04:05,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 117 [2023-11-29 02:04:05,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:04:05,122 INFO L225 Difference]: With dead ends: 4603 [2023-11-29 02:04:05,122 INFO L226 Difference]: Without dead ends: 4602 [2023-11-29 02:04:05,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:04:05,124 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 29 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:04:05,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 456 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:04:05,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4602 states. [2023-11-29 02:04:05,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4602 to 4561. [2023-11-29 02:04:05,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4561 states, 4169 states have (on average 1.4970016790597265) internal successors, (6241), 4216 states have internal predecessors, (6241), 335 states have call successors, (335), 9 states have call predecessors, (335), 9 states have return successors, (335), 335 states have call predecessors, (335), 335 states have call successors, (335) [2023-11-29 02:04:05,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4561 states to 4561 states and 6911 transitions. [2023-11-29 02:04:05,873 INFO L78 Accepts]: Start accepts. Automaton has 4561 states and 6911 transitions. Word has length 117 [2023-11-29 02:04:05,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:04:05,874 INFO L495 AbstractCegarLoop]: Abstraction has 4561 states and 6911 transitions. [2023-11-29 02:04:05,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 02:04:05,874 INFO L276 IsEmpty]: Start isEmpty. Operand 4561 states and 6911 transitions. [2023-11-29 02:04:05,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 02:04:05,874 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:04:05,874 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:05,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2023-11-29 02:04:06,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable92 [2023-11-29 02:04:06,075 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:04:06,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:06,075 INFO L85 PathProgramCache]: Analyzing trace with hash 558073752, now seen corresponding path program 1 times [2023-11-29 02:04:06,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:06,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601326937] [2023-11-29 02:04:06,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:06,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:06,082 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:04:06,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1196646933] [2023-11-29 02:04:06,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:06,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:06,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:06,083 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:06,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2023-11-29 02:04:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:06,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:04:06,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:06,205 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:04:06,205 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:06,287 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:04:06,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:06,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601326937] [2023-11-29 02:04:06,288 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:04:06,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196646933] [2023-11-29 02:04:06,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196646933] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:04:06,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:04:06,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 02:04:06,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142335449] [2023-11-29 02:04:06,288 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:06,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:04:06,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:06,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:04:06,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:04:06,289 INFO L87 Difference]: Start difference. First operand 4561 states and 6911 transitions. Second operand has 6 states, 5 states have (on average 26.2) internal successors, (131), 6 states have internal predecessors, (131), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 02:04:07,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:07,587 INFO L93 Difference]: Finished difference Result 6239 states and 9504 transitions. [2023-11-29 02:04:07,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:04:07,588 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.2) internal successors, (131), 6 states have internal predecessors, (131), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 118 [2023-11-29 02:04:07,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:04:07,595 INFO L225 Difference]: With dead ends: 6239 [2023-11-29 02:04:07,595 INFO L226 Difference]: Without dead ends: 6238 [2023-11-29 02:04:07,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:04:07,596 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 164 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:04:07,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 477 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:04:07,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6238 states. [2023-11-29 02:04:08,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6238 to 5907. [2023-11-29 02:04:08,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5907 states, 5354 states have (on average 1.5164363093014568) internal successors, (8119), 5401 states have internal predecessors, (8119), 496 states have call successors, (496), 9 states have call predecessors, (496), 9 states have return successors, (496), 496 states have call predecessors, (496), 496 states have call successors, (496) [2023-11-29 02:04:08,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5907 states to 5907 states and 9111 transitions. [2023-11-29 02:04:08,853 INFO L78 Accepts]: Start accepts. Automaton has 5907 states and 9111 transitions. Word has length 118 [2023-11-29 02:04:08,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:04:08,853 INFO L495 AbstractCegarLoop]: Abstraction has 5907 states and 9111 transitions. [2023-11-29 02:04:08,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.2) internal successors, (131), 6 states have internal predecessors, (131), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 02:04:08,853 INFO L276 IsEmpty]: Start isEmpty. Operand 5907 states and 9111 transitions. [2023-11-29 02:04:08,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 02:04:08,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:04:08,854 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:08,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:09,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:09,055 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:04:09,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:09,055 INFO L85 PathProgramCache]: Analyzing trace with hash 62173981, now seen corresponding path program 1 times [2023-11-29 02:04:09,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:09,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712965599] [2023-11-29 02:04:09,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:09,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:09,060 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:04:09,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1408839455] [2023-11-29 02:04:09,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:09,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:09,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:09,062 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:09,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2023-11-29 02:04:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:09,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:04:09,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:10,581 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 02:04:10,581 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:10,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:10,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712965599] [2023-11-29 02:04:10,655 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:04:10,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408839455] [2023-11-29 02:04:10,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408839455] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:04:10,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:04:10,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 02:04:10,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915374366] [2023-11-29 02:04:10,656 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:10,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:04:10,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:10,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:04:10,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:04:10,657 INFO L87 Difference]: Start difference. First operand 5907 states and 9111 transitions. Second operand has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 10 states have internal predecessors, (87), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:04:13,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:13,288 INFO L93 Difference]: Finished difference Result 5983 states and 9163 transitions. [2023-11-29 02:04:13,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:04:13,289 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 10 states have internal predecessors, (87), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 116 [2023-11-29 02:04:13,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:04:13,295 INFO L225 Difference]: With dead ends: 5983 [2023-11-29 02:04:13,295 INFO L226 Difference]: Without dead ends: 5982 [2023-11-29 02:04:13,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:04:13,297 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 239 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:04:13,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1039 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 02:04:13,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5982 states. [2023-11-29 02:04:14,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5982 to 5907. [2023-11-29 02:04:14,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5907 states, 5354 states have (on average 1.5145685468808368) internal successors, (8109), 5401 states have internal predecessors, (8109), 496 states have call successors, (496), 9 states have call predecessors, (496), 9 states have return successors, (496), 496 states have call predecessors, (496), 496 states have call successors, (496) [2023-11-29 02:04:14,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5907 states to 5907 states and 9101 transitions. [2023-11-29 02:04:14,342 INFO L78 Accepts]: Start accepts. Automaton has 5907 states and 9101 transitions. Word has length 116 [2023-11-29 02:04:14,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:04:14,342 INFO L495 AbstractCegarLoop]: Abstraction has 5907 states and 9101 transitions. [2023-11-29 02:04:14,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 10 states have internal predecessors, (87), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:04:14,342 INFO L276 IsEmpty]: Start isEmpty. Operand 5907 states and 9101 transitions. [2023-11-29 02:04:14,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 02:04:14,343 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:04:14,343 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:14,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2023-11-29 02:04:14,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:14,543 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:04:14,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:14,543 INFO L85 PathProgramCache]: Analyzing trace with hash -563540200, now seen corresponding path program 1 times [2023-11-29 02:04:14,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:14,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051289621] [2023-11-29 02:04:14,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:14,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:14,549 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:04:14,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1482504737] [2023-11-29 02:04:14,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:14,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:14,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:14,550 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:14,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2023-11-29 02:04:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:14,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:04:14,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:14,759 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:04:14,759 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:14,862 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:04:14,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:14,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051289621] [2023-11-29 02:04:14,862 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:04:14,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482504737] [2023-11-29 02:04:14,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482504737] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:04:14,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:04:14,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 02:04:14,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472572702] [2023-11-29 02:04:14,863 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:14,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:04:14,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:14,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:04:14,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:04:14,864 INFO L87 Difference]: Start difference. First operand 5907 states and 9101 transitions. Second operand has 8 states, 7 states have (on average 20.0) internal successors, (140), 8 states have internal predecessors, (140), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 02:04:17,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:17,193 INFO L93 Difference]: Finished difference Result 9094 states and 14048 transitions. [2023-11-29 02:04:17,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:04:17,194 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 20.0) internal successors, (140), 8 states have internal predecessors, (140), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 120 [2023-11-29 02:04:17,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:04:17,204 INFO L225 Difference]: With dead ends: 9094 [2023-11-29 02:04:17,204 INFO L226 Difference]: Without dead ends: 9093 [2023-11-29 02:04:17,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:04:17,206 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 514 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:04:17,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 762 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:04:17,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9093 states. [2023-11-29 02:04:18,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9093 to 7346. [2023-11-29 02:04:18,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7346 states, 6641 states have (on average 1.5298900767956634) internal successors, (10160), 6688 states have internal predecessors, (10160), 648 states have call successors, (648), 9 states have call predecessors, (648), 9 states have return successors, (648), 648 states have call predecessors, (648), 648 states have call successors, (648) [2023-11-29 02:04:18,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7346 states to 7346 states and 11456 transitions. [2023-11-29 02:04:18,564 INFO L78 Accepts]: Start accepts. Automaton has 7346 states and 11456 transitions. Word has length 120 [2023-11-29 02:04:18,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:04:18,564 INFO L495 AbstractCegarLoop]: Abstraction has 7346 states and 11456 transitions. [2023-11-29 02:04:18,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 20.0) internal successors, (140), 8 states have internal predecessors, (140), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 02:04:18,565 INFO L276 IsEmpty]: Start isEmpty. Operand 7346 states and 11456 transitions. [2023-11-29 02:04:18,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 02:04:18,565 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:04:18,565 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:18,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Forceful destruction successful, exit code 0 [2023-11-29 02:04:18,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:18,766 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:04:18,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:18,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1910999716, now seen corresponding path program 1 times [2023-11-29 02:04:18,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:18,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663486027] [2023-11-29 02:04:18,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:18,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:18,773 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:04:18,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1109812575] [2023-11-29 02:04:18,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:18,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:18,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:18,774 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:18,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2023-11-29 02:04:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:18,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:04:18,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:19,020 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 8 proven. 51 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:04:19,020 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:19,292 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 8 proven. 51 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:04:19,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:19,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663486027] [2023-11-29 02:04:19,293 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:04:19,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109812575] [2023-11-29 02:04:19,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109812575] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:04:19,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:04:19,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 34 [2023-11-29 02:04:19,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523979754] [2023-11-29 02:04:19,293 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:19,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 02:04:19,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:19,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 02:04:19,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=893, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 02:04:19,295 INFO L87 Difference]: Start difference. First operand 7346 states and 11456 transitions. Second operand has 34 states, 34 states have (on average 5.352941176470588) internal successors, (182), 34 states have internal predecessors, (182), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 02:04:21,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:21,064 INFO L93 Difference]: Finished difference Result 11993 states and 19127 transitions. [2023-11-29 02:04:21,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-29 02:04:21,065 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.352941176470588) internal successors, (182), 34 states have internal predecessors, (182), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 117 [2023-11-29 02:04:21,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:04:21,074 INFO L225 Difference]: With dead ends: 11993 [2023-11-29 02:04:21,074 INFO L226 Difference]: Without dead ends: 7493 [2023-11-29 02:04:21,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=712, Invalid=2710, Unknown=0, NotChecked=0, Total=3422 [2023-11-29 02:04:21,079 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 204 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:04:21,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 1534 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:04:21,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7493 states. [2023-11-29 02:04:22,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7493 to 7421. [2023-11-29 02:04:22,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7421 states, 6711 states have (on average 1.527641186112353) internal successors, (10252), 6758 states have internal predecessors, (10252), 652 states have call successors, (652), 10 states have call predecessors, (652), 10 states have return successors, (652), 652 states have call predecessors, (652), 652 states have call successors, (652) [2023-11-29 02:04:22,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7421 states to 7421 states and 11556 transitions. [2023-11-29 02:04:22,575 INFO L78 Accepts]: Start accepts. Automaton has 7421 states and 11556 transitions. Word has length 117 [2023-11-29 02:04:22,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:04:22,576 INFO L495 AbstractCegarLoop]: Abstraction has 7421 states and 11556 transitions. [2023-11-29 02:04:22,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.352941176470588) internal successors, (182), 34 states have internal predecessors, (182), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 02:04:22,576 INFO L276 IsEmpty]: Start isEmpty. Operand 7421 states and 11556 transitions. [2023-11-29 02:04:22,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 02:04:22,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:04:22,577 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:22,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2023-11-29 02:04:22,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:22,777 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:04:22,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:22,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1008974115, now seen corresponding path program 1 times [2023-11-29 02:04:22,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:22,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649165846] [2023-11-29 02:04:22,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:22,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:22,783 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:04:22,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1613908326] [2023-11-29 02:04:22,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:22,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:22,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:22,784 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:22,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2023-11-29 02:04:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:22,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 02:04:22,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:23,489 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:04:23,489 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:23,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:23,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649165846] [2023-11-29 02:04:23,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:04:23,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613908326] [2023-11-29 02:04:23,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613908326] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:04:23,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:04:23,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 02:04:23,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274738392] [2023-11-29 02:04:23,666 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:23,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:04:23,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:23,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:04:23,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:04:23,667 INFO L87 Difference]: Start difference. First operand 7421 states and 11556 transitions. Second operand has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:04:26,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:26,824 INFO L93 Difference]: Finished difference Result 7908 states and 12279 transitions. [2023-11-29 02:04:26,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 02:04:26,825 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 119 [2023-11-29 02:04:26,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:04:26,835 INFO L225 Difference]: With dead ends: 7908 [2023-11-29 02:04:26,835 INFO L226 Difference]: Without dead ends: 7907 [2023-11-29 02:04:26,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:04:26,837 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 502 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:04:26,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1438 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 02:04:26,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7907 states. [2023-11-29 02:04:28,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7907 to 7808. [2023-11-29 02:04:28,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7808 states, 7054 states have (on average 1.5351573575276438) internal successors, (10829), 7101 states have internal predecessors, (10829), 696 states have call successors, (696), 10 states have call predecessors, (696), 10 states have return successors, (696), 696 states have call predecessors, (696), 696 states have call successors, (696) [2023-11-29 02:04:28,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7808 states to 7808 states and 12221 transitions. [2023-11-29 02:04:28,282 INFO L78 Accepts]: Start accepts. Automaton has 7808 states and 12221 transitions. Word has length 119 [2023-11-29 02:04:28,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:04:28,283 INFO L495 AbstractCegarLoop]: Abstraction has 7808 states and 12221 transitions. [2023-11-29 02:04:28,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 13 states have internal predecessors, (95), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:04:28,283 INFO L276 IsEmpty]: Start isEmpty. Operand 7808 states and 12221 transitions. [2023-11-29 02:04:28,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 02:04:28,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:04:28,284 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:28,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2023-11-29 02:04:28,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97 [2023-11-29 02:04:28,484 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:04:28,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:28,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1213426584, now seen corresponding path program 1 times [2023-11-29 02:04:28,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:28,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527022462] [2023-11-29 02:04:28,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:28,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:28,492 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:04:28,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1005586520] [2023-11-29 02:04:28,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:28,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:28,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:28,494 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:28,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2023-11-29 02:04:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:28,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 02:04:28,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:29,130 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:04:29,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:30,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:30,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527022462] [2023-11-29 02:04:30,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:04:30,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005586520] [2023-11-29 02:04:30,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005586520] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:04:30,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:04:30,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 02:04:30,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234341380] [2023-11-29 02:04:30,188 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:30,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:04:30,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:30,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:04:30,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:04:30,188 INFO L87 Difference]: Start difference. First operand 7808 states and 12221 transitions. Second operand has 13 states, 12 states have (on average 8.0) internal successors, (96), 13 states have internal predecessors, (96), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:04:33,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:33,706 INFO L93 Difference]: Finished difference Result 7907 states and 12267 transitions. [2023-11-29 02:04:33,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 02:04:33,707 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.0) internal successors, (96), 13 states have internal predecessors, (96), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 120 [2023-11-29 02:04:33,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:04:33,715 INFO L225 Difference]: With dead ends: 7907 [2023-11-29 02:04:33,716 INFO L226 Difference]: Without dead ends: 7906 [2023-11-29 02:04:33,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:04:33,717 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 555 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:04:33,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1387 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 02:04:33,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7906 states. [2023-11-29 02:04:35,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7906 to 7808. [2023-11-29 02:04:35,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7808 states, 7054 states have (on average 1.5334561950666288) internal successors, (10817), 7101 states have internal predecessors, (10817), 696 states have call successors, (696), 10 states have call predecessors, (696), 10 states have return successors, (696), 696 states have call predecessors, (696), 696 states have call successors, (696) [2023-11-29 02:04:35,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7808 states to 7808 states and 12209 transitions. [2023-11-29 02:04:35,146 INFO L78 Accepts]: Start accepts. Automaton has 7808 states and 12209 transitions. Word has length 120 [2023-11-29 02:04:35,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:04:35,146 INFO L495 AbstractCegarLoop]: Abstraction has 7808 states and 12209 transitions. [2023-11-29 02:04:35,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.0) internal successors, (96), 13 states have internal predecessors, (96), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:04:35,146 INFO L276 IsEmpty]: Start isEmpty. Operand 7808 states and 12209 transitions. [2023-11-29 02:04:35,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 02:04:35,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:04:35,147 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:35,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2023-11-29 02:04:35,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2023-11-29 02:04:35,348 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:04:35,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:35,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1038481467, now seen corresponding path program 1 times [2023-11-29 02:04:35,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:35,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76814976] [2023-11-29 02:04:35,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:35,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:35,353 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:04:35,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [143458365] [2023-11-29 02:04:35,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:35,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:35,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:35,354 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:35,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2023-11-29 02:04:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:35,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:04:35,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:35,984 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:04:35,984 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:36,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:36,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76814976] [2023-11-29 02:04:36,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:04:36,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143458365] [2023-11-29 02:04:36,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143458365] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:04:36,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:04:36,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 02:04:36,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138538506] [2023-11-29 02:04:36,140 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:36,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:04:36,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:36,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:04:36,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:04:36,141 INFO L87 Difference]: Start difference. First operand 7808 states and 12209 transitions. Second operand has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:04:39,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:39,478 INFO L93 Difference]: Finished difference Result 7892 states and 12237 transitions. [2023-11-29 02:04:39,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:04:39,479 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 121 [2023-11-29 02:04:39,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:04:39,488 INFO L225 Difference]: With dead ends: 7892 [2023-11-29 02:04:39,488 INFO L226 Difference]: Without dead ends: 7891 [2023-11-29 02:04:39,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2023-11-29 02:04:39,489 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 539 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:04:39,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1375 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 02:04:39,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7891 states. [2023-11-29 02:04:40,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7891 to 7808. [2023-11-29 02:04:40,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7808 states, 7054 states have (on average 1.5317550326056137) internal successors, (10805), 7101 states have internal predecessors, (10805), 696 states have call successors, (696), 10 states have call predecessors, (696), 10 states have return successors, (696), 696 states have call predecessors, (696), 696 states have call successors, (696) [2023-11-29 02:04:40,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7808 states to 7808 states and 12197 transitions. [2023-11-29 02:04:40,931 INFO L78 Accepts]: Start accepts. Automaton has 7808 states and 12197 transitions. Word has length 121 [2023-11-29 02:04:40,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:04:40,932 INFO L495 AbstractCegarLoop]: Abstraction has 7808 states and 12197 transitions. [2023-11-29 02:04:40,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.818181818181818) internal successors, (97), 12 states have internal predecessors, (97), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:04:40,932 INFO L276 IsEmpty]: Start isEmpty. Operand 7808 states and 12197 transitions. [2023-11-29 02:04:40,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 02:04:40,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:04:40,933 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:40,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2023-11-29 02:04:41,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2023-11-29 02:04:41,133 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:04:41,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:41,133 INFO L85 PathProgramCache]: Analyzing trace with hash -2128154310, now seen corresponding path program 1 times [2023-11-29 02:04:41,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:41,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844915086] [2023-11-29 02:04:41,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:41,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:41,139 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:04:41,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1003991989] [2023-11-29 02:04:41,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:41,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:41,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:41,140 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:41,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2023-11-29 02:04:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:41,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:04:41,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:41,783 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 02:04:41,783 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:42,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:42,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844915086] [2023-11-29 02:04:42,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:04:42,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003991989] [2023-11-29 02:04:42,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003991989] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:04:42,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:04:42,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 02:04:42,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903287563] [2023-11-29 02:04:42,208 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:42,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:04:42,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:42,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:04:42,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:04:42,209 INFO L87 Difference]: Start difference. First operand 7808 states and 12197 transitions. Second operand has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 12 states have internal predecessors, (98), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:04:46,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:46,042 INFO L93 Difference]: Finished difference Result 7891 states and 12225 transitions. [2023-11-29 02:04:46,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:04:46,043 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 12 states have internal predecessors, (98), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 122 [2023-11-29 02:04:46,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:04:46,052 INFO L225 Difference]: With dead ends: 7891 [2023-11-29 02:04:46,052 INFO L226 Difference]: Without dead ends: 7890 [2023-11-29 02:04:46,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2023-11-29 02:04:46,053 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 546 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:04:46,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 1355 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 02:04:46,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7890 states. [2023-11-29 02:04:47,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7890 to 7808. [2023-11-29 02:04:47,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7808 states, 7054 states have (on average 1.5300538701445987) internal successors, (10793), 7101 states have internal predecessors, (10793), 696 states have call successors, (696), 10 states have call predecessors, (696), 10 states have return successors, (696), 696 states have call predecessors, (696), 696 states have call successors, (696) [2023-11-29 02:04:47,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7808 states to 7808 states and 12185 transitions. [2023-11-29 02:04:47,490 INFO L78 Accepts]: Start accepts. Automaton has 7808 states and 12185 transitions. Word has length 122 [2023-11-29 02:04:47,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:04:47,490 INFO L495 AbstractCegarLoop]: Abstraction has 7808 states and 12185 transitions. [2023-11-29 02:04:47,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.909090909090908) internal successors, (98), 12 states have internal predecessors, (98), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 02:04:47,490 INFO L276 IsEmpty]: Start isEmpty. Operand 7808 states and 12185 transitions. [2023-11-29 02:04:47,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 02:04:47,490 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:04:47,491 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:47,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2023-11-29 02:04:47,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2023-11-29 02:04:47,691 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:04:47,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:47,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1378895859, now seen corresponding path program 1 times [2023-11-29 02:04:47,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:47,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949638132] [2023-11-29 02:04:47,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:47,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:47,699 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:04:47,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1438485816] [2023-11-29 02:04:47,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:47,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:47,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:47,700 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:47,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2023-11-29 02:04:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:47,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:04:47,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:47,887 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 26 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 02:04:47,887 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:04:47,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:04:47,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949638132] [2023-11-29 02:04:47,919 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:04:47,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438485816] [2023-11-29 02:04:47,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438485816] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:04:47,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:04:47,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 02:04:47,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778312790] [2023-11-29 02:04:47,919 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:04:47,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:04:47,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:04:47,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:04:47,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:04:47,920 INFO L87 Difference]: Start difference. First operand 7808 states and 12185 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 02:04:52,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:04:52,321 INFO L93 Difference]: Finished difference Result 16415 states and 26303 transitions. [2023-11-29 02:04:52,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 02:04:52,322 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 124 [2023-11-29 02:04:52,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:04:52,348 INFO L225 Difference]: With dead ends: 16415 [2023-11-29 02:04:52,348 INFO L226 Difference]: Without dead ends: 16385 [2023-11-29 02:04:52,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:04:52,351 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 831 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:04:52,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 1543 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 02:04:52,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16385 states. [2023-11-29 02:04:54,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16385 to 12573. [2023-11-29 02:04:54,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12573 states, 11381 states have (on average 1.5692821368948247) internal successors, (17860), 11428 states have internal predecessors, (17860), 1134 states have call successors, (1134), 10 states have call predecessors, (1134), 10 states have return successors, (1134), 1134 states have call predecessors, (1134), 1134 states have call successors, (1134) [2023-11-29 02:04:54,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12573 states to 12573 states and 20128 transitions. [2023-11-29 02:04:54,843 INFO L78 Accepts]: Start accepts. Automaton has 12573 states and 20128 transitions. Word has length 124 [2023-11-29 02:04:54,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:04:54,843 INFO L495 AbstractCegarLoop]: Abstraction has 12573 states and 20128 transitions. [2023-11-29 02:04:54,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 02:04:54,844 INFO L276 IsEmpty]: Start isEmpty. Operand 12573 states and 20128 transitions. [2023-11-29 02:04:54,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 02:04:54,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:04:54,844 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:04:54,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2023-11-29 02:04:55,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2023-11-29 02:04:55,045 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:04:55,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:04:55,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1548274073, now seen corresponding path program 1 times [2023-11-29 02:04:55,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:04:55,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99143282] [2023-11-29 02:04:55,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:55,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:04:55,052 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:04:55,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [733003482] [2023-11-29 02:04:55,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:04:55,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:04:55,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:04:55,054 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:04:55,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2023-11-29 02:04:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:04:55,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 02:04:55,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:04:56,197 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 69 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 02:04:56,197 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:05:01,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:05:01,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99143282] [2023-11-29 02:05:01,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:05:01,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733003482] [2023-11-29 02:05:01,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733003482] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:05:01,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:05:01,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 02:05:01,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086497395] [2023-11-29 02:05:01,232 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:05:01,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:05:01,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:05:01,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:05:01,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=263, Unknown=1, NotChecked=0, Total=306 [2023-11-29 02:05:01,233 INFO L87 Difference]: Start difference. First operand 12573 states and 20128 transitions. Second operand has 13 states, 12 states have (on average 8.5) internal successors, (102), 13 states have internal predecessors, (102), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 02:05:19,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:05:19,088 INFO L93 Difference]: Finished difference Result 14233 states and 22529 transitions. [2023-11-29 02:05:19,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:05:19,089 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.5) internal successors, (102), 13 states have internal predecessors, (102), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 123 [2023-11-29 02:05:19,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:05:19,108 INFO L225 Difference]: With dead ends: 14233 [2023-11-29 02:05:19,108 INFO L226 Difference]: Without dead ends: 14232 [2023-11-29 02:05:19,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=100, Invalid=549, Unknown=1, NotChecked=0, Total=650 [2023-11-29 02:05:19,111 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 440 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 1733 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:05:19,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 1444 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1733 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2023-11-29 02:05:19,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14232 states. [2023-11-29 02:05:21,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14232 to 13058. [2023-11-29 02:05:21,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13058 states, 11814 states have (on average 1.5712713729473506) internal successors, (18563), 11861 states have internal predecessors, (18563), 1186 states have call successors, (1186), 10 states have call predecessors, (1186), 10 states have return successors, (1186), 1186 states have call predecessors, (1186), 1186 states have call successors, (1186) [2023-11-29 02:05:21,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13058 states to 13058 states and 20935 transitions. [2023-11-29 02:05:21,742 INFO L78 Accepts]: Start accepts. Automaton has 13058 states and 20935 transitions. Word has length 123 [2023-11-29 02:05:21,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:05:21,742 INFO L495 AbstractCegarLoop]: Abstraction has 13058 states and 20935 transitions. [2023-11-29 02:05:21,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.5) internal successors, (102), 13 states have internal predecessors, (102), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 02:05:21,742 INFO L276 IsEmpty]: Start isEmpty. Operand 13058 states and 20935 transitions. [2023-11-29 02:05:21,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 02:05:21,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:05:21,743 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:05:21,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2023-11-29 02:05:21,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2023-11-29 02:05:21,944 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:05:21,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:05:21,944 INFO L85 PathProgramCache]: Analyzing trace with hash -751855908, now seen corresponding path program 1 times [2023-11-29 02:05:21,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:05:21,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304597224] [2023-11-29 02:05:21,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:21,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:05:21,951 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:05:21,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451816018] [2023-11-29 02:05:21,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:05:21,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:05:21,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:05:21,953 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:05:21,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2023-11-29 02:05:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:05:22,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:05:22,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:05:25,036 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 3 proven. 70 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 02:05:25,036 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:05:26,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:05:26,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304597224] [2023-11-29 02:05:26,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:05:26,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451816018] [2023-11-29 02:05:26,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451816018] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:05:26,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:05:26,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 02:05:26,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062354845] [2023-11-29 02:05:26,536 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:05:26,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:05:26,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:05:26,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:05:26,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-29 02:05:26,537 INFO L87 Difference]: Start difference. First operand 13058 states and 20935 transitions. Second operand has 11 states, 10 states have (on average 10.3) internal successors, (103), 11 states have internal predecessors, (103), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 02:05:58,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:05:58,145 INFO L93 Difference]: Finished difference Result 18664 states and 29935 transitions. [2023-11-29 02:05:58,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 02:05:58,146 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.3) internal successors, (103), 11 states have internal predecessors, (103), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 124 [2023-11-29 02:05:58,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:05:58,176 INFO L225 Difference]: With dead ends: 18664 [2023-11-29 02:05:58,176 INFO L226 Difference]: Without dead ends: 18662 [2023-11-29 02:05:58,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=225, Invalid=831, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 02:05:58,179 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 853 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 1417 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:05:58,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 900 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1417 Invalid, 0 Unknown, 0 Unchecked, 22.4s Time] [2023-11-29 02:05:58,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18662 states. [2023-11-29 02:06:01,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18662 to 18247. [2023-11-29 02:06:01,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18247 states, 16483 states have (on average 1.5784747922101559) internal successors, (26018), 16530 states have internal predecessors, (26018), 1706 states have call successors, (1706), 10 states have call predecessors, (1706), 10 states have return successors, (1706), 1706 states have call predecessors, (1706), 1706 states have call successors, (1706) [2023-11-29 02:06:01,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18247 states to 18247 states and 29430 transitions. [2023-11-29 02:06:01,947 INFO L78 Accepts]: Start accepts. Automaton has 18247 states and 29430 transitions. Word has length 124 [2023-11-29 02:06:01,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:06:01,947 INFO L495 AbstractCegarLoop]: Abstraction has 18247 states and 29430 transitions. [2023-11-29 02:06:01,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.3) internal successors, (103), 11 states have internal predecessors, (103), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 02:06:01,948 INFO L276 IsEmpty]: Start isEmpty. Operand 18247 states and 29430 transitions. [2023-11-29 02:06:01,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 02:06:01,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:06:01,948 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:06:01,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Ended with exit code 0 [2023-11-29 02:06:02,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2023-11-29 02:06:02,149 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:06:02,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:06:02,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1931193313, now seen corresponding path program 1 times [2023-11-29 02:06:02,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:06:02,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528146462] [2023-11-29 02:06:02,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:02,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:06:02,158 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:06:02,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134810480] [2023-11-29 02:06:02,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:02,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:06:02,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:06:02,159 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:06:02,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2023-11-29 02:06:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:06:02,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:06:02,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:06:02,390 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 15 proven. 29 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 02:06:02,390 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:06:02,555 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 15 proven. 29 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 02:06:02,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:06:02,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528146462] [2023-11-29 02:06:02,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:06:02,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134810480] [2023-11-29 02:06:02,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134810480] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:06:02,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:06:02,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2023-11-29 02:06:02,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409903687] [2023-11-29 02:06:02,556 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:06:02,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:06:02,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:06:02,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:06:02,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:06:02,557 INFO L87 Difference]: Start difference. First operand 18247 states and 29430 transitions. Second operand has 11 states, 10 states have (on average 16.7) internal successors, (167), 11 states have internal predecessors, (167), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 02:06:11,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:06:11,734 INFO L93 Difference]: Finished difference Result 31270 states and 50375 transitions. [2023-11-29 02:06:11,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-11-29 02:06:11,735 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.7) internal successors, (167), 11 states have internal predecessors, (167), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 131 [2023-11-29 02:06:11,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:06:11,795 INFO L225 Difference]: With dead ends: 31270 [2023-11-29 02:06:11,795 INFO L226 Difference]: Without dead ends: 31269 [2023-11-29 02:06:11,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 575 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=484, Invalid=1496, Unknown=0, NotChecked=0, Total=1980 [2023-11-29 02:06:11,801 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 1468 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:06:11,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1471 Valid, 1467 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 02:06:11,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31269 states. [2023-11-29 02:06:17,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31269 to 25125. [2023-11-29 02:06:17,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25125 states, 22755 states have (on average 1.5844869259503407) internal successors, (36055), 22802 states have internal predecessors, (36055), 2312 states have call successors, (2312), 10 states have call predecessors, (2312), 10 states have return successors, (2312), 2312 states have call predecessors, (2312), 2312 states have call successors, (2312) [2023-11-29 02:06:17,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25125 states to 25125 states and 40679 transitions. [2023-11-29 02:06:17,420 INFO L78 Accepts]: Start accepts. Automaton has 25125 states and 40679 transitions. Word has length 131 [2023-11-29 02:06:17,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:06:17,420 INFO L495 AbstractCegarLoop]: Abstraction has 25125 states and 40679 transitions. [2023-11-29 02:06:17,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.7) internal successors, (167), 11 states have internal predecessors, (167), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 02:06:17,421 INFO L276 IsEmpty]: Start isEmpty. Operand 25125 states and 40679 transitions. [2023-11-29 02:06:17,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 02:06:17,421 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:06:17,421 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:06:17,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2023-11-29 02:06:17,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:06:17,622 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:06:17,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:06:17,622 INFO L85 PathProgramCache]: Analyzing trace with hash 431500925, now seen corresponding path program 1 times [2023-11-29 02:06:17,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:06:17,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832595971] [2023-11-29 02:06:17,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:17,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:06:17,629 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:06:17,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [539768527] [2023-11-29 02:06:17,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:17,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:06:17,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:06:17,630 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:06:17,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2023-11-29 02:06:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:06:17,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:06:17,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:06:17,966 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:06:17,966 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:06:18,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:06:18,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832595971] [2023-11-29 02:06:18,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:06:18,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539768527] [2023-11-29 02:06:18,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539768527] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:06:18,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:06:18,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 02:06:18,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067408878] [2023-11-29 02:06:18,041 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:06:18,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:06:18,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:06:18,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:06:18,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:06:18,042 INFO L87 Difference]: Start difference. First operand 25125 states and 40679 transitions. Second operand has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:06:23,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:06:23,422 INFO L93 Difference]: Finished difference Result 25302 states and 40876 transitions. [2023-11-29 02:06:23,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:06:23,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 132 [2023-11-29 02:06:23,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:06:23,466 INFO L225 Difference]: With dead ends: 25302 [2023-11-29 02:06:23,466 INFO L226 Difference]: Without dead ends: 25301 [2023-11-29 02:06:23,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:06:23,471 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 296 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:06:23,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 381 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:06:23,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25301 states. [2023-11-29 02:06:29,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25301 to 25125. [2023-11-29 02:06:29,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25125 states, 22755 states have (on average 1.5844429795649309) internal successors, (36054), 22802 states have internal predecessors, (36054), 2312 states have call successors, (2312), 10 states have call predecessors, (2312), 10 states have return successors, (2312), 2312 states have call predecessors, (2312), 2312 states have call successors, (2312) [2023-11-29 02:06:29,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25125 states to 25125 states and 40678 transitions. [2023-11-29 02:06:29,204 INFO L78 Accepts]: Start accepts. Automaton has 25125 states and 40678 transitions. Word has length 132 [2023-11-29 02:06:29,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:06:29,205 INFO L495 AbstractCegarLoop]: Abstraction has 25125 states and 40678 transitions. [2023-11-29 02:06:29,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:06:29,205 INFO L276 IsEmpty]: Start isEmpty. Operand 25125 states and 40678 transitions. [2023-11-29 02:06:29,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 02:06:29,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:06:29,206 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:06:29,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Forceful destruction successful, exit code 0 [2023-11-29 02:06:29,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2023-11-29 02:06:29,406 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:06:29,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:06:29,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1874952327, now seen corresponding path program 1 times [2023-11-29 02:06:29,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:06:29,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279840199] [2023-11-29 02:06:29,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:29,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:06:29,414 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:06:29,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1431310891] [2023-11-29 02:06:29,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:29,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:06:29,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:06:29,415 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:06:29,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2023-11-29 02:06:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:06:29,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 02:06:29,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:06:30,504 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 02:06:30,504 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:06:30,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:06:30,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279840199] [2023-11-29 02:06:30,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:06:30,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431310891] [2023-11-29 02:06:30,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431310891] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:06:30,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:06:30,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 02:06:30,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590210913] [2023-11-29 02:06:30,809 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:06:30,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:06:30,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:06:30,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:06:30,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2023-11-29 02:06:30,810 INFO L87 Difference]: Start difference. First operand 25125 states and 40678 transitions. Second operand has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 14 states have internal predecessors, (101), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:06:38,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:06:38,105 INFO L93 Difference]: Finished difference Result 25237 states and 40758 transitions. [2023-11-29 02:06:38,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:06:38,106 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 14 states have internal predecessors, (101), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 130 [2023-11-29 02:06:38,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:06:38,156 INFO L225 Difference]: With dead ends: 25237 [2023-11-29 02:06:38,156 INFO L226 Difference]: Without dead ends: 25236 [2023-11-29 02:06:38,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2023-11-29 02:06:38,161 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 523 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:06:38,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 1436 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 02:06:38,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25236 states. [2023-11-29 02:06:43,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25236 to 25125. [2023-11-29 02:06:43,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25125 states, 22755 states have (on average 1.583915622940013) internal successors, (36042), 22802 states have internal predecessors, (36042), 2312 states have call successors, (2312), 10 states have call predecessors, (2312), 10 states have return successors, (2312), 2312 states have call predecessors, (2312), 2312 states have call successors, (2312) [2023-11-29 02:06:43,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25125 states to 25125 states and 40666 transitions. [2023-11-29 02:06:43,659 INFO L78 Accepts]: Start accepts. Automaton has 25125 states and 40666 transitions. Word has length 130 [2023-11-29 02:06:43,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:06:43,659 INFO L495 AbstractCegarLoop]: Abstraction has 25125 states and 40666 transitions. [2023-11-29 02:06:43,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 14 states have internal predecessors, (101), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:06:43,659 INFO L276 IsEmpty]: Start isEmpty. Operand 25125 states and 40666 transitions. [2023-11-29 02:06:43,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 02:06:43,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:06:43,660 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:06:43,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Ended with exit code 0 [2023-11-29 02:06:43,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2023-11-29 02:06:43,860 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:06:43,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:06:43,861 INFO L85 PathProgramCache]: Analyzing trace with hash -2006019903, now seen corresponding path program 1 times [2023-11-29 02:06:43,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:06:43,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613131682] [2023-11-29 02:06:43,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:43,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:06:43,868 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:06:43,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2098203065] [2023-11-29 02:06:43,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:06:43,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:06:43,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:06:43,869 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:06:43,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2023-11-29 02:06:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:06:43,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 02:06:43,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:06:45,165 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 02:06:45,165 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:06:46,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:06:46,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613131682] [2023-11-29 02:06:46,987 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:06:46,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098203065] [2023-11-29 02:06:46,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098203065] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:06:46,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:06:46,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 02:06:46,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274413643] [2023-11-29 02:06:46,988 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:06:46,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:06:46,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:06:46,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:06:46,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=282, Unknown=1, NotChecked=0, Total=342 [2023-11-29 02:06:46,989 INFO L87 Difference]: Start difference. First operand 25125 states and 40666 transitions. Second operand has 14 states, 13 states have (on average 7.846153846153846) internal successors, (102), 14 states have internal predecessors, (102), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:06:55,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:06:55,530 INFO L93 Difference]: Finished difference Result 25236 states and 40746 transitions. [2023-11-29 02:06:55,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:06:55,530 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.846153846153846) internal successors, (102), 14 states have internal predecessors, (102), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 131 [2023-11-29 02:06:55,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:06:55,572 INFO L225 Difference]: With dead ends: 25236 [2023-11-29 02:06:55,572 INFO L226 Difference]: Without dead ends: 25235 [2023-11-29 02:06:55,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=113, Invalid=536, Unknown=1, NotChecked=0, Total=650 [2023-11-29 02:06:55,576 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 572 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 1787 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:06:55,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 1536 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1787 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 02:06:55,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25235 states. [2023-11-29 02:07:00,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25235 to 25125. [2023-11-29 02:07:00,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25125 states, 22755 states have (on average 1.5833882663150955) internal successors, (36030), 22802 states have internal predecessors, (36030), 2312 states have call successors, (2312), 10 states have call predecessors, (2312), 10 states have return successors, (2312), 2312 states have call predecessors, (2312), 2312 states have call successors, (2312) [2023-11-29 02:07:00,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25125 states to 25125 states and 40654 transitions. [2023-11-29 02:07:00,826 INFO L78 Accepts]: Start accepts. Automaton has 25125 states and 40654 transitions. Word has length 131 [2023-11-29 02:07:00,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:07:00,827 INFO L495 AbstractCegarLoop]: Abstraction has 25125 states and 40654 transitions. [2023-11-29 02:07:00,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.846153846153846) internal successors, (102), 14 states have internal predecessors, (102), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:07:00,827 INFO L276 IsEmpty]: Start isEmpty. Operand 25125 states and 40654 transitions. [2023-11-29 02:07:00,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 02:07:00,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:07:00,828 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:07:00,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Ended with exit code 0 [2023-11-29 02:07:01,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107,104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:07:01,028 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:07:01,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:07:01,028 INFO L85 PathProgramCache]: Analyzing trace with hash -189968822, now seen corresponding path program 1 times [2023-11-29 02:07:01,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:07:01,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151513200] [2023-11-29 02:07:01,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:07:01,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:07:01,036 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:07:01,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844756846] [2023-11-29 02:07:01,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:07:01,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:07:01,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:07:01,037 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:07:01,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2023-11-29 02:07:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:07:01,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:07:01,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:07:01,195 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 10 proven. 28 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:07:01,195 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:07:01,324 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 10 proven. 28 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:07:01,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:07:01,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151513200] [2023-11-29 02:07:01,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:07:01,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844756846] [2023-11-29 02:07:01,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844756846] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:07:01,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:07:01,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 02:07:01,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40433948] [2023-11-29 02:07:01,325 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:07:01,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:07:01,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:07:01,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:07:01,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:07:01,326 INFO L87 Difference]: Start difference. First operand 25125 states and 40654 transitions. Second operand has 14 states, 13 states have (on average 13.384615384615385) internal successors, (174), 14 states have internal predecessors, (174), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 02:07:07,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:07:07,595 INFO L93 Difference]: Finished difference Result 25884 states and 41407 transitions. [2023-11-29 02:07:07,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 02:07:07,595 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.384615384615385) internal successors, (174), 14 states have internal predecessors, (174), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 134 [2023-11-29 02:07:07,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:07:07,638 INFO L225 Difference]: With dead ends: 25884 [2023-11-29 02:07:07,638 INFO L226 Difference]: Without dead ends: 25883 [2023-11-29 02:07:07,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=281, Invalid=649, Unknown=0, NotChecked=0, Total=930 [2023-11-29 02:07:07,643 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 1548 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1552 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:07:07,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1552 Valid, 735 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 02:07:07,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25883 states. [2023-11-29 02:07:12,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25883 to 25125. [2023-11-29 02:07:12,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25125 states, 22755 states have (on average 1.579125466930345) internal successors, (35933), 22802 states have internal predecessors, (35933), 2312 states have call successors, (2312), 10 states have call predecessors, (2312), 10 states have return successors, (2312), 2312 states have call predecessors, (2312), 2312 states have call successors, (2312) [2023-11-29 02:07:12,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25125 states to 25125 states and 40557 transitions. [2023-11-29 02:07:12,897 INFO L78 Accepts]: Start accepts. Automaton has 25125 states and 40557 transitions. Word has length 134 [2023-11-29 02:07:12,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:07:12,897 INFO L495 AbstractCegarLoop]: Abstraction has 25125 states and 40557 transitions. [2023-11-29 02:07:12,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.384615384615385) internal successors, (174), 14 states have internal predecessors, (174), 6 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 02:07:12,897 INFO L276 IsEmpty]: Start isEmpty. Operand 25125 states and 40557 transitions. [2023-11-29 02:07:12,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 02:07:12,898 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:07:12,898 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:07:12,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Ended with exit code 0 [2023-11-29 02:07:13,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:07:13,099 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:07:13,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:07:13,099 INFO L85 PathProgramCache]: Analyzing trace with hash -2057074743, now seen corresponding path program 1 times [2023-11-29 02:07:13,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:07:13,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12858681] [2023-11-29 02:07:13,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:07:13,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:07:13,106 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:07:13,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [45739978] [2023-11-29 02:07:13,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:07:13,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:07:13,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:07:13,107 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:07:13,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2023-11-29 02:07:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:07:13,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 02:07:13,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:07:14,426 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 02:07:14,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:07:16,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:07:16,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12858681] [2023-11-29 02:07:16,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:07:16,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45739978] [2023-11-29 02:07:16,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45739978] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:07:16,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:07:16,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 02:07:16,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865529921] [2023-11-29 02:07:16,680 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:07:16,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 02:07:16,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:07:16,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 02:07:16,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=315, Unknown=3, NotChecked=0, Total=380 [2023-11-29 02:07:16,681 INFO L87 Difference]: Start difference. First operand 25125 states and 40557 transitions. Second operand has 15 states, 14 states have (on average 7.357142857142857) internal successors, (103), 15 states have internal predecessors, (103), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:07:24,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:07:24,701 INFO L93 Difference]: Finished difference Result 25265 states and 40687 transitions. [2023-11-29 02:07:24,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 02:07:24,701 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.357142857142857) internal successors, (103), 15 states have internal predecessors, (103), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 132 [2023-11-29 02:07:24,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:07:24,738 INFO L225 Difference]: With dead ends: 25265 [2023-11-29 02:07:24,738 INFO L226 Difference]: Without dead ends: 25264 [2023-11-29 02:07:24,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=102, Invalid=495, Unknown=3, NotChecked=0, Total=600 [2023-11-29 02:07:24,743 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 583 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 1810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:07:24,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 1414 Invalid, 1810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1785 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 02:07:24,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25264 states. [2023-11-29 02:07:29,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25264 to 25125. [2023-11-29 02:07:29,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25125 states, 22755 states have (on average 1.5785981103054274) internal successors, (35921), 22802 states have internal predecessors, (35921), 2312 states have call successors, (2312), 10 states have call predecessors, (2312), 10 states have return successors, (2312), 2312 states have call predecessors, (2312), 2312 states have call successors, (2312) [2023-11-29 02:07:29,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25125 states to 25125 states and 40545 transitions. [2023-11-29 02:07:29,930 INFO L78 Accepts]: Start accepts. Automaton has 25125 states and 40545 transitions. Word has length 132 [2023-11-29 02:07:29,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:07:29,930 INFO L495 AbstractCegarLoop]: Abstraction has 25125 states and 40545 transitions. [2023-11-29 02:07:29,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.357142857142857) internal successors, (103), 15 states have internal predecessors, (103), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:07:29,930 INFO L276 IsEmpty]: Start isEmpty. Operand 25125 states and 40545 transitions. [2023-11-29 02:07:29,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-29 02:07:29,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:07:29,931 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:07:29,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Ended with exit code 0 [2023-11-29 02:07:30,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:07:30,131 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:07:30,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:07:30,132 INFO L85 PathProgramCache]: Analyzing trace with hash 655192515, now seen corresponding path program 1 times [2023-11-29 02:07:30,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:07:30,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675117826] [2023-11-29 02:07:30,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:07:30,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:07:30,139 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:07:30,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1687753156] [2023-11-29 02:07:30,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:07:30,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:07:30,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:07:30,140 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:07:30,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2023-11-29 02:07:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:07:30,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 02:07:30,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:07:31,468 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 02:07:31,468 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:07:32,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:07:32,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675117826] [2023-11-29 02:07:32,821 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:07:32,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687753156] [2023-11-29 02:07:32,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687753156] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:07:32,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:07:32,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 02:07:32,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985200770] [2023-11-29 02:07:32,821 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:07:32,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 02:07:32,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:07:32,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 02:07:32,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:07:32,822 INFO L87 Difference]: Start difference. First operand 25125 states and 40545 transitions. Second operand has 15 states, 14 states have (on average 7.428571428571429) internal successors, (104), 15 states have internal predecessors, (104), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:07:40,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:07:40,643 INFO L93 Difference]: Finished difference Result 25264 states and 40675 transitions. [2023-11-29 02:07:40,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 02:07:40,644 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.428571428571429) internal successors, (104), 15 states have internal predecessors, (104), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 133 [2023-11-29 02:07:40,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:07:40,681 INFO L225 Difference]: With dead ends: 25264 [2023-11-29 02:07:40,681 INFO L226 Difference]: Without dead ends: 25263 [2023-11-29 02:07:40,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:07:40,686 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 496 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:07:40,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 1698 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1917 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 02:07:40,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25263 states. [2023-11-29 02:07:45,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25263 to 25125. [2023-11-29 02:07:45,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25125 states, 22755 states have (on average 1.5780707536805099) internal successors, (35909), 22802 states have internal predecessors, (35909), 2312 states have call successors, (2312), 10 states have call predecessors, (2312), 10 states have return successors, (2312), 2312 states have call predecessors, (2312), 2312 states have call successors, (2312) [2023-11-29 02:07:45,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25125 states to 25125 states and 40533 transitions. [2023-11-29 02:07:45,910 INFO L78 Accepts]: Start accepts. Automaton has 25125 states and 40533 transitions. Word has length 133 [2023-11-29 02:07:45,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:07:45,910 INFO L495 AbstractCegarLoop]: Abstraction has 25125 states and 40533 transitions. [2023-11-29 02:07:45,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.428571428571429) internal successors, (104), 15 states have internal predecessors, (104), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:07:45,910 INFO L276 IsEmpty]: Start isEmpty. Operand 25125 states and 40533 transitions. [2023-11-29 02:07:45,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 02:07:45,911 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:07:45,911 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:07:45,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Ended with exit code 0 [2023-11-29 02:07:46,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:07:46,111 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:07:46,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:07:46,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1163868405, now seen corresponding path program 1 times [2023-11-29 02:07:46,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:07:46,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131304705] [2023-11-29 02:07:46,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:07:46,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:07:46,119 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:07:46,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [922509095] [2023-11-29 02:07:46,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:07:46,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:07:46,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:07:46,120 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:07:46,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2023-11-29 02:07:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:07:46,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 02:07:46,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:07:47,229 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 02:07:47,229 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:07:47,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:07:47,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131304705] [2023-11-29 02:07:47,301 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:07:47,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922509095] [2023-11-29 02:07:47,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922509095] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:07:47,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:07:47,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 02:07:47,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342651917] [2023-11-29 02:07:47,302 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:07:47,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 02:07:47,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:07:47,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 02:07:47,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:07:47,303 INFO L87 Difference]: Start difference. First operand 25125 states and 40533 transitions. Second operand has 15 states, 14 states have (on average 7.5) internal successors, (105), 15 states have internal predecessors, (105), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:07:54,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:07:54,840 INFO L93 Difference]: Finished difference Result 25263 states and 40663 transitions. [2023-11-29 02:07:54,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 02:07:54,841 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.5) internal successors, (105), 15 states have internal predecessors, (105), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 134 [2023-11-29 02:07:54,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:07:54,878 INFO L225 Difference]: With dead ends: 25263 [2023-11-29 02:07:54,878 INFO L226 Difference]: Without dead ends: 25262 [2023-11-29 02:07:54,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2023-11-29 02:07:54,882 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 380 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 2182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:07:54,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 1912 Invalid, 2182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 02:07:54,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25262 states. [2023-11-29 02:08:00,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25262 to 25125. [2023-11-29 02:08:00,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25125 states, 22755 states have (on average 1.577543397055592) internal successors, (35897), 22802 states have internal predecessors, (35897), 2312 states have call successors, (2312), 10 states have call predecessors, (2312), 10 states have return successors, (2312), 2312 states have call predecessors, (2312), 2312 states have call successors, (2312) [2023-11-29 02:08:00,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25125 states to 25125 states and 40521 transitions. [2023-11-29 02:08:00,072 INFO L78 Accepts]: Start accepts. Automaton has 25125 states and 40521 transitions. Word has length 134 [2023-11-29 02:08:00,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:00,072 INFO L495 AbstractCegarLoop]: Abstraction has 25125 states and 40521 transitions. [2023-11-29 02:08:00,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.5) internal successors, (105), 15 states have internal predecessors, (105), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:08:00,072 INFO L276 IsEmpty]: Start isEmpty. Operand 25125 states and 40521 transitions. [2023-11-29 02:08:00,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 02:08:00,072 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:00,073 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:08:00,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Forceful destruction successful, exit code 0 [2023-11-29 02:08:00,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111,108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:08:00,273 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:08:00,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:00,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1720182075, now seen corresponding path program 2 times [2023-11-29 02:08:00,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:00,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643484462] [2023-11-29 02:08:00,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:00,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:00,280 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:08:00,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [650179814] [2023-11-29 02:08:00,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:08:00,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:08:00,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:08:00,281 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:08:00,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2023-11-29 02:08:00,350 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:08:00,351 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:08:00,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 02:08:00,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:08:02,803 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 02:08:02,804 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:08:02,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:02,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643484462] [2023-11-29 02:08:02,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:08:02,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650179814] [2023-11-29 02:08:02,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650179814] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:08:02,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:08:02,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 02:08:02,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187883989] [2023-11-29 02:08:02,984 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:08:02,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:08:02,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:02,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:08:02,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:08:02,985 INFO L87 Difference]: Start difference. First operand 25125 states and 40521 transitions. Second operand has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 14 states have internal predecessors, (106), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:08:09,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:09,856 INFO L93 Difference]: Finished difference Result 25232 states and 40601 transitions. [2023-11-29 02:08:09,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:08:09,857 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 14 states have internal predecessors, (106), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 135 [2023-11-29 02:08:09,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:09,894 INFO L225 Difference]: With dead ends: 25232 [2023-11-29 02:08:09,894 INFO L226 Difference]: Without dead ends: 25231 [2023-11-29 02:08:09,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:08:09,898 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 413 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 2038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:09,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 1953 Invalid, 2038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 02:08:09,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25231 states. [2023-11-29 02:08:15,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25231 to 25125. [2023-11-29 02:08:15,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25125 states, 22755 states have (on average 1.5774994506701823) internal successors, (35896), 22802 states have internal predecessors, (35896), 2312 states have call successors, (2312), 10 states have call predecessors, (2312), 10 states have return successors, (2312), 2312 states have call predecessors, (2312), 2312 states have call successors, (2312) [2023-11-29 02:08:15,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25125 states to 25125 states and 40520 transitions. [2023-11-29 02:08:15,172 INFO L78 Accepts]: Start accepts. Automaton has 25125 states and 40520 transitions. Word has length 135 [2023-11-29 02:08:15,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:15,172 INFO L495 AbstractCegarLoop]: Abstraction has 25125 states and 40520 transitions. [2023-11-29 02:08:15,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 14 states have internal predecessors, (106), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 02:08:15,172 INFO L276 IsEmpty]: Start isEmpty. Operand 25125 states and 40520 transitions. [2023-11-29 02:08:15,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-29 02:08:15,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:15,173 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:08:15,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Ended with exit code 0 [2023-11-29 02:08:15,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112,109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:08:15,373 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:08:15,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:15,373 INFO L85 PathProgramCache]: Analyzing trace with hash 342317113, now seen corresponding path program 1 times [2023-11-29 02:08:15,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:15,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253814931] [2023-11-29 02:08:15,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:15,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:15,379 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:08:15,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1033602431] [2023-11-29 02:08:15,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:15,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:08:15,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:08:15,380 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:08:15,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2023-11-29 02:08:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:15,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:08:15,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:08:15,525 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 15 proven. 32 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:08:15,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:08:15,637 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 15 proven. 32 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:08:15,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:15,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253814931] [2023-11-29 02:08:15,637 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:08:15,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033602431] [2023-11-29 02:08:15,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033602431] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:08:15,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:08:15,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 02:08:15,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962095644] [2023-11-29 02:08:15,638 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:08:15,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:08:15,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:15,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:08:15,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:08:15,639 INFO L87 Difference]: Start difference. First operand 25125 states and 40520 transitions. Second operand has 10 states, 9 states have (on average 19.0) internal successors, (171), 10 states have internal predecessors, (171), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 02:08:24,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:24,899 INFO L93 Difference]: Finished difference Result 40003 states and 64391 transitions. [2023-11-29 02:08:24,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-29 02:08:24,900 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 19.0) internal successors, (171), 10 states have internal predecessors, (171), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 138 [2023-11-29 02:08:24,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:24,955 INFO L225 Difference]: With dead ends: 40003 [2023-11-29 02:08:24,955 INFO L226 Difference]: Without dead ends: 40002 [2023-11-29 02:08:24,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=517, Invalid=1553, Unknown=0, NotChecked=0, Total=2070 [2023-11-29 02:08:24,961 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 1220 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1224 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:24,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1224 Valid, 1720 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 02:08:24,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40002 states. [2023-11-29 02:08:32,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40002 to 37139. [2023-11-29 02:08:32,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37139 states, 33511 states have (on average 1.5867327146310166) internal successors, (53173), 33558 states have internal predecessors, (53173), 3570 states have call successors, (3570), 10 states have call predecessors, (3570), 10 states have return successors, (3570), 3570 states have call predecessors, (3570), 3570 states have call successors, (3570) [2023-11-29 02:08:33,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37139 states to 37139 states and 60313 transitions. [2023-11-29 02:08:33,068 INFO L78 Accepts]: Start accepts. Automaton has 37139 states and 60313 transitions. Word has length 138 [2023-11-29 02:08:33,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:33,068 INFO L495 AbstractCegarLoop]: Abstraction has 37139 states and 60313 transitions. [2023-11-29 02:08:33,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 19.0) internal successors, (171), 10 states have internal predecessors, (171), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 02:08:33,068 INFO L276 IsEmpty]: Start isEmpty. Operand 37139 states and 60313 transitions. [2023-11-29 02:08:33,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 02:08:33,069 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:33,069 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:08:33,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Ended with exit code 0 [2023-11-29 02:08:33,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2023-11-29 02:08:33,270 INFO L420 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:08:33,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:33,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1476219022, now seen corresponding path program 1 times [2023-11-29 02:08:33,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:33,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626322736] [2023-11-29 02:08:33,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:33,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:33,277 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:08:33,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [586764104] [2023-11-29 02:08:33,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:33,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:08:33,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:08:33,278 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:08:33,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2023-11-29 02:08:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:33,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 02:08:33,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:08:33,518 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 113 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 02:08:33,518 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:08:33,750 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:08:33,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:33,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626322736] [2023-11-29 02:08:33,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:08:33,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586764104] [2023-11-29 02:08:33,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586764104] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:08:33,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:08:33,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 29 [2023-11-29 02:08:33,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138639734] [2023-11-29 02:08:33,751 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:08:33,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 02:08:33,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:33,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 02:08:33,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=695, Unknown=0, NotChecked=0, Total=870 [2023-11-29 02:08:33,752 INFO L87 Difference]: Start difference. First operand 37139 states and 60313 transitions. Second operand has 30 states, 29 states have (on average 6.862068965517241) internal successors, (199), 30 states have internal predecessors, (199), 6 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 02:08:42,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:08:42,142 INFO L93 Difference]: Finished difference Result 53216 states and 86691 transitions. [2023-11-29 02:08:42,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-29 02:08:42,142 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 6.862068965517241) internal successors, (199), 30 states have internal predecessors, (199), 6 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 142 [2023-11-29 02:08:42,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:08:42,205 INFO L225 Difference]: With dead ends: 53216 [2023-11-29 02:08:42,205 INFO L226 Difference]: Without dead ends: 38072 [2023-11-29 02:08:42,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=704, Invalid=2836, Unknown=0, NotChecked=0, Total=3540 [2023-11-29 02:08:42,226 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 293 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 1868 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:08:42,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 1868 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:08:42,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38072 states. [2023-11-29 02:08:50,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38072 to 37755. [2023-11-29 02:08:50,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37755 states, 34062 states have (on average 1.5820268921378662) internal successors, (53887), 34109 states have internal predecessors, (53887), 3626 states have call successors, (3626), 19 states have call predecessors, (3626), 19 states have return successors, (3626), 3626 states have call predecessors, (3626), 3626 states have call successors, (3626) [2023-11-29 02:08:50,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37755 states to 37755 states and 61139 transitions. [2023-11-29 02:08:50,624 INFO L78 Accepts]: Start accepts. Automaton has 37755 states and 61139 transitions. Word has length 142 [2023-11-29 02:08:50,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:08:50,625 INFO L495 AbstractCegarLoop]: Abstraction has 37755 states and 61139 transitions. [2023-11-29 02:08:50,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 6.862068965517241) internal successors, (199), 30 states have internal predecessors, (199), 6 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 02:08:50,625 INFO L276 IsEmpty]: Start isEmpty. Operand 37755 states and 61139 transitions. [2023-11-29 02:08:50,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 02:08:50,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:08:50,626 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:08:50,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Ended with exit code 0 [2023-11-29 02:08:50,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2023-11-29 02:08:50,826 INFO L420 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:08:50,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:08:50,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1212800364, now seen corresponding path program 1 times [2023-11-29 02:08:50,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:08:50,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425246668] [2023-11-29 02:08:50,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:50,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:08:50,835 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:08:50,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1410115126] [2023-11-29 02:08:50,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:08:50,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:08:50,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:08:50,836 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:08:50,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2023-11-29 02:08:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:08:50,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:08:50,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:08:52,289 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:08:52,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:08:55,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:08:55,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425246668] [2023-11-29 02:08:55,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:08:55,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410115126] [2023-11-29 02:08:55,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410115126] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:08:55,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:08:55,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 02:08:55,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275378211] [2023-11-29 02:08:55,324 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:08:55,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:08:55,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:08:55,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:08:55,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:08:55,325 INFO L87 Difference]: Start difference. First operand 37755 states and 61139 transitions. Second operand has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 14 states have internal predecessors, (101), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:09:05,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:09:05,576 INFO L93 Difference]: Finished difference Result 38741 states and 62456 transitions. [2023-11-29 02:09:05,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 02:09:05,576 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 14 states have internal predecessors, (101), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 145 [2023-11-29 02:09:05,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:09:05,631 INFO L225 Difference]: With dead ends: 38741 [2023-11-29 02:09:05,631 INFO L226 Difference]: Without dead ends: 38740 [2023-11-29 02:09:05,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=151, Invalid=841, Unknown=0, NotChecked=0, Total=992 [2023-11-29 02:09:05,636 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 448 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 1712 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:09:05,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1528 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1712 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 02:09:05,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38740 states. [2023-11-29 02:09:13,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38740 to 37761. [2023-11-29 02:09:13,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37761 states, 34068 states have (on average 1.5819243865210755) internal successors, (53893), 34115 states have internal predecessors, (53893), 3626 states have call successors, (3626), 19 states have call predecessors, (3626), 19 states have return successors, (3626), 3626 states have call predecessors, (3626), 3626 states have call successors, (3626) [2023-11-29 02:09:13,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37761 states to 37761 states and 61145 transitions. [2023-11-29 02:09:13,930 INFO L78 Accepts]: Start accepts. Automaton has 37761 states and 61145 transitions. Word has length 145 [2023-11-29 02:09:13,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:09:13,931 INFO L495 AbstractCegarLoop]: Abstraction has 37761 states and 61145 transitions. [2023-11-29 02:09:13,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.769230769230769) internal successors, (101), 14 states have internal predecessors, (101), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:09:13,931 INFO L276 IsEmpty]: Start isEmpty. Operand 37761 states and 61145 transitions. [2023-11-29 02:09:13,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 02:09:13,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:09:13,932 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:09:13,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Ended with exit code 0 [2023-11-29 02:09:14,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable115 [2023-11-29 02:09:14,132 INFO L420 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:09:14,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:09:14,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1057894572, now seen corresponding path program 1 times [2023-11-29 02:09:14,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:09:14,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453020887] [2023-11-29 02:09:14,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:09:14,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:09:14,139 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:09:14,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2003766004] [2023-11-29 02:09:14,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:09:14,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:09:14,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:09:14,140 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:09:14,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2023-11-29 02:09:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:09:14,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:09:14,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:09:14,780 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 34 proven. 5 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:09:14,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:09:14,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:09:14,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453020887] [2023-11-29 02:09:14,967 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:09:14,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003766004] [2023-11-29 02:09:14,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003766004] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:09:14,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:09:14,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:09:14,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347290285] [2023-11-29 02:09:14,967 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:09:14,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:09:14,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:09:14,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:09:14,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:09:14,968 INFO L87 Difference]: Start difference. First operand 37761 states and 61145 transitions. Second operand has 9 states, 8 states have (on average 12.75) internal successors, (102), 9 states have internal predecessors, (102), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:09:24,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:09:24,185 INFO L93 Difference]: Finished difference Result 37960 states and 61305 transitions. [2023-11-29 02:09:24,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:09:24,185 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.75) internal successors, (102), 9 states have internal predecessors, (102), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 146 [2023-11-29 02:09:24,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:09:24,238 INFO L225 Difference]: With dead ends: 37960 [2023-11-29 02:09:24,238 INFO L226 Difference]: Without dead ends: 37958 [2023-11-29 02:09:24,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:09:24,245 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 331 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:09:24,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 839 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 02:09:24,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37958 states. [2023-11-29 02:09:32,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37958 to 37768. [2023-11-29 02:09:32,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37768 states, 34075 states have (on average 1.580542920029347) internal successors, (53857), 34122 states have internal predecessors, (53857), 3626 states have call successors, (3626), 19 states have call predecessors, (3626), 19 states have return successors, (3626), 3626 states have call predecessors, (3626), 3626 states have call successors, (3626) [2023-11-29 02:09:32,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37768 states to 37768 states and 61109 transitions. [2023-11-29 02:09:32,524 INFO L78 Accepts]: Start accepts. Automaton has 37768 states and 61109 transitions. Word has length 146 [2023-11-29 02:09:32,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:09:32,524 INFO L495 AbstractCegarLoop]: Abstraction has 37768 states and 61109 transitions. [2023-11-29 02:09:32,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.75) internal successors, (102), 9 states have internal predecessors, (102), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:09:32,525 INFO L276 IsEmpty]: Start isEmpty. Operand 37768 states and 61109 transitions. [2023-11-29 02:09:32,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-29 02:09:32,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:09:32,525 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:09:32,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Ended with exit code 0 [2023-11-29 02:09:32,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116,113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:09:32,726 INFO L420 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:09:32,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:09:32,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1565006442, now seen corresponding path program 1 times [2023-11-29 02:09:32,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:09:32,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899769159] [2023-11-29 02:09:32,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:09:32,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:09:32,732 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:09:32,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1447437035] [2023-11-29 02:09:32,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:09:32,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:09:32,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:09:32,734 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:09:32,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2023-11-29 02:09:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:09:32,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:09:32,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:09:33,358 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 34 proven. 5 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:09:33,358 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:09:34,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:09:34,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899769159] [2023-11-29 02:09:34,062 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:09:34,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447437035] [2023-11-29 02:09:34,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447437035] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:09:34,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:09:34,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 02:09:34,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376889429] [2023-11-29 02:09:34,063 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:09:34,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:09:34,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:09:34,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:09:34,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:09:34,064 INFO L87 Difference]: Start difference. First operand 37768 states and 61109 transitions. Second operand has 9 states, 8 states have (on average 12.875) internal successors, (103), 9 states have internal predecessors, (103), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:09:44,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:09:44,651 INFO L93 Difference]: Finished difference Result 37958 states and 61260 transitions. [2023-11-29 02:09:44,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:09:44,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 9 states have internal predecessors, (103), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 147 [2023-11-29 02:09:44,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:09:44,719 INFO L225 Difference]: With dead ends: 37958 [2023-11-29 02:09:44,719 INFO L226 Difference]: Without dead ends: 37956 [2023-11-29 02:09:44,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:09:44,726 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 290 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 02:09:44,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 1055 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 02:09:44,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37956 states. [2023-11-29 02:09:53,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37956 to 37769. [2023-11-29 02:09:53,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37769 states, 34076 states have (on average 1.5802911139805143) internal successors, (53850), 34123 states have internal predecessors, (53850), 3626 states have call successors, (3626), 19 states have call predecessors, (3626), 19 states have return successors, (3626), 3626 states have call predecessors, (3626), 3626 states have call successors, (3626) [2023-11-29 02:09:53,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37769 states to 37769 states and 61102 transitions. [2023-11-29 02:09:53,465 INFO L78 Accepts]: Start accepts. Automaton has 37769 states and 61102 transitions. Word has length 147 [2023-11-29 02:09:53,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:09:53,465 INFO L495 AbstractCegarLoop]: Abstraction has 37769 states and 61102 transitions. [2023-11-29 02:09:53,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 9 states have internal predecessors, (103), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:09:53,465 INFO L276 IsEmpty]: Start isEmpty. Operand 37769 states and 61102 transitions. [2023-11-29 02:09:53,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-29 02:09:53,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:09:53,466 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:09:53,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Forceful destruction successful, exit code 0 [2023-11-29 02:09:53,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable117 [2023-11-29 02:09:53,666 INFO L420 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:09:53,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:09:53,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1270559250, now seen corresponding path program 1 times [2023-11-29 02:09:53,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:09:53,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647006549] [2023-11-29 02:09:53,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:09:53,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:09:53,674 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:09:53,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [443093385] [2023-11-29 02:09:53,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:09:53,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:09:53,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:09:53,675 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:09:53,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Waiting until timeout for monitored process [2023-11-29 02:09:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:09:53,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:09:53,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:09:54,547 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 33 proven. 27 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-11-29 02:09:54,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:09:55,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:09:55,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647006549] [2023-11-29 02:09:55,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:09:55,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443093385] [2023-11-29 02:09:55,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443093385] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:09:55,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:09:55,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 02:09:55,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712452918] [2023-11-29 02:09:55,230 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:09:55,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:09:55,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:09:55,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:09:55,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:09:55,231 INFO L87 Difference]: Start difference. First operand 37769 states and 61102 transitions. Second operand has 12 states, 11 states have (on average 9.727272727272727) internal successors, (107), 12 states have internal predecessors, (107), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 02:10:09,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:10:09,599 INFO L93 Difference]: Finished difference Result 38906 states and 62600 transitions. [2023-11-29 02:10:09,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 02:10:09,600 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.727272727272727) internal successors, (107), 12 states have internal predecessors, (107), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 148 [2023-11-29 02:10:09,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:10:09,674 INFO L225 Difference]: With dead ends: 38906 [2023-11-29 02:10:09,674 INFO L226 Difference]: Without dead ends: 38905 [2023-11-29 02:10:09,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=107, Invalid=493, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:10:09,681 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 240 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:10:09,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 1578 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1844 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-29 02:10:09,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38905 states. [2023-11-29 02:10:19,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38905 to 37829. [2023-11-29 02:10:19,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37829 states, 34132 states have (on average 1.5798664010312904) internal successors, (53924), 34179 states have internal predecessors, (53924), 3630 states have call successors, (3630), 19 states have call predecessors, (3630), 19 states have return successors, (3630), 3630 states have call predecessors, (3630), 3630 states have call successors, (3630) [2023-11-29 02:10:19,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37829 states to 37829 states and 61184 transitions. [2023-11-29 02:10:19,686 INFO L78 Accepts]: Start accepts. Automaton has 37829 states and 61184 transitions. Word has length 148 [2023-11-29 02:10:19,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:10:19,686 INFO L495 AbstractCegarLoop]: Abstraction has 37829 states and 61184 transitions. [2023-11-29 02:10:19,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.727272727272727) internal successors, (107), 12 states have internal predecessors, (107), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 02:10:19,686 INFO L276 IsEmpty]: Start isEmpty. Operand 37829 states and 61184 transitions. [2023-11-29 02:10:19,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 02:10:19,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:10:19,687 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:10:19,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Ended with exit code 0 [2023-11-29 02:10:19,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 115 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable118 [2023-11-29 02:10:19,888 INFO L420 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:10:19,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:10:19,888 INFO L85 PathProgramCache]: Analyzing trace with hash -732630888, now seen corresponding path program 1 times [2023-11-29 02:10:19,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:10:19,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657255480] [2023-11-29 02:10:19,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:10:19,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:10:19,896 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:10:19,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1037280873] [2023-11-29 02:10:19,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:10:19,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:10:19,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:10:19,897 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:10:19,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process [2023-11-29 02:10:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:10:19,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-29 02:10:19,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:10:21,481 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 12 proven. 63 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 02:10:21,481 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:10:22,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:10:22,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657255480] [2023-11-29 02:10:22,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:10:22,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037280873] [2023-11-29 02:10:22,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037280873] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:10:22,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:10:22,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 02:10:22,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244294671] [2023-11-29 02:10:22,409 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:10:22,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 02:10:22,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:10:22,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 02:10:22,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:10:22,411 INFO L87 Difference]: Start difference. First operand 37829 states and 61184 transitions. Second operand has 15 states, 14 states have (on average 7.714285714285714) internal successors, (108), 15 states have internal predecessors, (108), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 02:10:34,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:10:34,483 INFO L93 Difference]: Finished difference Result 38737 states and 62401 transitions. [2023-11-29 02:10:34,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 02:10:34,484 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.714285714285714) internal successors, (108), 15 states have internal predecessors, (108), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 149 [2023-11-29 02:10:34,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:10:34,555 INFO L225 Difference]: With dead ends: 38737 [2023-11-29 02:10:34,555 INFO L226 Difference]: Without dead ends: 38736 [2023-11-29 02:10:34,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=633, Unknown=0, NotChecked=0, Total=756 [2023-11-29 02:10:34,563 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 369 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 2183 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 2207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:10:34,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 1381 Invalid, 2207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2183 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 02:10:34,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38736 states. [2023-11-29 02:10:44,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38736 to 37833. [2023-11-29 02:10:44,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37833 states, 34136 states have (on average 1.5797984532458402) internal successors, (53928), 34183 states have internal predecessors, (53928), 3630 states have call successors, (3630), 19 states have call predecessors, (3630), 19 states have return successors, (3630), 3630 states have call predecessors, (3630), 3630 states have call successors, (3630) [2023-11-29 02:10:44,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37833 states to 37833 states and 61188 transitions. [2023-11-29 02:10:44,635 INFO L78 Accepts]: Start accepts. Automaton has 37833 states and 61188 transitions. Word has length 149 [2023-11-29 02:10:44,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:10:44,635 INFO L495 AbstractCegarLoop]: Abstraction has 37833 states and 61188 transitions. [2023-11-29 02:10:44,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.714285714285714) internal successors, (108), 15 states have internal predecessors, (108), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 02:10:44,636 INFO L276 IsEmpty]: Start isEmpty. Operand 37833 states and 61188 transitions. [2023-11-29 02:10:44,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 02:10:44,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:10:44,637 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:10:44,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Ended with exit code 0 [2023-11-29 02:10:44,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119,116 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:10:44,837 INFO L420 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:10:44,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:10:44,837 INFO L85 PathProgramCache]: Analyzing trace with hash 357932809, now seen corresponding path program 1 times [2023-11-29 02:10:44,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:10:44,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368729340] [2023-11-29 02:10:44,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:10:44,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:10:44,847 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:10:44,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1402765435] [2023-11-29 02:10:44,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:10:44,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:10:44,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:10:44,848 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:10:44,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2023-11-29 02:10:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:10:44,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:10:44,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:10:45,185 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 2 proven. 121 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 02:10:45,185 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:10:45,521 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 2 proven. 57 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:10:45,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:10:45,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368729340] [2023-11-29 02:10:45,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:10:45,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402765435] [2023-11-29 02:10:45,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402765435] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:10:45,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:10:45,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 34 [2023-11-29 02:10:45,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913037407] [2023-11-29 02:10:45,522 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:10:45,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 02:10:45,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:10:45,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 02:10:45,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=901, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 02:10:45,524 INFO L87 Difference]: Start difference. First operand 37833 states and 61188 transitions. Second operand has 34 states, 34 states have (on average 6.264705882352941) internal successors, (213), 34 states have internal predecessors, (213), 6 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 02:10:55,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:10:55,995 INFO L93 Difference]: Finished difference Result 74799 states and 121246 transitions. [2023-11-29 02:10:55,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-11-29 02:10:55,996 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 6.264705882352941) internal successors, (213), 34 states have internal predecessors, (213), 6 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 150 [2023-11-29 02:10:55,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:10:56,071 INFO L225 Difference]: With dead ends: 74799 [2023-11-29 02:10:56,071 INFO L226 Difference]: Without dead ends: 38480 [2023-11-29 02:10:56,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1263 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=999, Invalid=4257, Unknown=0, NotChecked=0, Total=5256 [2023-11-29 02:10:56,100 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 553 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 2032 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:10:56,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 2032 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:10:56,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38480 states. [2023-11-29 02:11:05,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38480 to 38207. [2023-11-29 02:11:06,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38207 states, 34482 states have (on average 1.57342961545154) internal successors, (54255), 34529 states have internal predecessors, (54255), 3650 states have call successors, (3650), 27 states have call predecessors, (3650), 27 states have return successors, (3650), 3650 states have call predecessors, (3650), 3650 states have call successors, (3650) [2023-11-29 02:11:06,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38207 states to 38207 states and 61555 transitions. [2023-11-29 02:11:06,100 INFO L78 Accepts]: Start accepts. Automaton has 38207 states and 61555 transitions. Word has length 150 [2023-11-29 02:11:06,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:11:06,100 INFO L495 AbstractCegarLoop]: Abstraction has 38207 states and 61555 transitions. [2023-11-29 02:11:06,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 6.264705882352941) internal successors, (213), 34 states have internal predecessors, (213), 6 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-11-29 02:11:06,100 INFO L276 IsEmpty]: Start isEmpty. Operand 38207 states and 61555 transitions. [2023-11-29 02:11:06,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 02:11:06,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:11:06,101 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:11:06,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Ended with exit code 0 [2023-11-29 02:11:06,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 117 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable120 [2023-11-29 02:11:06,302 INFO L420 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2023-11-29 02:11:06,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:11:06,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1236720848, now seen corresponding path program 1 times [2023-11-29 02:11:06,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:11:06,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325844678] [2023-11-29 02:11:06,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:06,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:11:06,312 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:11:06,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1982269126] [2023-11-29 02:11:06,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:11:06,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:11:06,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:11:06,313 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:11:06,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1743a7f2-2d82-4c6d-8ebf-f67fd9892b2d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Waiting until timeout for monitored process [2023-11-29 02:11:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:11:06,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 02:11:06,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:11:07,899 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 02:11:07,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:11:08,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:11:08,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325844678] [2023-11-29 02:11:08,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:11:08,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982269126] [2023-11-29 02:11:08,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982269126] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:11:08,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:11:08,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 02:11:08,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943585121] [2023-11-29 02:11:08,911 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:11:08,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:11:08,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:11:08,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:11:08,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2023-11-29 02:11:08,912 INFO L87 Difference]: Start difference. First operand 38207 states and 61555 transitions. Second operand has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 14 states have internal predecessors, (106), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 02:11:20,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:11:20,849 INFO L93 Difference]: Finished difference Result 38973 states and 62579 transitions. [2023-11-29 02:11:20,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 02:11:20,849 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.153846153846153) internal successors, (106), 14 states have internal predecessors, (106), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 150 [2023-11-29 02:11:20,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:11:20,916 INFO L225 Difference]: With dead ends: 38973 [2023-11-29 02:11:20,917 INFO L226 Difference]: Without dead ends: 38971 [2023-11-29 02:11:20,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:11:20,923 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 353 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:11:20,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 1205 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 02:11:20,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38971 states.