./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound5.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_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/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_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/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_6fa53699-4982-4a50-ac26-d39e6109e332/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 ab50d4c44616d850baf388e04d7eb1063c3cea27d21c9cbb628b158ef2bdff42 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:22:49,332 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:22:49,404 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 04:22:49,409 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:22:49,409 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:22:49,437 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:22:49,437 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:22:49,438 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:22:49,439 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:22:49,440 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:22:49,440 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:22:49,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:22:49,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:22:49,442 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:22:49,443 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:22:49,443 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:22:49,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:22:49,445 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:22:49,445 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:22:49,445 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:22:49,446 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:22:49,447 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:22:49,447 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:22:49,448 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:22:49,448 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 04:22:49,448 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:22:49,449 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:22:49,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:22:49,450 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:22:49,450 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:22:49,451 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:22:49,451 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:22:49,452 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:22:49,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:22:49,452 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:22:49,452 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:22:49,453 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:22:49,453 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:22:49,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:22:49,453 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:22:49,454 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:22:49,454 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:22:49,454 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:22:49,455 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:22:49,455 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_6fa53699-4982-4a50-ac26-d39e6109e332/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab50d4c44616d850baf388e04d7eb1063c3cea27d21c9cbb628b158ef2bdff42 [2023-11-29 04:22:49,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:22:49,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:22:49,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:22:49,707 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:22:49,707 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:22:49,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound5.c [2023-11-29 04:22:52,641 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:22:52,844 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:22:52,845 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound5.c [2023-11-29 04:22:52,854 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/data/f55b60738/9c2b65c06e6a4bb889a75cbdc889946c/FLAG89d4259b3 [2023-11-29 04:22:52,871 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/data/f55b60738/9c2b65c06e6a4bb889a75cbdc889946c [2023-11-29 04:22:52,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:22:52,875 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:22:52,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:22:52,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:22:52,883 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:22:52,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:22:52" (1/1) ... [2023-11-29 04:22:52,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40db1b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:22:52, skipping insertion in model container [2023-11-29 04:22:52,886 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:22:52" (1/1) ... [2023-11-29 04:22:52,911 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:22:53,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:22:53,132 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:22:53,160 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:22:53,176 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:22:53,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:22:53 WrapperNode [2023-11-29 04:22:53,177 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:22:53,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:22:53,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:22:53,179 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:22:53,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:22:53" (1/1) ... [2023-11-29 04:22:53,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:22:53" (1/1) ... [2023-11-29 04:22:53,225 INFO L138 Inliner]: procedures = 14, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 149 [2023-11-29 04:22:53,226 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:22:53,226 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:22:53,226 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:22:53,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:22:53,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:22:53" (1/1) ... [2023-11-29 04:22:53,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:22:53" (1/1) ... [2023-11-29 04:22:53,239 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:22:53" (1/1) ... [2023-11-29 04:22:53,254 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 04:22:53,255 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:22:53" (1/1) ... [2023-11-29 04:22:53,255 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:22:53" (1/1) ... [2023-11-29 04:22:53,261 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:22:53" (1/1) ... [2023-11-29 04:22:53,265 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:22:53" (1/1) ... [2023-11-29 04:22:53,267 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:22:53" (1/1) ... [2023-11-29 04:22:53,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:22:53" (1/1) ... [2023-11-29 04:22:53,271 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:22:53,273 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:22:53,273 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:22:53,273 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:22:53,274 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:22:53" (1/1) ... [2023-11-29 04:22:53,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:22:53,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:22:53,307 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:22:53,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:22:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:22:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 04:22:53,351 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 04:22:53,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:22:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:22:53,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:22:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 04:22:53,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 04:22:53,424 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:22:53,427 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:22:53,857 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:22:53,885 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:22:53,886 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 04:22:53,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:22:53 BoogieIcfgContainer [2023-11-29 04:22:53,886 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:22:53,889 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:22:53,889 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:22:53,893 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:22:53,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:22:52" (1/3) ... [2023-11-29 04:22:53,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba9c400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:22:53, skipping insertion in model container [2023-11-29 04:22:53,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:22:53" (2/3) ... [2023-11-29 04:22:53,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba9c400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:22:53, skipping insertion in model container [2023-11-29 04:22:53,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:22:53" (3/3) ... [2023-11-29 04:22:53,897 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd2-ll_valuebound5.c [2023-11-29 04:22:53,937 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:22:53,938 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2023-11-29 04:22:53,994 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:22:54,000 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;@20a6b745, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:22:54,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2023-11-29 04:22:54,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 79 states have (on average 1.9113924050632911) internal successors, (151), 144 states have internal predecessors, (151), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 04:22:54,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 04:22:54,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:22:54,011 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:22:54,012 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:22:54,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:22:54,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1634057786, now seen corresponding path program 1 times [2023-11-29 04:22:54,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:22:54,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257650931] [2023-11-29 04:22:54,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:54,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:22:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:22:54,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:22:54,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257650931] [2023-11-29 04:22:54,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 04:22:54,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908658566] [2023-11-29 04:22:54,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:54,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:22:54,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:22:54,170 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:22:54,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:22:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:22:54,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 04:22:54,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:22:54,268 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 04:22:54,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:22:54,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908658566] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:22:54,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:22:54,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:22:54,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047082101] [2023-11-29 04:22:54,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:22:54,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:22:54,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:22:54,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:22:54,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:22:54,310 INFO L87 Difference]: Start difference. First operand has 158 states, 79 states have (on average 1.9113924050632911) internal successors, (151), 144 states have internal predecessors, (151), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:22:54,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:22:54,353 INFO L93 Difference]: Finished difference Result 313 states and 359 transitions. [2023-11-29 04:22:54,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:22:54,356 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2023-11-29 04:22:54,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:22:54,366 INFO L225 Difference]: With dead ends: 313 [2023-11-29 04:22:54,366 INFO L226 Difference]: Without dead ends: 154 [2023-11-29 04:22:54,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 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 04:22:54,375 INFO L413 NwaCegarLoop]: 166 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, 166 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 04:22:54,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 166 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:22:54,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-11-29 04:22:54,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2023-11-29 04:22:54,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 78 states have (on average 1.8205128205128205) internal successors, (142), 141 states have internal predecessors, (142), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 04:22:54,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 164 transitions. [2023-11-29 04:22:54,430 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 164 transitions. Word has length 24 [2023-11-29 04:22:54,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:22:54,431 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 164 transitions. [2023-11-29 04:22:54,431 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:22:54,431 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 164 transitions. [2023-11-29 04:22:54,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 04:22:54,433 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:22:54,433 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:22:54,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:22:54,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 04:22:54,638 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:22:54,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:22:54,639 INFO L85 PathProgramCache]: Analyzing trace with hash 385715966, now seen corresponding path program 1 times [2023-11-29 04:22:54,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:22:54,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852356491] [2023-11-29 04:22:54,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:54,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:22:54,657 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:22:54,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [578151926] [2023-11-29 04:22:54,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:54,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:22:54,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:22:54,659 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:22:54,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:22:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:22:54,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:22:54,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:22:54,860 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:22:54,860 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:22:54,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:22:54,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852356491] [2023-11-29 04:22:54,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:22:54,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578151926] [2023-11-29 04:22:54,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578151926] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:22:54,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:22:54,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 04:22:54,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361051798] [2023-11-29 04:22:54,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:22:54,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:22:54,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:22:54,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:22:54,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:22:54,865 INFO L87 Difference]: Start difference. First operand 154 states and 164 transitions. Second operand has 7 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 04:22:55,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:22:55,169 INFO L93 Difference]: Finished difference Result 154 states and 164 transitions. [2023-11-29 04:22:55,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:22:55,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 24 [2023-11-29 04:22:55,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:22:55,172 INFO L225 Difference]: With dead ends: 154 [2023-11-29 04:22:55,172 INFO L226 Difference]: Without dead ends: 152 [2023-11-29 04:22:55,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:22:55,175 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 133 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:22:55,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 251 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:22:55,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-29 04:22:55,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2023-11-29 04:22:55,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 78 states have (on average 1.794871794871795) internal successors, (140), 139 states have internal predecessors, (140), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 04:22:55,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 162 transitions. [2023-11-29 04:22:55,193 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 162 transitions. Word has length 24 [2023-11-29 04:22:55,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:22:55,195 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 162 transitions. [2023-11-29 04:22:55,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 04:22:55,196 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 162 transitions. [2023-11-29 04:22:55,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 04:22:55,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:22:55,197 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:22:55,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:22:55,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:22:55,399 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:22:55,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:22:55,399 INFO L85 PathProgramCache]: Analyzing trace with hash -927706900, now seen corresponding path program 1 times [2023-11-29 04:22:55,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:22:55,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429851163] [2023-11-29 04:22:55,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:55,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:22:55,416 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:22:55,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [12968716] [2023-11-29 04:22:55,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:55,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:22:55,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:22:55,419 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:22:55,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:22:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:22:55,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:22:55,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:22:55,606 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 04:22:55,606 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:22:55,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:22:55,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429851163] [2023-11-29 04:22:55,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:22:55,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12968716] [2023-11-29 04:22:55,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12968716] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:22:55,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:22:55,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:22:55,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079093523] [2023-11-29 04:22:55,816 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:22:55,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:22:55,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:22:55,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:22:55,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:22:55,818 INFO L87 Difference]: Start difference. First operand 152 states and 162 transitions. Second operand has 7 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 04:22:56,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:22:56,108 INFO L93 Difference]: Finished difference Result 152 states and 162 transitions. [2023-11-29 04:22:56,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:22:56,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2023-11-29 04:22:56,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:22:56,111 INFO L225 Difference]: With dead ends: 152 [2023-11-29 04:22:56,111 INFO L226 Difference]: Without dead ends: 151 [2023-11-29 04:22:56,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:22:56,113 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 260 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:22:56,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 235 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:22:56,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-29 04:22:56,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-11-29 04:22:56,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 78 states have (on average 1.7820512820512822) internal successors, (139), 138 states have internal predecessors, (139), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 04:22:56,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2023-11-29 04:22:56,129 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 25 [2023-11-29 04:22:56,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:22:56,130 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2023-11-29 04:22:56,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 04:22:56,130 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2023-11-29 04:22:56,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 04:22:56,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:22:56,132 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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 04:22:56,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:22:56,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:22:56,333 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:22:56,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:22:56,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1810640804, now seen corresponding path program 1 times [2023-11-29 04:22:56,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:22:56,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089079062] [2023-11-29 04:22:56,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:56,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:22:56,349 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:22:56,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1961839551] [2023-11-29 04:22:56,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:56,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:22:56,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:22:56,351 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:22:56,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:22:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:22:56,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:22:56,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:22:56,443 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 04:22:56,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:22:56,518 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 04:22:56,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:22:56,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089079062] [2023-11-29 04:22:56,518 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:22:56,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961839551] [2023-11-29 04:22:56,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961839551] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:22:56,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:22:56,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2023-11-29 04:22:56,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406336945] [2023-11-29 04:22:56,519 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:22:56,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:22:56,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:22:56,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:22:56,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:22:56,521 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:22:56,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:22:56,817 INFO L93 Difference]: Finished difference Result 268 states and 284 transitions. [2023-11-29 04:22:56,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:22:56,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2023-11-29 04:22:56,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:22:56,820 INFO L225 Difference]: With dead ends: 268 [2023-11-29 04:22:56,820 INFO L226 Difference]: Without dead ends: 238 [2023-11-29 04:22:56,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:22:56,822 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 301 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:22:56,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 250 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:22:56,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-11-29 04:22:56,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 199. [2023-11-29 04:22:56,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 122 states have (on average 1.8278688524590163) internal successors, (223), 181 states have internal predecessors, (223), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 04:22:56,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 253 transitions. [2023-11-29 04:22:56,846 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 253 transitions. Word has length 40 [2023-11-29 04:22:56,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:22:56,846 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 253 transitions. [2023-11-29 04:22:56,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:22:56,847 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 253 transitions. [2023-11-29 04:22:56,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 04:22:56,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:22:56,849 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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 04:22:56,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 04:22:57,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:22:57,050 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:22:57,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:22:57,051 INFO L85 PathProgramCache]: Analyzing trace with hash 295288537, now seen corresponding path program 1 times [2023-11-29 04:22:57,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:22:57,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096302474] [2023-11-29 04:22:57,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:57,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:22:57,068 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:22:57,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [295896328] [2023-11-29 04:22:57,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:57,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:22:57,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:22:57,069 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:22:57,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:22:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:22:57,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:22:57,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:22:57,193 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 04:22:57,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:22:57,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:22:57,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096302474] [2023-11-29 04:22:57,262 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:22:57,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295896328] [2023-11-29 04:22:57,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295896328] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:22:57,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:22:57,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:22:57,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59664513] [2023-11-29 04:22:57,263 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:22:57,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:22:57,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:22:57,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:22:57,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:22:57,265 INFO L87 Difference]: Start difference. First operand 199 states and 253 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:22:57,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:22:57,889 INFO L93 Difference]: Finished difference Result 239 states and 254 transitions. [2023-11-29 04:22:57,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:22:57,889 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 41 [2023-11-29 04:22:57,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:22:57,892 INFO L225 Difference]: With dead ends: 239 [2023-11-29 04:22:57,892 INFO L226 Difference]: Without dead ends: 237 [2023-11-29 04:22:57,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:22:57,894 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 299 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:22:57,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 377 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:22:57,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-11-29 04:22:57,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 199. [2023-11-29 04:22:57,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 122 states have (on average 1.8114754098360655) internal successors, (221), 181 states have internal predecessors, (221), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 04:22:57,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 251 transitions. [2023-11-29 04:22:57,912 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 251 transitions. Word has length 41 [2023-11-29 04:22:57,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:22:57,913 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 251 transitions. [2023-11-29 04:22:57,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:22:57,913 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 251 transitions. [2023-11-29 04:22:57,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 04:22:57,915 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:22:57,915 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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 04:22:57,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 04:22:58,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:22:58,118 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:22:58,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:22:58,119 INFO L85 PathProgramCache]: Analyzing trace with hash 564010130, now seen corresponding path program 1 times [2023-11-29 04:22:58,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:22:58,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137343071] [2023-11-29 04:22:58,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:58,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:22:58,138 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:22:58,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [441411693] [2023-11-29 04:22:58,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:58,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:22:58,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:22:58,140 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:22:58,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 04:22:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:22:58,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:22:58,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:22:58,290 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 04:22:58,290 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:22:58,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:22:58,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137343071] [2023-11-29 04:22:58,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:22:58,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441411693] [2023-11-29 04:22:58,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441411693] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:22:58,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:22:58,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:22:58,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974728415] [2023-11-29 04:22:58,452 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:22:58,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:22:58,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:22:58,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:22:58,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:22:58,454 INFO L87 Difference]: Start difference. First operand 199 states and 251 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:22:59,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:22:59,842 INFO L93 Difference]: Finished difference Result 320 states and 341 transitions. [2023-11-29 04:22:59,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:22:59,842 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2023-11-29 04:22:59,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:22:59,845 INFO L225 Difference]: With dead ends: 320 [2023-11-29 04:22:59,845 INFO L226 Difference]: Without dead ends: 318 [2023-11-29 04:22:59,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:22:59,846 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 434 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:22:59,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 385 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 04:22:59,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-11-29 04:22:59,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 245. [2023-11-29 04:22:59,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 164 states have (on average 1.8231707317073171) internal successors, (299), 223 states have internal predecessors, (299), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 04:22:59,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 337 transitions. [2023-11-29 04:22:59,861 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 337 transitions. Word has length 42 [2023-11-29 04:22:59,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:22:59,861 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 337 transitions. [2023-11-29 04:22:59,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:22:59,861 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 337 transitions. [2023-11-29 04:22:59,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 04:22:59,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:22:59,863 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 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 04:22:59,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 04:23:00,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 04:23:00,066 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:00,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:00,067 INFO L85 PathProgramCache]: Analyzing trace with hash 304444923, now seen corresponding path program 1 times [2023-11-29 04:23:00,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:00,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146832360] [2023-11-29 04:23:00,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:00,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:00,082 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:00,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1144997053] [2023-11-29 04:23:00,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:00,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:00,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:00,084 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:00,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 04:23:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:00,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:23:00,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:00,230 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 04:23:00,230 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:00,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:00,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146832360] [2023-11-29 04:23:00,368 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:00,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144997053] [2023-11-29 04:23:00,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144997053] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:23:00,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:23:00,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:23:00,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547362741] [2023-11-29 04:23:00,369 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:00,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:23:00,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:00,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:23:00,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:23:00,371 INFO L87 Difference]: Start difference. First operand 245 states and 337 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 04:23:01,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:01,834 INFO L93 Difference]: Finished difference Result 362 states and 383 transitions. [2023-11-29 04:23:01,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:23:01,834 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 43 [2023-11-29 04:23:01,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:01,837 INFO L225 Difference]: With dead ends: 362 [2023-11-29 04:23:01,837 INFO L226 Difference]: Without dead ends: 361 [2023-11-29 04:23:01,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:23:01,839 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 603 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:01,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 497 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:23:01,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-29 04:23:01,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 245. [2023-11-29 04:23:01,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 164 states have (on average 1.8170731707317074) internal successors, (298), 223 states have internal predecessors, (298), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 04:23:01,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 336 transitions. [2023-11-29 04:23:01,855 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 336 transitions. Word has length 43 [2023-11-29 04:23:01,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:01,856 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 336 transitions. [2023-11-29 04:23:01,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 04:23:01,856 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 336 transitions. [2023-11-29 04:23:01,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 04:23:01,857 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:01,857 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 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 04:23:01,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 04:23:02,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 04:23:02,062 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:02,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:02,063 INFO L85 PathProgramCache]: Analyzing trace with hash 847858100, now seen corresponding path program 1 times [2023-11-29 04:23:02,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:02,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266612110] [2023-11-29 04:23:02,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:02,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:02,075 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:02,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [164105608] [2023-11-29 04:23:02,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:02,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:02,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:02,077 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:02,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 04:23:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:02,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:23:02,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:02,270 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:23:02,270 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:02,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:02,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266612110] [2023-11-29 04:23:02,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:02,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164105608] [2023-11-29 04:23:02,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164105608] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:23:02,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:23:02,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:23:02,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488641892] [2023-11-29 04:23:02,362 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:02,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:23:02,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:02,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:23:02,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:23:02,363 INFO L87 Difference]: Start difference. First operand 245 states and 336 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 04:23:03,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:03,659 INFO L93 Difference]: Finished difference Result 318 states and 338 transitions. [2023-11-29 04:23:03,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:23:03,659 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 44 [2023-11-29 04:23:03,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:03,662 INFO L225 Difference]: With dead ends: 318 [2023-11-29 04:23:03,662 INFO L226 Difference]: Without dead ends: 316 [2023-11-29 04:23:03,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:23:03,663 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 666 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:03,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 278 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 04:23:03,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-29 04:23:03,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 245. [2023-11-29 04:23:03,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 164 states have (on average 1.8048780487804879) internal successors, (296), 223 states have internal predecessors, (296), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 04:23:03,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 334 transitions. [2023-11-29 04:23:03,674 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 334 transitions. Word has length 44 [2023-11-29 04:23:03,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:03,674 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 334 transitions. [2023-11-29 04:23:03,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 04:23:03,674 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 334 transitions. [2023-11-29 04:23:03,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-29 04:23:03,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:03,675 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:03,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 04:23:03,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:03,879 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:03,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:03,879 INFO L85 PathProgramCache]: Analyzing trace with hash -251836423, now seen corresponding path program 1 times [2023-11-29 04:23:03,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:03,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048683643] [2023-11-29 04:23:03,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:03,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:03,893 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:03,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [668625649] [2023-11-29 04:23:03,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:03,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:03,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:03,895 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:03,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 04:23:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:03,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:23:03,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:04,080 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:23:04,081 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:04,271 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 04:23:04,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:04,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048683643] [2023-11-29 04:23:04,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:04,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668625649] [2023-11-29 04:23:04,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668625649] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:23:04,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:23:04,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2023-11-29 04:23:04,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137487577] [2023-11-29 04:23:04,273 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:04,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:23:04,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:04,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:23:04,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:23:04,274 INFO L87 Difference]: Start difference. First operand 245 states and 334 transitions. Second operand has 10 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:23:06,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:06,952 INFO L93 Difference]: Finished difference Result 301 states and 356 transitions. [2023-11-29 04:23:06,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:23:06,952 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) Word has length 50 [2023-11-29 04:23:06,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:06,954 INFO L225 Difference]: With dead ends: 301 [2023-11-29 04:23:06,954 INFO L226 Difference]: Without dead ends: 300 [2023-11-29 04:23:06,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:23:06,955 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 464 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:06,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 406 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 04:23:06,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-11-29 04:23:06,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 252. [2023-11-29 04:23:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 170 states have (on average 1.7882352941176471) internal successors, (304), 229 states have internal predecessors, (304), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:23:06,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 344 transitions. [2023-11-29 04:23:06,972 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 344 transitions. Word has length 50 [2023-11-29 04:23:06,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:06,973 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 344 transitions. [2023-11-29 04:23:06,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:23:06,973 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 344 transitions. [2023-11-29 04:23:06,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 04:23:06,974 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:06,974 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:06,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 04:23:07,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:07,178 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:07,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:07,179 INFO L85 PathProgramCache]: Analyzing trace with hash 783005563, now seen corresponding path program 1 times [2023-11-29 04:23:07,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:07,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187753224] [2023-11-29 04:23:07,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:07,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:07,189 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:07,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [774132593] [2023-11-29 04:23:07,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:07,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:07,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:07,191 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:07,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 04:23:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:07,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:23:07,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:07,374 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:23:07,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:07,604 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 04:23:07,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:07,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187753224] [2023-11-29 04:23:07,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:07,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774132593] [2023-11-29 04:23:07,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774132593] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:23:07,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:23:07,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2023-11-29 04:23:07,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618003163] [2023-11-29 04:23:07,605 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:07,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:23:07,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:07,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:23:07,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:23:07,607 INFO L87 Difference]: Start difference. First operand 252 states and 344 transitions. Second operand has 10 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:23:09,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:09,776 INFO L93 Difference]: Finished difference Result 302 states and 355 transitions. [2023-11-29 04:23:09,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:23:09,777 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) Word has length 51 [2023-11-29 04:23:09,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:09,779 INFO L225 Difference]: With dead ends: 302 [2023-11-29 04:23:09,779 INFO L226 Difference]: Without dead ends: 301 [2023-11-29 04:23:09,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:23:09,780 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 577 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:09,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 515 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 04:23:09,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-11-29 04:23:09,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 253. [2023-11-29 04:23:09,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 171 states have (on average 1.7719298245614035) internal successors, (303), 230 states have internal predecessors, (303), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:23:09,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 343 transitions. [2023-11-29 04:23:09,791 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 343 transitions. Word has length 51 [2023-11-29 04:23:09,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:09,791 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 343 transitions. [2023-11-29 04:23:09,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:23:09,791 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 343 transitions. [2023-11-29 04:23:09,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 04:23:09,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:09,792 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:09,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 04:23:09,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 04:23:09,993 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:09,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:09,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1496631237, now seen corresponding path program 1 times [2023-11-29 04:23:09,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:09,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452365688] [2023-11-29 04:23:09,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:09,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:10,005 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:10,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [509905115] [2023-11-29 04:23:10,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:10,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:10,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:10,007 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:10,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 04:23:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:10,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:23:10,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:10,156 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 04:23:10,157 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:10,314 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 04:23:10,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:10,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452365688] [2023-11-29 04:23:10,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:10,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509905115] [2023-11-29 04:23:10,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509905115] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:23:10,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:23:10,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 04:23:10,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065784183] [2023-11-29 04:23:10,316 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:10,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:23:10,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:10,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:23:10,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:23:10,317 INFO L87 Difference]: Start difference. First operand 253 states and 343 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:23:11,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:11,657 INFO L93 Difference]: Finished difference Result 294 states and 346 transitions. [2023-11-29 04:23:11,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:23:11,657 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 52 [2023-11-29 04:23:11,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:11,659 INFO L225 Difference]: With dead ends: 294 [2023-11-29 04:23:11,659 INFO L226 Difference]: Without dead ends: 293 [2023-11-29 04:23:11,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:23:11,660 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 408 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:11,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 453 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 04:23:11,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-29 04:23:11,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 254. [2023-11-29 04:23:11,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 172 states have (on average 1.755813953488372) internal successors, (302), 231 states have internal predecessors, (302), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:23:11,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 342 transitions. [2023-11-29 04:23:11,677 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 342 transitions. Word has length 52 [2023-11-29 04:23:11,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:11,677 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 342 transitions. [2023-11-29 04:23:11,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:23:11,678 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 342 transitions. [2023-11-29 04:23:11,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 04:23:11,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:11,679 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:11,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 04:23:11,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:11,879 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:11,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:11,880 INFO L85 PathProgramCache]: Analyzing trace with hash 849071997, now seen corresponding path program 1 times [2023-11-29 04:23:11,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:11,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787404825] [2023-11-29 04:23:11,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:11,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:11,889 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:11,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [784380120] [2023-11-29 04:23:11,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:11,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:11,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:11,890 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:11,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 04:23:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:11,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:23:11,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:12,084 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 04:23:12,085 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:12,262 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 04:23:12,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:12,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787404825] [2023-11-29 04:23:12,262 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:12,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784380120] [2023-11-29 04:23:12,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784380120] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:23:12,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:23:12,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 04:23:12,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854652615] [2023-11-29 04:23:12,264 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:12,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:23:12,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:12,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:23:12,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:23:12,265 INFO L87 Difference]: Start difference. First operand 254 states and 342 transitions. Second operand has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:23:12,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:12,613 INFO L93 Difference]: Finished difference Result 294 states and 345 transitions. [2023-11-29 04:23:12,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:23:12,613 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 53 [2023-11-29 04:23:12,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:12,616 INFO L225 Difference]: With dead ends: 294 [2023-11-29 04:23:12,616 INFO L226 Difference]: Without dead ends: 293 [2023-11-29 04:23:12,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:23:12,617 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 274 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:12,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 559 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:23:12,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-29 04:23:12,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 255. [2023-11-29 04:23:12,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 173 states have (on average 1.739884393063584) internal successors, (301), 232 states have internal predecessors, (301), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:23:12,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 341 transitions. [2023-11-29 04:23:12,635 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 341 transitions. Word has length 53 [2023-11-29 04:23:12,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:12,635 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 341 transitions. [2023-11-29 04:23:12,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:23:12,636 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 341 transitions. [2023-11-29 04:23:12,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 04:23:12,637 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:12,637 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:12,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 04:23:12,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:12,842 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:12,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:12,843 INFO L85 PathProgramCache]: Analyzing trace with hash 551428221, now seen corresponding path program 1 times [2023-11-29 04:23:12,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:12,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060551410] [2023-11-29 04:23:12,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:12,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:12,856 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:12,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [739363047] [2023-11-29 04:23:12,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:12,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:12,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:12,858 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:12,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 04:23:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:12,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:23:12,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:13,097 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-11-29 04:23:13,097 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:13,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:13,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060551410] [2023-11-29 04:23:13,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:13,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739363047] [2023-11-29 04:23:13,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739363047] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:23:13,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:23:13,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 04:23:13,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658952222] [2023-11-29 04:23:13,204 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:13,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:23:13,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:13,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:23:13,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:23:13,205 INFO L87 Difference]: Start difference. First operand 255 states and 341 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:23:13,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:13,798 INFO L93 Difference]: Finished difference Result 289 states and 342 transitions. [2023-11-29 04:23:13,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:23:13,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 54 [2023-11-29 04:23:13,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:13,801 INFO L225 Difference]: With dead ends: 289 [2023-11-29 04:23:13,801 INFO L226 Difference]: Without dead ends: 288 [2023-11-29 04:23:13,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:23:13,802 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 261 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:13,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 354 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:23:13,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2023-11-29 04:23:13,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 255. [2023-11-29 04:23:13,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 173 states have (on average 1.7283236994219653) internal successors, (299), 232 states have internal predecessors, (299), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:23:13,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 339 transitions. [2023-11-29 04:23:13,820 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 339 transitions. Word has length 54 [2023-11-29 04:23:13,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:13,821 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 339 transitions. [2023-11-29 04:23:13,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:23:13,821 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 339 transitions. [2023-11-29 04:23:13,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 04:23:13,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:13,822 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:13,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 04:23:14,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 04:23:14,023 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:14,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:14,023 INFO L85 PathProgramCache]: Analyzing trace with hash -85594241, now seen corresponding path program 1 times [2023-11-29 04:23:14,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:14,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11059281] [2023-11-29 04:23:14,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:14,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:14,035 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:14,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468543320] [2023-11-29 04:23:14,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:14,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:14,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:14,037 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:14,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 04:23:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:14,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:23:14,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:14,260 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:23:14,261 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:15,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:15,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11059281] [2023-11-29 04:23:15,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:15,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468543320] [2023-11-29 04:23:15,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468543320] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:23:15,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:23:15,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:23:15,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818192674] [2023-11-29 04:23:15,296 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:15,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:23:15,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:15,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:23:15,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:23:15,297 INFO L87 Difference]: Start difference. First operand 255 states and 339 transitions. Second operand has 8 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:23:18,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:18,580 INFO L93 Difference]: Finished difference Result 296 states and 348 transitions. [2023-11-29 04:23:18,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:23:18,581 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 55 [2023-11-29 04:23:18,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:18,582 INFO L225 Difference]: With dead ends: 296 [2023-11-29 04:23:18,582 INFO L226 Difference]: Without dead ends: 295 [2023-11-29 04:23:18,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:23:18,583 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 217 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:18,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 428 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-29 04:23:18,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-11-29 04:23:18,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 255. [2023-11-29 04:23:18,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 173 states have (on average 1.716763005780347) internal successors, (297), 232 states have internal predecessors, (297), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:23:18,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 337 transitions. [2023-11-29 04:23:18,604 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 337 transitions. Word has length 55 [2023-11-29 04:23:18,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:18,605 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 337 transitions. [2023-11-29 04:23:18,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 04:23:18,605 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 337 transitions. [2023-11-29 04:23:18,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 04:23:18,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:18,606 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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 04:23:18,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 04:23:18,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 04:23:18,807 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:18,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:18,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1585765133, now seen corresponding path program 1 times [2023-11-29 04:23:18,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:18,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012461040] [2023-11-29 04:23:18,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:18,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:18,816 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:18,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [547909961] [2023-11-29 04:23:18,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:18,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:18,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:18,817 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:18,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 04:23:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:18,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:23:18,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:19,031 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 04:23:19,032 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:19,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:19,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012461040] [2023-11-29 04:23:19,114 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:19,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547909961] [2023-11-29 04:23:19,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547909961] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:23:19,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:23:19,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:23:19,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334813670] [2023-11-29 04:23:19,115 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:19,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:23:19,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:19,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:23:19,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:23:19,116 INFO L87 Difference]: Start difference. First operand 255 states and 337 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:23:20,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:20,126 INFO L93 Difference]: Finished difference Result 293 states and 346 transitions. [2023-11-29 04:23:20,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:23:20,126 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 61 [2023-11-29 04:23:20,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:20,128 INFO L225 Difference]: With dead ends: 293 [2023-11-29 04:23:20,129 INFO L226 Difference]: Without dead ends: 291 [2023-11-29 04:23:20,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:23:20,130 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 195 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:20,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 344 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:23:20,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-29 04:23:20,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 255. [2023-11-29 04:23:20,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 173 states have (on average 1.69364161849711) internal successors, (293), 232 states have internal predecessors, (293), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:23:20,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 333 transitions. [2023-11-29 04:23:20,143 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 333 transitions. Word has length 61 [2023-11-29 04:23:20,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:20,143 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 333 transitions. [2023-11-29 04:23:20,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:23:20,143 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 333 transitions. [2023-11-29 04:23:20,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 04:23:20,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:20,144 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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 04:23:20,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 04:23:20,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 04:23:20,345 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:20,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:20,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1914078964, now seen corresponding path program 1 times [2023-11-29 04:23:20,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:20,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756463956] [2023-11-29 04:23:20,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:20,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:20,355 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:20,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1472781576] [2023-11-29 04:23:20,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:20,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:20,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:20,356 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:20,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 04:23:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:20,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:23:20,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:20,558 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 04:23:20,559 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:20,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:20,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756463956] [2023-11-29 04:23:20,692 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:20,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472781576] [2023-11-29 04:23:20,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472781576] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:23:20,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:23:20,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:23:20,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11063111] [2023-11-29 04:23:20,692 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:20,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:23:20,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:20,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:23:20,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:23:20,694 INFO L87 Difference]: Start difference. First operand 255 states and 333 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:23:21,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:21,837 INFO L93 Difference]: Finished difference Result 293 states and 342 transitions. [2023-11-29 04:23:21,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:23:21,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 62 [2023-11-29 04:23:21,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:21,840 INFO L225 Difference]: With dead ends: 293 [2023-11-29 04:23:21,840 INFO L226 Difference]: Without dead ends: 291 [2023-11-29 04:23:21,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:23:21,841 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 385 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:21,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 306 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:23:21,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-29 04:23:21,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 255. [2023-11-29 04:23:21,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 173 states have (on average 1.670520231213873) internal successors, (289), 232 states have internal predecessors, (289), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:23:21,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 329 transitions. [2023-11-29 04:23:21,857 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 329 transitions. Word has length 62 [2023-11-29 04:23:21,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:21,858 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 329 transitions. [2023-11-29 04:23:21,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:23:21,858 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 329 transitions. [2023-11-29 04:23:21,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 04:23:21,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:21,859 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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 04:23:21,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 04:23:22,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 04:23:22,060 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:22,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:22,060 INFO L85 PathProgramCache]: Analyzing trace with hash -793094161, now seen corresponding path program 1 times [2023-11-29 04:23:22,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:22,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77980136] [2023-11-29 04:23:22,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:22,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:22,068 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:22,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1194876555] [2023-11-29 04:23:22,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:22,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:22,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:22,070 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:22,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 04:23:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:22,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:23:22,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:22,222 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 04:23:22,222 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:22,392 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 04:23:22,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:22,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77980136] [2023-11-29 04:23:22,392 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:22,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194876555] [2023-11-29 04:23:22,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194876555] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:23:22,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:23:22,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 04:23:22,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794220249] [2023-11-29 04:23:22,393 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:22,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:23:22,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:22,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:23:22,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:23:22,394 INFO L87 Difference]: Start difference. First operand 255 states and 329 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 04:23:24,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:24,057 INFO L93 Difference]: Finished difference Result 312 states and 358 transitions. [2023-11-29 04:23:24,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:23:24,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 63 [2023-11-29 04:23:24,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:24,059 INFO L225 Difference]: With dead ends: 312 [2023-11-29 04:23:24,059 INFO L226 Difference]: Without dead ends: 310 [2023-11-29 04:23:24,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:23:24,060 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 634 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:24,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 393 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 04:23:24,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-29 04:23:24,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 260. [2023-11-29 04:23:24,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 178 states have (on average 1.646067415730337) internal successors, (293), 236 states have internal predecessors, (293), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 04:23:24,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 335 transitions. [2023-11-29 04:23:24,077 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 335 transitions. Word has length 63 [2023-11-29 04:23:24,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:24,077 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 335 transitions. [2023-11-29 04:23:24,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 04:23:24,077 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 335 transitions. [2023-11-29 04:23:24,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 04:23:24,078 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:24,078 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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 04:23:24,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 04:23:24,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 04:23:24,279 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:24,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:24,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1183884886, now seen corresponding path program 1 times [2023-11-29 04:23:24,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:24,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477268146] [2023-11-29 04:23:24,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:24,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:24,290 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:24,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [786572397] [2023-11-29 04:23:24,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:24,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:24,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:24,292 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:24,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 04:23:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:24,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:23:24,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:24,488 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 04:23:24,488 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:24,688 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 04:23:24,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:24,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477268146] [2023-11-29 04:23:24,689 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:24,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786572397] [2023-11-29 04:23:24,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786572397] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:23:24,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:23:24,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 04:23:24,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365440973] [2023-11-29 04:23:24,689 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:24,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:23:24,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:24,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:23:24,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:23:24,690 INFO L87 Difference]: Start difference. First operand 260 states and 335 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 04:23:25,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:25,057 INFO L93 Difference]: Finished difference Result 310 states and 354 transitions. [2023-11-29 04:23:25,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:23:25,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 64 [2023-11-29 04:23:25,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:25,060 INFO L225 Difference]: With dead ends: 310 [2023-11-29 04:23:25,060 INFO L226 Difference]: Without dead ends: 308 [2023-11-29 04:23:25,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:23:25,061 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 615 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:25,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 322 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:23:25,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2023-11-29 04:23:25,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 260. [2023-11-29 04:23:25,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 179 states have (on average 1.6145251396648044) internal successors, (289), 236 states have internal predecessors, (289), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 04:23:25,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 331 transitions. [2023-11-29 04:23:25,080 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 331 transitions. Word has length 64 [2023-11-29 04:23:25,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:25,080 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 331 transitions. [2023-11-29 04:23:25,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 04:23:25,080 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 331 transitions. [2023-11-29 04:23:25,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 04:23:25,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:25,081 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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 04:23:25,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 04:23:25,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 04:23:25,282 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:25,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:25,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1954274095, now seen corresponding path program 1 times [2023-11-29 04:23:25,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:25,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499295309] [2023-11-29 04:23:25,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:25,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:25,292 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:25,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2055492881] [2023-11-29 04:23:25,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:25,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:25,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:25,293 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:25,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 04:23:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:25,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:23:25,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:25,605 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-29 04:23:25,605 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:29,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:29,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499295309] [2023-11-29 04:23:29,919 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:29,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055492881] [2023-11-29 04:23:29,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055492881] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:23:29,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:23:29,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:23:29,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631176063] [2023-11-29 04:23:29,920 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:29,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:23:29,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:29,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:23:29,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=77, Unknown=1, NotChecked=0, Total=110 [2023-11-29 04:23:29,921 INFO L87 Difference]: Start difference. First operand 260 states and 331 transitions. Second operand has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:23:33,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:23:33,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:33,200 INFO L93 Difference]: Finished difference Result 292 states and 340 transitions. [2023-11-29 04:23:33,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:23:33,200 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 65 [2023-11-29 04:23:33,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:33,202 INFO L225 Difference]: With dead ends: 292 [2023-11-29 04:23:33,202 INFO L226 Difference]: Without dead ends: 291 [2023-11-29 04:23:33,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=36, Invalid=95, Unknown=1, NotChecked=0, Total=132 [2023-11-29 04:23:33,203 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 366 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:33,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 201 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 04:23:33,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-29 04:23:33,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 260. [2023-11-29 04:23:33,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 179 states have (on average 1.6033519553072626) internal successors, (287), 236 states have internal predecessors, (287), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 04:23:33,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 329 transitions. [2023-11-29 04:23:33,215 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 329 transitions. Word has length 65 [2023-11-29 04:23:33,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:33,215 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 329 transitions. [2023-11-29 04:23:33,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:23:33,216 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 329 transitions. [2023-11-29 04:23:33,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 04:23:33,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:33,216 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2023-11-29 04:23:33,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 04:23:33,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:33,417 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:33,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:33,417 INFO L85 PathProgramCache]: Analyzing trace with hash -452954696, now seen corresponding path program 1 times [2023-11-29 04:23:33,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:33,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227938358] [2023-11-29 04:23:33,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:33,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:33,427 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:33,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [779598459] [2023-11-29 04:23:33,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:33,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:33,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:33,428 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:33,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 04:23:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:33,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:23:33,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:33,629 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 04:23:33,629 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:34,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:34,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227938358] [2023-11-29 04:23:34,215 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:34,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779598459] [2023-11-29 04:23:34,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779598459] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:23:34,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:23:34,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:23:34,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769381911] [2023-11-29 04:23:34,216 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:34,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:23:34,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:34,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:23:34,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:23:34,217 INFO L87 Difference]: Start difference. First operand 260 states and 329 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:23:35,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:35,565 INFO L93 Difference]: Finished difference Result 291 states and 338 transitions. [2023-11-29 04:23:35,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:23:35,566 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 66 [2023-11-29 04:23:35,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:35,567 INFO L225 Difference]: With dead ends: 291 [2023-11-29 04:23:35,567 INFO L226 Difference]: Without dead ends: 290 [2023-11-29 04:23:35,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:23:35,568 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 490 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:35,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 306 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 04:23:35,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-11-29 04:23:35,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 260. [2023-11-29 04:23:35,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 179 states have (on average 1.5921787709497206) internal successors, (285), 236 states have internal predecessors, (285), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 04:23:35,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 327 transitions. [2023-11-29 04:23:35,584 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 327 transitions. Word has length 66 [2023-11-29 04:23:35,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:35,585 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 327 transitions. [2023-11-29 04:23:35,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:23:35,585 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 327 transitions. [2023-11-29 04:23:35,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 04:23:35,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:35,586 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:35,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 04:23:35,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:35,787 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:35,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:35,787 INFO L85 PathProgramCache]: Analyzing trace with hash 449823759, now seen corresponding path program 1 times [2023-11-29 04:23:35,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:35,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183078054] [2023-11-29 04:23:35,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:35,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:35,794 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:35,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1585409819] [2023-11-29 04:23:35,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:35,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:35,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:35,795 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:35,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 04:23:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:35,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:23:35,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:35,881 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 04:23:35,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:35,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:35,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183078054] [2023-11-29 04:23:35,881 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:35,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585409819] [2023-11-29 04:23:35,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585409819] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:35,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:35,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:23:35,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997575743] [2023-11-29 04:23:35,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:35,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:23:35,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:35,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:23:35,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:23:35,883 INFO L87 Difference]: Start difference. First operand 260 states and 327 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 04:23:36,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:36,440 INFO L93 Difference]: Finished difference Result 290 states and 336 transitions. [2023-11-29 04:23:36,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:23:36,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 72 [2023-11-29 04:23:36,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:36,442 INFO L225 Difference]: With dead ends: 290 [2023-11-29 04:23:36,442 INFO L226 Difference]: Without dead ends: 286 [2023-11-29 04:23:36,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 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 04:23:36,443 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 51 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:36,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 223 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:23:36,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-11-29 04:23:36,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 263. [2023-11-29 04:23:36,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 182 states have (on average 1.5604395604395604) internal successors, (284), 239 states have internal predecessors, (284), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 04:23:36,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 326 transitions. [2023-11-29 04:23:36,455 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 326 transitions. Word has length 72 [2023-11-29 04:23:36,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:36,456 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 326 transitions. [2023-11-29 04:23:36,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 04:23:36,456 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 326 transitions. [2023-11-29 04:23:36,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 04:23:36,456 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:36,456 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:36,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 04:23:36,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 04:23:36,657 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:36,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:36,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1511060975, now seen corresponding path program 1 times [2023-11-29 04:23:36,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:36,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527951795] [2023-11-29 04:23:36,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:36,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:36,667 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:36,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1502561622] [2023-11-29 04:23:36,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:36,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:36,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:36,668 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:36,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 04:23:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:36,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:23:36,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:36,865 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 04:23:36,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:36,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:36,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527951795] [2023-11-29 04:23:36,866 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:36,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502561622] [2023-11-29 04:23:36,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502561622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:36,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:36,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:23:36,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75830265] [2023-11-29 04:23:36,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:36,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:23:36,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:36,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:23:36,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:23:36,868 INFO L87 Difference]: Start difference. First operand 263 states and 326 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 04:23:36,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:36,978 INFO L93 Difference]: Finished difference Result 294 states and 338 transitions. [2023-11-29 04:23:36,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:23:36,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2023-11-29 04:23:36,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:36,981 INFO L225 Difference]: With dead ends: 294 [2023-11-29 04:23:36,981 INFO L226 Difference]: Without dead ends: 293 [2023-11-29 04:23:36,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 71 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 04:23:36,982 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 112 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:36,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 223 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:23:36,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-29 04:23:36,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 263. [2023-11-29 04:23:36,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 182 states have (on average 1.5494505494505495) internal successors, (282), 239 states have internal predecessors, (282), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 04:23:36,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 324 transitions. [2023-11-29 04:23:36,996 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 324 transitions. Word has length 74 [2023-11-29 04:23:36,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:36,996 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 324 transitions. [2023-11-29 04:23:36,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 04:23:36,996 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 324 transitions. [2023-11-29 04:23:36,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 04:23:36,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:36,997 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:37,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 04:23:37,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 04:23:37,198 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:37,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:37,198 INFO L85 PathProgramCache]: Analyzing trace with hash 401750145, now seen corresponding path program 1 times [2023-11-29 04:23:37,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:37,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76393048] [2023-11-29 04:23:37,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:37,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:37,207 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:37,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1948628615] [2023-11-29 04:23:37,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:37,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:37,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:37,208 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:37,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 04:23:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:37,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:23:37,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:37,361 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-11-29 04:23:37,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:37,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:37,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76393048] [2023-11-29 04:23:37,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:37,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948628615] [2023-11-29 04:23:37,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948628615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:37,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:37,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:23:37,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145542843] [2023-11-29 04:23:37,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:37,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:23:37,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:37,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:23:37,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:23:37,363 INFO L87 Difference]: Start difference. First operand 263 states and 324 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 04:23:37,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:37,529 INFO L93 Difference]: Finished difference Result 293 states and 336 transitions. [2023-11-29 04:23:37,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:23:37,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 75 [2023-11-29 04:23:37,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:37,531 INFO L225 Difference]: With dead ends: 293 [2023-11-29 04:23:37,531 INFO L226 Difference]: Without dead ends: 292 [2023-11-29 04:23:37,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 70 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 04:23:37,532 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 110 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:37,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 430 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:23:37,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-29 04:23:37,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 263. [2023-11-29 04:23:37,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 182 states have (on average 1.5384615384615385) internal successors, (280), 239 states have internal predecessors, (280), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 04:23:37,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 322 transitions. [2023-11-29 04:23:37,551 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 322 transitions. Word has length 75 [2023-11-29 04:23:37,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:37,552 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 322 transitions. [2023-11-29 04:23:37,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 04:23:37,552 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 322 transitions. [2023-11-29 04:23:37,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 04:23:37,553 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:37,553 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:37,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 04:23:37,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 04:23:37,753 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:37,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:37,754 INFO L85 PathProgramCache]: Analyzing trace with hash -430647277, now seen corresponding path program 1 times [2023-11-29 04:23:37,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:37,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987039853] [2023-11-29 04:23:37,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:37,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:37,769 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:37,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [780524756] [2023-11-29 04:23:37,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:37,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:37,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:37,770 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:37,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 04:23:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:37,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:23:37,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:37,871 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 04:23:37,872 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:37,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:37,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987039853] [2023-11-29 04:23:37,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:37,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780524756] [2023-11-29 04:23:37,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780524756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:37,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:37,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:23:37,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212606487] [2023-11-29 04:23:37,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:37,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:23:37,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:37,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:23:37,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:23:37,874 INFO L87 Difference]: Start difference. First operand 263 states and 322 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 04:23:38,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:38,412 INFO L93 Difference]: Finished difference Result 284 states and 326 transitions. [2023-11-29 04:23:38,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:23:38,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2023-11-29 04:23:38,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:38,415 INFO L225 Difference]: With dead ends: 284 [2023-11-29 04:23:38,415 INFO L226 Difference]: Without dead ends: 282 [2023-11-29 04:23:38,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 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 04:23:38,416 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 105 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:38,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 256 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:23:38,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-11-29 04:23:38,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 263. [2023-11-29 04:23:38,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 182 states have (on average 1.5164835164835164) internal successors, (276), 239 states have internal predecessors, (276), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 04:23:38,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 318 transitions. [2023-11-29 04:23:38,430 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 318 transitions. Word has length 76 [2023-11-29 04:23:38,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:38,430 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 318 transitions. [2023-11-29 04:23:38,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 04:23:38,431 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 318 transitions. [2023-11-29 04:23:38,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 04:23:38,431 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:38,431 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:38,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 04:23:38,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:38,632 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:38,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:38,632 INFO L85 PathProgramCache]: Analyzing trace with hash -465163581, now seen corresponding path program 1 times [2023-11-29 04:23:38,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:38,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753688851] [2023-11-29 04:23:38,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:38,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:38,640 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:38,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2052650998] [2023-11-29 04:23:38,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:38,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:38,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:38,642 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:38,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 04:23:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:38,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:23:38,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:38,751 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 04:23:38,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:38,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:38,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753688851] [2023-11-29 04:23:38,752 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:38,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052650998] [2023-11-29 04:23:38,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052650998] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:38,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:38,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:23:38,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535675584] [2023-11-29 04:23:38,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:38,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:23:38,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:38,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:23:38,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:23:38,753 INFO L87 Difference]: Start difference. First operand 263 states and 318 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 04:23:39,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:39,408 INFO L93 Difference]: Finished difference Result 282 states and 322 transitions. [2023-11-29 04:23:39,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:23:39,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 77 [2023-11-29 04:23:39,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:39,410 INFO L225 Difference]: With dead ends: 282 [2023-11-29 04:23:39,410 INFO L226 Difference]: Without dead ends: 280 [2023-11-29 04:23:39,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 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 04:23:39,411 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 100 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:39,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 261 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:23:39,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-11-29 04:23:39,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 263. [2023-11-29 04:23:39,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 182 states have (on average 1.4945054945054945) internal successors, (272), 239 states have internal predecessors, (272), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 04:23:39,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 314 transitions. [2023-11-29 04:23:39,430 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 314 transitions. Word has length 77 [2023-11-29 04:23:39,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:39,430 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 314 transitions. [2023-11-29 04:23:39,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 04:23:39,431 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 314 transitions. [2023-11-29 04:23:39,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-29 04:23:39,431 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:39,432 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:39,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 04:23:39,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:39,634 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:39,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:39,635 INFO L85 PathProgramCache]: Analyzing trace with hash -57355895, now seen corresponding path program 1 times [2023-11-29 04:23:39,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:39,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104286054] [2023-11-29 04:23:39,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:39,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:39,644 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:39,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [295627171] [2023-11-29 04:23:39,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:39,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:39,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:39,646 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:39,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 04:23:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:39,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:23:39,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:39,977 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-11-29 04:23:39,978 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:40,160 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-11-29 04:23:40,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:40,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104286054] [2023-11-29 04:23:40,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:40,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295627171] [2023-11-29 04:23:40,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295627171] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:23:40,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:23:40,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2023-11-29 04:23:40,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456092413] [2023-11-29 04:23:40,161 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:40,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:23:40,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:40,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:23:40,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:23:40,163 INFO L87 Difference]: Start difference. First operand 263 states and 314 transitions. Second operand has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 04:23:40,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:40,985 INFO L93 Difference]: Finished difference Result 311 states and 344 transitions. [2023-11-29 04:23:40,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:23:40,986 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 83 [2023-11-29 04:23:40,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:40,988 INFO L225 Difference]: With dead ends: 311 [2023-11-29 04:23:40,988 INFO L226 Difference]: Without dead ends: 310 [2023-11-29 04:23:40,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:23:40,989 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 400 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:40,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 337 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:23:40,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-29 04:23:41,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 278. [2023-11-29 04:23:41,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 196 states have (on average 1.5153061224489797) internal successors, (297), 253 states have internal predecessors, (297), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 04:23:41,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 341 transitions. [2023-11-29 04:23:41,010 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 341 transitions. Word has length 83 [2023-11-29 04:23:41,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:41,010 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 341 transitions. [2023-11-29 04:23:41,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 6 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 04:23:41,010 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 341 transitions. [2023-11-29 04:23:41,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 04:23:41,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:41,011 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:41,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 04:23:41,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 04:23:41,212 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:41,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:41,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1778032613, now seen corresponding path program 1 times [2023-11-29 04:23:41,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:41,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887583287] [2023-11-29 04:23:41,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:41,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:41,224 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:41,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1908162505] [2023-11-29 04:23:41,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:41,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:41,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:41,225 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:41,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 04:23:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:41,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:23:41,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 04:23:41,640 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:41,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:41,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887583287] [2023-11-29 04:23:41,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:41,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908162505] [2023-11-29 04:23:41,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908162505] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:41,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:41,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:23:41,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610584370] [2023-11-29 04:23:41,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:41,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:23:41,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:41,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:23:41,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:23:41,642 INFO L87 Difference]: Start difference. First operand 278 states and 341 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 04:23:42,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:42,804 INFO L93 Difference]: Finished difference Result 290 states and 341 transitions. [2023-11-29 04:23:42,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:23:42,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2023-11-29 04:23:42,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:42,806 INFO L225 Difference]: With dead ends: 290 [2023-11-29 04:23:42,806 INFO L226 Difference]: Without dead ends: 286 [2023-11-29 04:23:42,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 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 04:23:42,807 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 22 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:42,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 187 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:23:42,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-11-29 04:23:42,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 278. [2023-11-29 04:23:42,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 196 states have (on average 1.4744897959183674) internal successors, (289), 253 states have internal predecessors, (289), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 04:23:42,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 333 transitions. [2023-11-29 04:23:42,827 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 333 transitions. Word has length 84 [2023-11-29 04:23:42,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:42,827 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 333 transitions. [2023-11-29 04:23:42,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 04:23:42,828 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 333 transitions. [2023-11-29 04:23:42,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 04:23:42,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:42,828 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:42,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-29 04:23:43,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 04:23:43,029 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:43,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:43,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1443943455, now seen corresponding path program 1 times [2023-11-29 04:23:43,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:43,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160855079] [2023-11-29 04:23:43,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:43,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:43,038 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:43,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1106620099] [2023-11-29 04:23:43,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:43,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:43,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:43,039 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:43,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 04:23:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:43,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 04:23:43,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:43,912 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-29 04:23:43,912 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:44,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:44,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160855079] [2023-11-29 04:23:44,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:44,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106620099] [2023-11-29 04:23:44,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106620099] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:23:44,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:23:44,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:23:44,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379467141] [2023-11-29 04:23:44,090 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:44,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:23:44,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:44,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:23:44,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:23:44,091 INFO L87 Difference]: Start difference. First operand 278 states and 333 transitions. Second operand has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:23:46,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:46,429 INFO L93 Difference]: Finished difference Result 288 states and 335 transitions. [2023-11-29 04:23:46,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:23:46,429 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 88 [2023-11-29 04:23:46,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:46,431 INFO L225 Difference]: With dead ends: 288 [2023-11-29 04:23:46,431 INFO L226 Difference]: Without dead ends: 287 [2023-11-29 04:23:46,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:23:46,431 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 164 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:46,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 429 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 04:23:46,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-11-29 04:23:46,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 278. [2023-11-29 04:23:46,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 196 states have (on average 1.4642857142857142) internal successors, (287), 253 states have internal predecessors, (287), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 04:23:46,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 331 transitions. [2023-11-29 04:23:46,448 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 331 transitions. Word has length 88 [2023-11-29 04:23:46,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:46,448 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 331 transitions. [2023-11-29 04:23:46,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:23:46,449 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 331 transitions. [2023-11-29 04:23:46,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 04:23:46,449 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:46,449 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:46,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 04:23:46,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 04:23:46,650 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:46,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:46,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1812574287, now seen corresponding path program 1 times [2023-11-29 04:23:46,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:46,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461766929] [2023-11-29 04:23:46,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:46,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:46,658 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:46,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1804682309] [2023-11-29 04:23:46,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:46,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:46,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:46,659 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:46,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 04:23:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:46,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 04:23:46,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:52,151 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-29 04:23:52,152 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:52,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:52,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461766929] [2023-11-29 04:23:52,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:52,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804682309] [2023-11-29 04:23:52,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804682309] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:23:52,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:23:52,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:23:52,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187952663] [2023-11-29 04:23:52,603 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:52,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:23:52,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:52,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:23:52,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:23:52,605 INFO L87 Difference]: Start difference. First operand 278 states and 331 transitions. Second operand has 11 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:23:57,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:57,292 INFO L93 Difference]: Finished difference Result 287 states and 333 transitions. [2023-11-29 04:23:57,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:23:57,293 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 89 [2023-11-29 04:23:57,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:57,294 INFO L225 Difference]: With dead ends: 287 [2023-11-29 04:23:57,294 INFO L226 Difference]: Without dead ends: 286 [2023-11-29 04:23:57,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:23:57,295 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 167 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:57,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 509 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-29 04:23:57,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-11-29 04:23:57,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 278. [2023-11-29 04:23:57,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 196 states have (on average 1.4540816326530612) internal successors, (285), 253 states have internal predecessors, (285), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 04:23:57,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 329 transitions. [2023-11-29 04:23:57,312 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 329 transitions. Word has length 89 [2023-11-29 04:23:57,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:57,313 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 329 transitions. [2023-11-29 04:23:57,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 4 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 04:23:57,313 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 329 transitions. [2023-11-29 04:23:57,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 04:23:57,313 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:57,314 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:57,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-29 04:23:57,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 04:23:57,514 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:57,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:57,514 INFO L85 PathProgramCache]: Analyzing trace with hash 772495050, now seen corresponding path program 1 times [2023-11-29 04:23:57,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:57,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011485096] [2023-11-29 04:23:57,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:57,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:57,523 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:57,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1544754791] [2023-11-29 04:23:57,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:57,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:57,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:57,524 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:57,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 04:23:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:57,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:23:57,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:57,597 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:23:57,597 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:57,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:57,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011485096] [2023-11-29 04:23:57,597 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:57,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544754791] [2023-11-29 04:23:57,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544754791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:57,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:57,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:23:57,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509197373] [2023-11-29 04:23:57,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:57,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:23:57,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:57,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:23:57,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:23:57,598 INFO L87 Difference]: Start difference. First operand 278 states and 329 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-29 04:23:57,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:57,657 INFO L93 Difference]: Finished difference Result 278 states and 329 transitions. [2023-11-29 04:23:57,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:23:57,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 98 [2023-11-29 04:23:57,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:57,659 INFO L225 Difference]: With dead ends: 278 [2023-11-29 04:23:57,659 INFO L226 Difference]: Without dead ends: 277 [2023-11-29 04:23:57,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 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 04:23:57,660 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 43 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:57,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 238 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:23:57,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-11-29 04:23:57,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2023-11-29 04:23:57,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 196 states have (on average 1.4387755102040816) internal successors, (282), 252 states have internal predecessors, (282), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 04:23:57,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 326 transitions. [2023-11-29 04:23:57,681 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 326 transitions. Word has length 98 [2023-11-29 04:23:57,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:57,682 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 326 transitions. [2023-11-29 04:23:57,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-29 04:23:57,682 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 326 transitions. [2023-11-29 04:23:57,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 04:23:57,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:57,683 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:57,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 04:23:57,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:57,884 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:57,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:57,884 INFO L85 PathProgramCache]: Analyzing trace with hash 963878354, now seen corresponding path program 1 times [2023-11-29 04:23:57,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:57,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422843668] [2023-11-29 04:23:57,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:57,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:57,892 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:57,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1117101586] [2023-11-29 04:23:57,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:57,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:57,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:57,893 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:57,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 04:23:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:57,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:23:57,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:58,027 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:23:58,027 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:58,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:58,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422843668] [2023-11-29 04:23:58,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:58,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117101586] [2023-11-29 04:23:58,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117101586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:58,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:58,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:23:58,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616707963] [2023-11-29 04:23:58,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:58,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:23:58,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:58,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:23:58,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:23:58,029 INFO L87 Difference]: Start difference. First operand 277 states and 326 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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 04:23:58,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:58,081 INFO L93 Difference]: Finished difference Result 286 states and 330 transitions. [2023-11-29 04:23:58,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:23:58,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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 101 [2023-11-29 04:23:58,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:58,083 INFO L225 Difference]: With dead ends: 286 [2023-11-29 04:23:58,083 INFO L226 Difference]: Without dead ends: 285 [2023-11-29 04:23:58,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 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 04:23:58,084 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 14 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:58,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 428 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:23:58,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-29 04:23:58,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 278. [2023-11-29 04:23:58,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 197 states have (on average 1.4365482233502538) internal successors, (283), 253 states have internal predecessors, (283), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 04:23:58,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 327 transitions. [2023-11-29 04:23:58,098 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 327 transitions. Word has length 101 [2023-11-29 04:23:58,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:58,098 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 327 transitions. [2023-11-29 04:23:58,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 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 04:23:58,098 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 327 transitions. [2023-11-29 04:23:58,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 04:23:58,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:58,099 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:58,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 04:23:58,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-29 04:23:58,300 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:58,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:58,300 INFO L85 PathProgramCache]: Analyzing trace with hash -184541926, now seen corresponding path program 1 times [2023-11-29 04:23:58,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:58,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125778876] [2023-11-29 04:23:58,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:58,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:58,317 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:58,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [587394731] [2023-11-29 04:23:58,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:58,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:58,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:58,318 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:58,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 04:23:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:58,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:23:58,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:58,520 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:23:58,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:58,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:58,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125778876] [2023-11-29 04:23:58,521 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:58,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587394731] [2023-11-29 04:23:58,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587394731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:58,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:58,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:23:58,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534245493] [2023-11-29 04:23:58,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:58,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:23:58,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:58,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:23:58,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:23:58,522 INFO L87 Difference]: Start difference. First operand 278 states and 327 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 04:23:58,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:58,781 INFO L93 Difference]: Finished difference Result 285 states and 329 transitions. [2023-11-29 04:23:58,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:23:58,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 102 [2023-11-29 04:23:58,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:58,784 INFO L225 Difference]: With dead ends: 285 [2023-11-29 04:23:58,784 INFO L226 Difference]: Without dead ends: 284 [2023-11-29 04:23:58,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 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 04:23:58,785 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 13 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:58,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 305 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:23:58,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-29 04:23:58,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 279. [2023-11-29 04:23:58,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 198 states have (on average 1.4343434343434343) internal successors, (284), 254 states have internal predecessors, (284), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 04:23:58,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 328 transitions. [2023-11-29 04:23:58,801 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 328 transitions. Word has length 102 [2023-11-29 04:23:58,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:58,801 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 328 transitions. [2023-11-29 04:23:58,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 04:23:58,801 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 328 transitions. [2023-11-29 04:23:58,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 04:23:58,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:58,802 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:58,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 04:23:59,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:59,003 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:59,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:59,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1425832236, now seen corresponding path program 1 times [2023-11-29 04:23:59,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:59,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426001748] [2023-11-29 04:23:59,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:59,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:59,011 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:59,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1291699210] [2023-11-29 04:23:59,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:59,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:59,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:59,012 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:59,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 04:23:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:59,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:23:59,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:59,212 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:23:59,212 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:59,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:59,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426001748] [2023-11-29 04:23:59,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:59,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291699210] [2023-11-29 04:23:59,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291699210] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:59,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:59,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:23:59,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921533797] [2023-11-29 04:23:59,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:59,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:23:59,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:59,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:23:59,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:23:59,214 INFO L87 Difference]: Start difference. First operand 279 states and 328 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 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 04:23:59,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:59,324 INFO L93 Difference]: Finished difference Result 292 states and 336 transitions. [2023-11-29 04:23:59,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:23:59,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 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 103 [2023-11-29 04:23:59,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:59,327 INFO L225 Difference]: With dead ends: 292 [2023-11-29 04:23:59,327 INFO L226 Difference]: Without dead ends: 291 [2023-11-29 04:23:59,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 100 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 04:23:59,328 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 36 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:59,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 217 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:23:59,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-29 04:23:59,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 280. [2023-11-29 04:23:59,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 199 states have (on average 1.4321608040201006) internal successors, (285), 255 states have internal predecessors, (285), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 04:23:59,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 329 transitions. [2023-11-29 04:23:59,351 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 329 transitions. Word has length 103 [2023-11-29 04:23:59,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:59,352 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 329 transitions. [2023-11-29 04:23:59,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 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 04:23:59,352 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 329 transitions. [2023-11-29 04:23:59,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 04:23:59,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:59,352 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:23:59,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 04:23:59,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:59,553 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:23:59,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:59,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1251126180, now seen corresponding path program 1 times [2023-11-29 04:23:59,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:59,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532169836] [2023-11-29 04:23:59,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:59,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:59,563 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:59,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2093135034] [2023-11-29 04:23:59,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:59,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:59,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:59,565 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:59,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 04:23:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:59,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:23:59,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:59,774 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:23:59,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:59,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:59,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532169836] [2023-11-29 04:23:59,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:59,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093135034] [2023-11-29 04:23:59,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093135034] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:59,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:59,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:23:59,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650125573] [2023-11-29 04:23:59,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:59,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:23:59,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:59,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:23:59,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:23:59,776 INFO L87 Difference]: Start difference. First operand 280 states and 329 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 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 04:23:59,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:59,912 INFO L93 Difference]: Finished difference Result 303 states and 347 transitions. [2023-11-29 04:23:59,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:23:59,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 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 104 [2023-11-29 04:23:59,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:59,915 INFO L225 Difference]: With dead ends: 303 [2023-11-29 04:23:59,915 INFO L226 Difference]: Without dead ends: 302 [2023-11-29 04:23:59,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 101 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 04:23:59,916 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 81 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:59,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 242 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:23:59,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-11-29 04:23:59,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 287. [2023-11-29 04:23:59,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 206 states have (on average 1.4174757281553398) internal successors, (292), 262 states have internal predecessors, (292), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 04:23:59,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 336 transitions. [2023-11-29 04:23:59,936 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 336 transitions. Word has length 104 [2023-11-29 04:23:59,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:59,937 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 336 transitions. [2023-11-29 04:23:59,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 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 04:23:59,937 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 336 transitions. [2023-11-29 04:23:59,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 04:23:59,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:59,938 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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 04:23:59,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 04:24:00,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:00,138 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:24:00,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:00,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1653467349, now seen corresponding path program 1 times [2023-11-29 04:24:00,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:00,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804396520] [2023-11-29 04:24:00,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:00,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:00,147 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:00,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803670247] [2023-11-29 04:24:00,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:00,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:00,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:00,148 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:00,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 04:24:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:00,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 04:24:00,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:00,358 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 04:24:00,358 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:00,925 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 04:24:00,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:00,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804396520] [2023-11-29 04:24:00,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:00,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803670247] [2023-11-29 04:24:00,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803670247] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:24:00,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:24:00,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 04:24:00,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395679215] [2023-11-29 04:24:00,926 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:00,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 04:24:00,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:00,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 04:24:00,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:24:00,927 INFO L87 Difference]: Start difference. First operand 287 states and 336 transitions. Second operand has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 15 states have internal predecessors, (118), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 04:24:02,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:02,603 INFO L93 Difference]: Finished difference Result 1179 states and 1319 transitions. [2023-11-29 04:24:02,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 04:24:02,604 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 15 states have internal predecessors, (118), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) Word has length 104 [2023-11-29 04:24:02,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:02,611 INFO L225 Difference]: With dead ends: 1179 [2023-11-29 04:24:02,611 INFO L226 Difference]: Without dead ends: 1170 [2023-11-29 04:24:02,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=276, Invalid=780, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 04:24:02,613 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 2516 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 1702 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2516 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:02,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2516 Valid, 1016 Invalid, 1885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1702 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 04:24:02,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2023-11-29 04:24:02,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 508. [2023-11-29 04:24:02,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 412 states have (on average 1.4878640776699028) internal successors, (613), 467 states have internal predecessors, (613), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 04:24:02,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 689 transitions. [2023-11-29 04:24:02,665 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 689 transitions. Word has length 104 [2023-11-29 04:24:02,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:02,666 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 689 transitions. [2023-11-29 04:24:02,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.428571428571429) internal successors, (118), 15 states have internal predecessors, (118), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 04:24:02,666 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 689 transitions. [2023-11-29 04:24:02,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 04:24:02,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:02,667 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:02,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 04:24:02,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 04:24:02,868 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:24:02,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:02,868 INFO L85 PathProgramCache]: Analyzing trace with hash -130205738, now seen corresponding path program 1 times [2023-11-29 04:24:02,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:02,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491426763] [2023-11-29 04:24:02,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:02,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:02,879 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:02,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [336855454] [2023-11-29 04:24:02,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:02,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:02,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:02,881 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:02,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 04:24:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:02,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:24:02,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:03,009 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:24:03,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:24:03,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:03,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491426763] [2023-11-29 04:24:03,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:03,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336855454] [2023-11-29 04:24:03,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336855454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:03,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:03,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:24:03,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81398370] [2023-11-29 04:24:03,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:03,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:24:03,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:03,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:24:03,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:24:03,011 INFO L87 Difference]: Start difference. First operand 508 states and 689 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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 04:24:03,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:03,350 INFO L93 Difference]: Finished difference Result 525 states and 707 transitions. [2023-11-29 04:24:03,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:24:03,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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 105 [2023-11-29 04:24:03,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:03,354 INFO L225 Difference]: With dead ends: 525 [2023-11-29 04:24:03,354 INFO L226 Difference]: Without dead ends: 524 [2023-11-29 04:24:03,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 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 04:24:03,355 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 12 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:03,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 501 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:24:03,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-11-29 04:24:03,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 515. [2023-11-29 04:24:03,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 419 states have (on average 1.4844868735083532) internal successors, (622), 474 states have internal predecessors, (622), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 04:24:03,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 698 transitions. [2023-11-29 04:24:03,390 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 698 transitions. Word has length 105 [2023-11-29 04:24:03,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:03,391 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 698 transitions. [2023-11-29 04:24:03,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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 04:24:03,391 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 698 transitions. [2023-11-29 04:24:03,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 04:24:03,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:03,392 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:03,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 04:24:03,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 04:24:03,592 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:24:03,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:03,593 INFO L85 PathProgramCache]: Analyzing trace with hash -282119656, now seen corresponding path program 1 times [2023-11-29 04:24:03,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:03,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179810809] [2023-11-29 04:24:03,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:03,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:03,603 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:03,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [142595777] [2023-11-29 04:24:03,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:03,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:03,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:03,604 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:03,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 04:24:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:03,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:24:03,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:03,689 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:24:03,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:24:03,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:03,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179810809] [2023-11-29 04:24:03,690 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:03,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142595777] [2023-11-29 04:24:03,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142595777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:03,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:03,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:24:03,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656735951] [2023-11-29 04:24:03,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:03,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:24:03,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:03,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:24:03,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:24:03,692 INFO L87 Difference]: Start difference. First operand 515 states and 698 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-29 04:24:04,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:04,075 INFO L93 Difference]: Finished difference Result 577 states and 743 transitions. [2023-11-29 04:24:04,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:24:04,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 105 [2023-11-29 04:24:04,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:04,079 INFO L225 Difference]: With dead ends: 577 [2023-11-29 04:24:04,079 INFO L226 Difference]: Without dead ends: 576 [2023-11-29 04:24:04,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:24:04,080 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 253 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:04,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 453 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:24:04,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2023-11-29 04:24:04,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 515. [2023-11-29 04:24:04,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 419 states have (on average 1.4749403341288783) internal successors, (618), 474 states have internal predecessors, (618), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 04:24:04,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 694 transitions. [2023-11-29 04:24:04,109 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 694 transitions. Word has length 105 [2023-11-29 04:24:04,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:04,110 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 694 transitions. [2023-11-29 04:24:04,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-29 04:24:04,110 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 694 transitions. [2023-11-29 04:24:04,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 04:24:04,111 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:04,111 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:24:04,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 04:24:04,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 04:24:04,311 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:24:04,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:04,312 INFO L85 PathProgramCache]: Analyzing trace with hash 258589598, now seen corresponding path program 1 times [2023-11-29 04:24:04,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:04,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386697057] [2023-11-29 04:24:04,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:04,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:04,320 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:04,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291534466] [2023-11-29 04:24:04,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:04,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:04,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:04,321 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:04,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 04:24:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:04,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:24:04,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:04,668 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:24:04,668 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:24:04,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:04,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386697057] [2023-11-29 04:24:04,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:04,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291534466] [2023-11-29 04:24:04,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291534466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:24:04,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:24:04,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:24:04,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821108292] [2023-11-29 04:24:04,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:24:04,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:24:04,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:04,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:24:04,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:24:04,671 INFO L87 Difference]: Start difference. First operand 515 states and 694 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 04:24:04,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:04,897 INFO L93 Difference]: Finished difference Result 523 states and 700 transitions. [2023-11-29 04:24:04,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:24:04,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 106 [2023-11-29 04:24:04,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:04,901 INFO L225 Difference]: With dead ends: 523 [2023-11-29 04:24:04,901 INFO L226 Difference]: Without dead ends: 522 [2023-11-29 04:24:04,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 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 04:24:04,902 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 21 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:04,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 274 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:24:04,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-11-29 04:24:04,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 518. [2023-11-29 04:24:04,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 422 states have (on average 1.471563981042654) internal successors, (621), 477 states have internal predecessors, (621), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 04:24:04,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 697 transitions. [2023-11-29 04:24:04,943 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 697 transitions. Word has length 106 [2023-11-29 04:24:04,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:04,943 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 697 transitions. [2023-11-29 04:24:04,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 04:24:04,943 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 697 transitions. [2023-11-29 04:24:04,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 04:24:04,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:04,944 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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 04:24:04,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 04:24:05,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 04:24:05,145 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:24:05,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:05,145 INFO L85 PathProgramCache]: Analyzing trace with hash -155774665, now seen corresponding path program 1 times [2023-11-29 04:24:05,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:05,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646198956] [2023-11-29 04:24:05,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:05,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:05,153 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:05,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [487211778] [2023-11-29 04:24:05,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:05,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:05,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:05,155 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:05,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 04:24:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:05,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:24:05,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:05,502 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 04:24:05,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:05,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:05,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646198956] [2023-11-29 04:24:05,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:05,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487211778] [2023-11-29 04:24:05,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487211778] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:05,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:05,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:24:05,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675338653] [2023-11-29 04:24:05,554 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:05,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:24:05,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:05,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:24:05,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:24:05,555 INFO L87 Difference]: Start difference. First operand 518 states and 697 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 04:24:06,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:06,201 INFO L93 Difference]: Finished difference Result 550 states and 725 transitions. [2023-11-29 04:24:06,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:24:06,202 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 106 [2023-11-29 04:24:06,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:06,204 INFO L225 Difference]: With dead ends: 550 [2023-11-29 04:24:06,204 INFO L226 Difference]: Without dead ends: 549 [2023-11-29 04:24:06,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:24:06,205 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 473 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:06,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 567 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:24:06,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2023-11-29 04:24:06,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 518. [2023-11-29 04:24:06,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 422 states have (on average 1.4691943127962086) internal successors, (620), 477 states have internal predecessors, (620), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 04:24:06,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 696 transitions. [2023-11-29 04:24:06,245 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 696 transitions. Word has length 106 [2023-11-29 04:24:06,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:06,245 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 696 transitions. [2023-11-29 04:24:06,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 04:24:06,246 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 696 transitions. [2023-11-29 04:24:06,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 04:24:06,246 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:06,246 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:06,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 04:24:06,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 04:24:06,447 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:24:06,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:06,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1528558184, now seen corresponding path program 1 times [2023-11-29 04:24:06,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:06,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920746515] [2023-11-29 04:24:06,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:06,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:06,457 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:06,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [63124486] [2023-11-29 04:24:06,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:06,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:06,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:06,458 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:06,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 04:24:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:06,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:24:06,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:06,609 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 04:24:06,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:06,738 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 04:24:06,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:06,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920746515] [2023-11-29 04:24:06,738 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:06,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63124486] [2023-11-29 04:24:06,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63124486] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:24:06,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:24:06,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2023-11-29 04:24:06,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803522553] [2023-11-29 04:24:06,739 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:06,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:24:06,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:06,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:24:06,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:24:06,740 INFO L87 Difference]: Start difference. First operand 518 states and 696 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 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 04:24:07,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:07,912 INFO L93 Difference]: Finished difference Result 1135 states and 1491 transitions. [2023-11-29 04:24:07,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:24:07,913 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 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 109 [2023-11-29 04:24:07,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:07,920 INFO L225 Difference]: With dead ends: 1135 [2023-11-29 04:24:07,920 INFO L226 Difference]: Without dead ends: 1106 [2023-11-29 04:24:07,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 205 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:24:07,922 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 781 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:07,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 722 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:24:07,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2023-11-29 04:24:07,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 842. [2023-11-29 04:24:07,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 722 states have (on average 1.5858725761772854) internal successors, (1145), 777 states have internal predecessors, (1145), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-29 04:24:07,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1269 transitions. [2023-11-29 04:24:07,985 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1269 transitions. Word has length 109 [2023-11-29 04:24:07,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:07,986 INFO L495 AbstractCegarLoop]: Abstraction has 842 states and 1269 transitions. [2023-11-29 04:24:07,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 8 states have internal predecessors, (70), 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 04:24:07,986 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1269 transitions. [2023-11-29 04:24:07,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 04:24:07,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:07,987 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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, 1, 1] [2023-11-29 04:24:07,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 04:24:08,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 04:24:08,190 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:24:08,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:08,191 INFO L85 PathProgramCache]: Analyzing trace with hash -2035063929, now seen corresponding path program 1 times [2023-11-29 04:24:08,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:08,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131595103] [2023-11-29 04:24:08,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:08,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:08,199 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:08,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [859027933] [2023-11-29 04:24:08,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:08,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:08,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:08,200 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:08,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 04:24:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:08,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:24:08,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:08,391 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 04:24:08,391 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:08,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:08,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131595103] [2023-11-29 04:24:08,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:08,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859027933] [2023-11-29 04:24:08,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859027933] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:08,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:08,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:24:08,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360603275] [2023-11-29 04:24:08,614 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:08,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:24:08,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:08,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:24:08,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:24:08,615 INFO L87 Difference]: Start difference. First operand 842 states and 1269 transitions. Second operand has 11 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 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 04:24:10,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:10,520 INFO L93 Difference]: Finished difference Result 1576 states and 2280 transitions. [2023-11-29 04:24:10,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:24:10,521 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 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 112 [2023-11-29 04:24:10,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:10,528 INFO L225 Difference]: With dead ends: 1576 [2023-11-29 04:24:10,528 INFO L226 Difference]: Without dead ends: 1574 [2023-11-29 04:24:10,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2023-11-29 04:24:10,529 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 957 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:10,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 984 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 04:24:10,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2023-11-29 04:24:10,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1210. [2023-11-29 04:24:10,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1062 states have (on average 1.6337099811676083) internal successors, (1735), 1117 states have internal predecessors, (1735), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-29 04:24:10,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1915 transitions. [2023-11-29 04:24:10,600 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1915 transitions. Word has length 112 [2023-11-29 04:24:10,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:10,600 INFO L495 AbstractCegarLoop]: Abstraction has 1210 states and 1915 transitions. [2023-11-29 04:24:10,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 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 04:24:10,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1915 transitions. [2023-11-29 04:24:10,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 04:24:10,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:10,601 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:24:10,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 04:24:10,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:10,802 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:24:10,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:10,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1337527720, now seen corresponding path program 1 times [2023-11-29 04:24:10,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:10,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301710393] [2023-11-29 04:24:10,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:10,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:10,813 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:10,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1768457611] [2023-11-29 04:24:10,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:10,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:10,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:10,815 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:10,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 04:24:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:10,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:24:10,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:11,034 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 04:24:11,034 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:11,164 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-29 04:24:11,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:11,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301710393] [2023-11-29 04:24:11,165 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:11,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768457611] [2023-11-29 04:24:11,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768457611] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:24:11,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:24:11,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-29 04:24:11,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860124717] [2023-11-29 04:24:11,165 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:11,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:24:11,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:11,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:24:11,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:24:11,167 INFO L87 Difference]: Start difference. First operand 1210 states and 1915 transitions. Second operand has 13 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 5 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2023-11-29 04:24:16,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 04:24:20,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 04:24:24,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 04:24:28,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 04:24:32,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 04:24:36,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 04:24:40,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 04:24:44,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 04:24:48,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 04:24:52,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-29 04:24:52,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:52,489 INFO L93 Difference]: Finished difference Result 1931 states and 3025 transitions. [2023-11-29 04:24:52,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:24:52,489 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 5 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 113 [2023-11-29 04:24:52,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:52,498 INFO L225 Difference]: With dead ends: 1931 [2023-11-29 04:24:52,498 INFO L226 Difference]: Without dead ends: 1924 [2023-11-29 04:24:52,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2023-11-29 04:24:52,499 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 1003 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 63 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:52,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 1050 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1148 Invalid, 10 Unknown, 0 Unchecked, 41.1s Time] [2023-11-29 04:24:52,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2023-11-29 04:24:52,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1513. [2023-11-29 04:24:52,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1342 states have (on average 1.645305514157973) internal successors, (2208), 1397 states have internal predecessors, (2208), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 04:24:52,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2434 transitions. [2023-11-29 04:24:52,623 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2434 transitions. Word has length 113 [2023-11-29 04:24:52,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:52,623 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2434 transitions. [2023-11-29 04:24:52,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 11.25) internal successors, (135), 11 states have internal predecessors, (135), 5 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2023-11-29 04:24:52,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2434 transitions. [2023-11-29 04:24:52,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 04:24:52,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:52,624 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 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 04:24:52,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 04:24:52,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:52,825 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:24:52,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:52,825 INFO L85 PathProgramCache]: Analyzing trace with hash -109099795, now seen corresponding path program 1 times [2023-11-29 04:24:52,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:52,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641917479] [2023-11-29 04:24:52,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:52,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:52,834 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:52,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [197607273] [2023-11-29 04:24:52,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:52,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:52,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:52,836 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:52,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 04:24:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:52,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 04:24:52,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:53,366 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-29 04:24:53,366 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:53,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:53,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641917479] [2023-11-29 04:24:53,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:53,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197607273] [2023-11-29 04:24:53,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197607273] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:53,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:53,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 04:24:53,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979636046] [2023-11-29 04:24:53,497 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:53,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:24:53,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:53,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:24:53,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:24:53,498 INFO L87 Difference]: Start difference. First operand 1513 states and 2434 transitions. Second operand has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 04:24:55,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:55,142 INFO L93 Difference]: Finished difference Result 1665 states and 2620 transitions. [2023-11-29 04:24:55,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:24:55,143 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) Word has length 119 [2023-11-29 04:24:55,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:55,150 INFO L225 Difference]: With dead ends: 1665 [2023-11-29 04:24:55,150 INFO L226 Difference]: Without dead ends: 1664 [2023-11-29 04:24:55,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:24:55,151 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 496 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:55,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 473 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:24:55,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2023-11-29 04:24:55,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1513. [2023-11-29 04:24:55,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1342 states have (on average 1.6445603576751118) internal successors, (2207), 1397 states have internal predecessors, (2207), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 04:24:55,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2433 transitions. [2023-11-29 04:24:55,237 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2433 transitions. Word has length 119 [2023-11-29 04:24:55,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:55,237 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2433 transitions. [2023-11-29 04:24:55,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 04:24:55,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2433 transitions. [2023-11-29 04:24:55,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 04:24:55,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:55,238 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 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 04:24:55,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2023-11-29 04:24:55,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:55,439 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:24:55,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:55,439 INFO L85 PathProgramCache]: Analyzing trace with hash 912873735, now seen corresponding path program 1 times [2023-11-29 04:24:55,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:55,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16476260] [2023-11-29 04:24:55,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:55,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:55,447 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:55,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1095793510] [2023-11-29 04:24:55,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:55,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:55,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:55,449 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:55,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 04:24:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:55,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 04:24:55,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:56,058 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-29 04:24:56,058 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:56,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:56,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16476260] [2023-11-29 04:24:56,276 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:56,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095793510] [2023-11-29 04:24:56,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095793510] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:56,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:56,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 04:24:56,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312946715] [2023-11-29 04:24:56,277 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:56,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:24:56,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:56,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:24:56,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:24:56,278 INFO L87 Difference]: Start difference. First operand 1513 states and 2433 transitions. Second operand has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 04:24:58,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:24:58,080 INFO L93 Difference]: Finished difference Result 1665 states and 2619 transitions. [2023-11-29 04:24:58,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:24:58,080 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) Word has length 120 [2023-11-29 04:24:58,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:24:58,087 INFO L225 Difference]: With dead ends: 1665 [2023-11-29 04:24:58,087 INFO L226 Difference]: Without dead ends: 1664 [2023-11-29 04:24:58,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:24:58,088 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 806 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:24:58,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 453 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:24:58,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2023-11-29 04:24:58,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1513. [2023-11-29 04:24:58,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1342 states have (on average 1.6438152011922504) internal successors, (2206), 1397 states have internal predecessors, (2206), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 04:24:58,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2432 transitions. [2023-11-29 04:24:58,173 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2432 transitions. Word has length 120 [2023-11-29 04:24:58,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:24:58,173 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2432 transitions. [2023-11-29 04:24:58,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 04:24:58,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2432 transitions. [2023-11-29 04:24:58,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 04:24:58,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:24:58,174 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 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 04:24:58,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 04:24:58,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-11-29 04:24:58,374 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:24:58,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:24:58,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1765685201, now seen corresponding path program 1 times [2023-11-29 04:24:58,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:24:58,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276365762] [2023-11-29 04:24:58,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:58,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:24:58,382 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:24:58,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [403287320] [2023-11-29 04:24:58,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:24:58,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:24:58,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:24:58,384 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:24:58,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 04:24:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:24:58,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 04:24:58,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:24:58,929 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-29 04:24:58,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:24:59,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:24:59,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276365762] [2023-11-29 04:24:59,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:24:59,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403287320] [2023-11-29 04:24:59,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403287320] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:24:59,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:24:59,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:24:59,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844760087] [2023-11-29 04:24:59,052 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:24:59,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:24:59,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:24:59,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:24:59,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:24:59,053 INFO L87 Difference]: Start difference. First operand 1513 states and 2432 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:25:01,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:01,141 INFO L93 Difference]: Finished difference Result 1648 states and 2596 transitions. [2023-11-29 04:25:01,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:25:01,141 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 121 [2023-11-29 04:25:01,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:01,148 INFO L225 Difference]: With dead ends: 1648 [2023-11-29 04:25:01,148 INFO L226 Difference]: Without dead ends: 1647 [2023-11-29 04:25:01,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:25:01,149 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 362 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:01,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 593 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 04:25:01,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2023-11-29 04:25:01,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1513. [2023-11-29 04:25:01,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1342 states have (on average 1.6430700447093889) internal successors, (2205), 1397 states have internal predecessors, (2205), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 04:25:01,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2431 transitions. [2023-11-29 04:25:01,230 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2431 transitions. Word has length 121 [2023-11-29 04:25:01,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:01,230 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2431 transitions. [2023-11-29 04:25:01,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 9 states have internal predecessors, (75), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:25:01,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2431 transitions. [2023-11-29 04:25:01,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 04:25:01,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:01,231 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:01,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 04:25:01,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 04:25:01,432 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:25:01,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:01,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1098333705, now seen corresponding path program 1 times [2023-11-29 04:25:01,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:01,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545742534] [2023-11-29 04:25:01,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:01,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:01,440 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:01,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [119785081] [2023-11-29 04:25:01,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:01,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:01,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:01,442 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:01,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 04:25:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:01,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 04:25:01,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:02,007 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-29 04:25:02,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:02,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:02,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545742534] [2023-11-29 04:25:02,156 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:02,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119785081] [2023-11-29 04:25:02,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119785081] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:02,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:02,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:25:02,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020106660] [2023-11-29 04:25:02,156 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:02,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:25:02,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:02,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:25:02,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:25:02,158 INFO L87 Difference]: Start difference. First operand 1513 states and 2431 transitions. Second operand has 9 states, 8 states have (on average 9.5) internal successors, (76), 9 states have internal predecessors, (76), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:25:04,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:04,241 INFO L93 Difference]: Finished difference Result 1647 states and 2595 transitions. [2023-11-29 04:25:04,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:25:04,241 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), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 122 [2023-11-29 04:25:04,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:04,251 INFO L225 Difference]: With dead ends: 1647 [2023-11-29 04:25:04,251 INFO L226 Difference]: Without dead ends: 1646 [2023-11-29 04:25:04,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:25:04,253 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 474 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:04,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 533 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 04:25:04,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2023-11-29 04:25:04,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1513. [2023-11-29 04:25:04,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1342 states have (on average 1.6423248882265276) internal successors, (2204), 1397 states have internal predecessors, (2204), 113 states have call successors, (113), 2 states have call predecessors, (113), 2 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 04:25:04,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2430 transitions. [2023-11-29 04:25:04,340 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2430 transitions. Word has length 122 [2023-11-29 04:25:04,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:04,340 INFO L495 AbstractCegarLoop]: Abstraction has 1513 states and 2430 transitions. [2023-11-29 04:25:04,340 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), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 04:25:04,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2430 transitions. [2023-11-29 04:25:04,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 04:25:04,341 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:04,341 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:04,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 04:25:04,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:04,542 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:25:04,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:04,542 INFO L85 PathProgramCache]: Analyzing trace with hash -311393423, now seen corresponding path program 1 times [2023-11-29 04:25:04,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:04,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576455717] [2023-11-29 04:25:04,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:04,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:04,553 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:04,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1891501333] [2023-11-29 04:25:04,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:04,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:04,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:04,554 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:04,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 04:25:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:04,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 04:25:04,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:08,696 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 04:25:08,696 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:09,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:09,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576455717] [2023-11-29 04:25:09,353 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:09,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891501333] [2023-11-29 04:25:09,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891501333] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:09,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:09,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:25:09,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829787956] [2023-11-29 04:25:09,354 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:09,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:25:09,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:09,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:25:09,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:25:09,355 INFO L87 Difference]: Start difference. First operand 1513 states and 2430 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 04:25:22,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:22,364 INFO L93 Difference]: Finished difference Result 2912 states and 4638 transitions. [2023-11-29 04:25:22,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:25:22,365 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) Word has length 123 [2023-11-29 04:25:22,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:22,374 INFO L225 Difference]: With dead ends: 2912 [2023-11-29 04:25:22,374 INFO L226 Difference]: Without dead ends: 2911 [2023-11-29 04:25:22,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2023-11-29 04:25:22,376 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 545 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:22,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 771 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1922 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2023-11-29 04:25:22,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2023-11-29 04:25:22,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2479. [2023-11-29 04:25:22,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2479 states, 2236 states have (on average 1.6703935599284436) internal successors, (3735), 2291 states have internal predecessors, (3735), 185 states have call successors, (185), 2 states have call predecessors, (185), 2 states have return successors, (185), 185 states have call predecessors, (185), 185 states have call successors, (185) [2023-11-29 04:25:22,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2479 states to 2479 states and 4105 transitions. [2023-11-29 04:25:22,585 INFO L78 Accepts]: Start accepts. Automaton has 2479 states and 4105 transitions. Word has length 123 [2023-11-29 04:25:22,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:22,585 INFO L495 AbstractCegarLoop]: Abstraction has 2479 states and 4105 transitions. [2023-11-29 04:25:22,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 14 states have internal predecessors, (80), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-29 04:25:22,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2479 states and 4105 transitions. [2023-11-29 04:25:22,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 04:25:22,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:22,587 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:22,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2023-11-29 04:25:22,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 04:25:22,787 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:25:22,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:22,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1063261429, now seen corresponding path program 1 times [2023-11-29 04:25:22,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:22,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149230082] [2023-11-29 04:25:22,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:22,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:22,798 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:22,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1770255714] [2023-11-29 04:25:22,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:22,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:22,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:22,800 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:22,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 04:25:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:22,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:25:22,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:23,011 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 04:25:23,011 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:31,371 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-29 04:25:31,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:31,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149230082] [2023-11-29 04:25:31,371 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:31,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770255714] [2023-11-29 04:25:31,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770255714] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:25:31,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:25:31,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-11-29 04:25:31,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421708022] [2023-11-29 04:25:31,372 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:31,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:25:31,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:31,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:25:31,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=17, Unknown=2, NotChecked=0, Total=30 [2023-11-29 04:25:31,373 INFO L87 Difference]: Start difference. First operand 2479 states and 4105 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 04:25:32,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:32,430 INFO L93 Difference]: Finished difference Result 2831 states and 4619 transitions. [2023-11-29 04:25:32,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:25:32,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 124 [2023-11-29 04:25:32,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:32,438 INFO L225 Difference]: With dead ends: 2831 [2023-11-29 04:25:32,438 INFO L226 Difference]: Without dead ends: 2824 [2023-11-29 04:25:32,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 241 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=15, Invalid=25, Unknown=2, NotChecked=0, Total=42 [2023-11-29 04:25:32,440 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 103 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:32,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 553 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 04:25:32,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2023-11-29 04:25:32,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 2771. [2023-11-29 04:25:32,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6687974430683181) internal successors, (4177), 2558 states have internal predecessors, (4177), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 04:25:32,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4597 transitions. [2023-11-29 04:25:32,689 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4597 transitions. Word has length 124 [2023-11-29 04:25:32,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:32,689 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4597 transitions. [2023-11-29 04:25:32,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 04:25:32,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4597 transitions. [2023-11-29 04:25:32,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 04:25:32,690 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:32,691 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:32,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 04:25:32,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 04:25:32,891 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:25:32,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:32,892 INFO L85 PathProgramCache]: Analyzing trace with hash -545325671, now seen corresponding path program 1 times [2023-11-29 04:25:32,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:32,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833515971] [2023-11-29 04:25:32,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:32,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:32,903 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:32,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [216349491] [2023-11-29 04:25:32,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:32,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:32,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:32,905 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:32,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 04:25:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:32,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 04:25:32,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:33,561 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 04:25:33,561 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:41,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:41,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833515971] [2023-11-29 04:25:41,941 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:41,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216349491] [2023-11-29 04:25:41,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216349491] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:41,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:41,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:25:41,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438426196] [2023-11-29 04:25:41,942 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:41,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:25:41,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:41,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:25:41,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=166, Unknown=2, NotChecked=0, Total=210 [2023-11-29 04:25:41,943 INFO L87 Difference]: Start difference. First operand 2771 states and 4597 transitions. Second operand has 11 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 04:25:44,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:44,132 INFO L93 Difference]: Finished difference Result 2822 states and 4622 transitions. [2023-11-29 04:25:44,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:25:44,133 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 130 [2023-11-29 04:25:44,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:44,141 INFO L225 Difference]: With dead ends: 2822 [2023-11-29 04:25:44,141 INFO L226 Difference]: Without dead ends: 2820 [2023-11-29 04:25:44,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=89, Invalid=329, Unknown=2, NotChecked=0, Total=420 [2023-11-29 04:25:44,143 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 463 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:44,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 474 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 04:25:44,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2023-11-29 04:25:44,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2771. [2023-11-29 04:25:44,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6664003196164603) internal successors, (4171), 2558 states have internal predecessors, (4171), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 04:25:44,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4591 transitions. [2023-11-29 04:25:44,310 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4591 transitions. Word has length 130 [2023-11-29 04:25:44,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:44,310 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4591 transitions. [2023-11-29 04:25:44,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 04:25:44,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4591 transitions. [2023-11-29 04:25:44,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 04:25:44,311 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:44,311 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:44,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 04:25:44,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 04:25:44,511 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:25:44,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:44,512 INFO L85 PathProgramCache]: Analyzing trace with hash 274773480, now seen corresponding path program 1 times [2023-11-29 04:25:44,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:44,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736765343] [2023-11-29 04:25:44,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:44,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:44,520 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:44,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [912297893] [2023-11-29 04:25:44,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:44,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:44,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:44,521 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:44,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 04:25:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:44,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:25:44,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:45,290 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 04:25:45,290 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:49,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:49,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736765343] [2023-11-29 04:25:49,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:49,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912297893] [2023-11-29 04:25:49,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912297893] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:49,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:49,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 04:25:49,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059214217] [2023-11-29 04:25:49,645 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:49,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:25:49,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:49,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:25:49,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=136, Unknown=1, NotChecked=0, Total=182 [2023-11-29 04:25:49,647 INFO L87 Difference]: Start difference. First operand 2771 states and 4591 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:25:51,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:51,741 INFO L93 Difference]: Finished difference Result 2820 states and 4616 transitions. [2023-11-29 04:25:51,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:25:51,742 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), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 131 [2023-11-29 04:25:51,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:51,747 INFO L225 Difference]: With dead ends: 2820 [2023-11-29 04:25:51,747 INFO L226 Difference]: Without dead ends: 2818 [2023-11-29 04:25:51,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=74, Invalid=231, Unknown=1, NotChecked=0, Total=306 [2023-11-29 04:25:51,748 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 412 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:51,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 565 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 982 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 04:25:51,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2023-11-29 04:25:51,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 2771. [2023-11-29 04:25:51,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6640031961646025) internal successors, (4165), 2558 states have internal predecessors, (4165), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 04:25:51,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4585 transitions. [2023-11-29 04:25:51,908 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4585 transitions. Word has length 131 [2023-11-29 04:25:51,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:51,908 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4585 transitions. [2023-11-29 04:25:51,908 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), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:25:51,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4585 transitions. [2023-11-29 04:25:51,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 04:25:51,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:51,909 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:51,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 04:25:52,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 04:25:52,110 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:25:52,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:52,110 INFO L85 PathProgramCache]: Analyzing trace with hash -71956613, now seen corresponding path program 1 times [2023-11-29 04:25:52,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:52,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124719845] [2023-11-29 04:25:52,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:52,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:52,122 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:52,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261322598] [2023-11-29 04:25:52,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:52,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:52,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:52,123 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:52,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 04:25:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:52,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 04:25:52,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:52,775 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 04:25:52,775 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:52,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:52,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124719845] [2023-11-29 04:25:52,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:52,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261322598] [2023-11-29 04:25:52,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261322598] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:52,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:52,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:25:52,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491484858] [2023-11-29 04:25:52,954 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:52,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:25:52,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:52,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:25:52,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:25:52,955 INFO L87 Difference]: Start difference. First operand 2771 states and 4585 transitions. Second operand has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:25:55,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:55,048 INFO L93 Difference]: Finished difference Result 2833 states and 4632 transitions. [2023-11-29 04:25:55,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:25:55,049 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 132 [2023-11-29 04:25:55,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:55,053 INFO L225 Difference]: With dead ends: 2833 [2023-11-29 04:25:55,054 INFO L226 Difference]: Without dead ends: 2832 [2023-11-29 04:25:55,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:25:55,055 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 339 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:55,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 514 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 04:25:55,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2023-11-29 04:25:55,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 2771. [2023-11-29 04:25:55,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.663603675589293) internal successors, (4164), 2558 states have internal predecessors, (4164), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 04:25:55,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4584 transitions. [2023-11-29 04:25:55,299 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4584 transitions. Word has length 132 [2023-11-29 04:25:55,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:55,299 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4584 transitions. [2023-11-29 04:25:55,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:25:55,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4584 transitions. [2023-11-29 04:25:55,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-29 04:25:55,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:55,301 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:55,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2023-11-29 04:25:55,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:55,501 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:25:55,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:55,501 INFO L85 PathProgramCache]: Analyzing trace with hash 2064312394, now seen corresponding path program 1 times [2023-11-29 04:25:55,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:55,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525893457] [2023-11-29 04:25:55,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:55,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:55,511 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:55,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [573691575] [2023-11-29 04:25:55,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:55,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:55,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:55,512 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:55,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 04:25:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:55,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 04:25:55,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:56,202 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 04:25:56,202 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:56,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:56,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525893457] [2023-11-29 04:25:56,730 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:56,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573691575] [2023-11-29 04:25:56,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573691575] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:56,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:56,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:25:56,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420758986] [2023-11-29 04:25:56,731 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:56,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:25:56,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:56,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:25:56,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:25:56,732 INFO L87 Difference]: Start difference. First operand 2771 states and 4584 transitions. Second operand has 9 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:25:58,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:25:58,535 INFO L93 Difference]: Finished difference Result 2833 states and 4631 transitions. [2023-11-29 04:25:58,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:25:58,536 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 133 [2023-11-29 04:25:58,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:25:58,543 INFO L225 Difference]: With dead ends: 2833 [2023-11-29 04:25:58,543 INFO L226 Difference]: Without dead ends: 2832 [2023-11-29 04:25:58,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:25:58,545 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 285 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:25:58,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 539 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 04:25:58,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2023-11-29 04:25:58,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 2771. [2023-11-29 04:25:58,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.663204155013983) internal successors, (4163), 2558 states have internal predecessors, (4163), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 04:25:58,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4583 transitions. [2023-11-29 04:25:58,723 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4583 transitions. Word has length 133 [2023-11-29 04:25:58,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:25:58,724 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4583 transitions. [2023-11-29 04:25:58,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 04:25:58,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4583 transitions. [2023-11-29 04:25:58,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 04:25:58,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:25:58,725 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:25:58,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 04:25:58,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2023-11-29 04:25:58,925 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:25:58,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:25:58,925 INFO L85 PathProgramCache]: Analyzing trace with hash -430825123, now seen corresponding path program 1 times [2023-11-29 04:25:58,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:25:58,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303786824] [2023-11-29 04:25:58,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:58,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:25:58,932 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:25:58,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [302076824] [2023-11-29 04:25:58,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:25:58,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:25:58,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:25:58,933 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:25:58,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 04:25:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:25:59,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:25:59,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:25:59,361 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 6 proven. 29 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-29 04:25:59,361 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:59,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:59,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303786824] [2023-11-29 04:25:59,469 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:59,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302076824] [2023-11-29 04:25:59,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302076824] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:25:59,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:25:59,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:25:59,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021739250] [2023-11-29 04:25:59,470 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:59,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:25:59,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:59,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:25:59,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:25:59,471 INFO L87 Difference]: Start difference. First operand 2771 states and 4583 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:26:01,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:01,191 INFO L93 Difference]: Finished difference Result 2856 states and 4640 transitions. [2023-11-29 04:26:01,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:26:01,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 134 [2023-11-29 04:26:01,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:01,197 INFO L225 Difference]: With dead ends: 2856 [2023-11-29 04:26:01,198 INFO L226 Difference]: Without dead ends: 2851 [2023-11-29 04:26:01,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:26:01,199 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 302 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:01,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 566 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 04:26:01,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2023-11-29 04:26:01,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2771. [2023-11-29 04:26:01,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6564123052337196) internal successors, (4146), 2558 states have internal predecessors, (4146), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 04:26:01,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4566 transitions. [2023-11-29 04:26:01,393 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4566 transitions. Word has length 134 [2023-11-29 04:26:01,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:01,394 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4566 transitions. [2023-11-29 04:26:01,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:26:01,394 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4566 transitions. [2023-11-29 04:26:01,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 04:26:01,395 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:01,395 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:01,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 04:26:01,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:01,596 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:26:01,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:01,596 INFO L85 PathProgramCache]: Analyzing trace with hash -470676820, now seen corresponding path program 1 times [2023-11-29 04:26:01,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:01,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615506599] [2023-11-29 04:26:01,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:01,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:01,606 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:01,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006957491] [2023-11-29 04:26:01,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:01,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:01,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:01,607 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:01,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 04:26:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:01,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 04:26:01,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:02,962 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 6 proven. 39 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-29 04:26:02,962 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:03,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:03,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615506599] [2023-11-29 04:26:03,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:03,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006957491] [2023-11-29 04:26:03,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006957491] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:03,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:03,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:26:03,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795171842] [2023-11-29 04:26:03,188 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:03,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:26:03,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:03,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:26:03,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:26:03,189 INFO L87 Difference]: Start difference. First operand 2771 states and 4566 transitions. Second operand has 13 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 04:26:07,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:07,263 INFO L93 Difference]: Finished difference Result 2831 states and 4613 transitions. [2023-11-29 04:26:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:26:07,263 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 135 [2023-11-29 04:26:07,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:07,270 INFO L225 Difference]: With dead ends: 2831 [2023-11-29 04:26:07,270 INFO L226 Difference]: Without dead ends: 2830 [2023-11-29 04:26:07,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:26:07,272 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 355 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:07,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 374 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-29 04:26:07,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2023-11-29 04:26:07,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 2771. [2023-11-29 04:26:07,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6552137435077907) internal successors, (4143), 2558 states have internal predecessors, (4143), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 04:26:07,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4563 transitions. [2023-11-29 04:26:07,460 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4563 transitions. Word has length 135 [2023-11-29 04:26:07,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:07,461 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4563 transitions. [2023-11-29 04:26:07,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 04:26:07,461 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4563 transitions. [2023-11-29 04:26:07,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-29 04:26:07,462 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:07,462 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:07,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 04:26:07,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2023-11-29 04:26:07,662 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:26:07,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:07,662 INFO L85 PathProgramCache]: Analyzing trace with hash -424488445, now seen corresponding path program 1 times [2023-11-29 04:26:07,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:07,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989080986] [2023-11-29 04:26:07,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:07,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:07,670 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:07,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [717102372] [2023-11-29 04:26:07,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:07,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:07,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:07,671 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:07,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 04:26:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:07,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 04:26:07,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:09,610 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 6 proven. 44 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2023-11-29 04:26:09,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:10,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:10,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989080986] [2023-11-29 04:26:10,468 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:10,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717102372] [2023-11-29 04:26:10,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717102372] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:10,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:10,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:26:10,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743875493] [2023-11-29 04:26:10,469 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:10,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:26:10,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:10,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:26:10,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:26:10,470 INFO L87 Difference]: Start difference. First operand 2771 states and 4563 transitions. Second operand has 14 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-29 04:26:15,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:15,049 INFO L93 Difference]: Finished difference Result 2816 states and 4590 transitions. [2023-11-29 04:26:15,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:26:15,050 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 7 states have call successors, (13) Word has length 141 [2023-11-29 04:26:15,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:15,055 INFO L225 Difference]: With dead ends: 2816 [2023-11-29 04:26:15,055 INFO L226 Difference]: Without dead ends: 2813 [2023-11-29 04:26:15,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=142, Invalid=560, Unknown=0, NotChecked=0, Total=702 [2023-11-29 04:26:15,056 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 886 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 1506 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 1564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:15,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 468 Invalid, 1564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1506 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-29 04:26:15,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2023-11-29 04:26:15,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 2771. [2023-11-29 04:26:15,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6524170994806233) internal successors, (4136), 2558 states have internal predecessors, (4136), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 04:26:15,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4556 transitions. [2023-11-29 04:26:15,320 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4556 transitions. Word has length 141 [2023-11-29 04:26:15,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:15,321 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4556 transitions. [2023-11-29 04:26:15,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-29 04:26:15,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4556 transitions. [2023-11-29 04:26:15,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 04:26:15,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:15,322 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:15,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2023-11-29 04:26:15,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:15,522 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:26:15,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:15,523 INFO L85 PathProgramCache]: Analyzing trace with hash -274239797, now seen corresponding path program 1 times [2023-11-29 04:26:15,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:15,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915318589] [2023-11-29 04:26:15,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:15,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:15,531 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:15,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1350035433] [2023-11-29 04:26:15,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:15,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:15,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:15,532 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:15,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 04:26:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:15,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 04:26:15,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:15,955 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-11-29 04:26:15,955 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:20,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:20,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915318589] [2023-11-29 04:26:20,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:20,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350035433] [2023-11-29 04:26:20,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350035433] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:20,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:20,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:26:20,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30208467] [2023-11-29 04:26:20,494 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:20,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:26:20,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:20,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:26:20,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=81, Unknown=1, NotChecked=0, Total=110 [2023-11-29 04:26:20,495 INFO L87 Difference]: Start difference. First operand 2771 states and 4556 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:26:21,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:21,143 INFO L93 Difference]: Finished difference Result 2851 states and 4613 transitions. [2023-11-29 04:26:21,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:26:21,144 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 142 [2023-11-29 04:26:21,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:21,149 INFO L225 Difference]: With dead ends: 2851 [2023-11-29 04:26:21,149 INFO L226 Difference]: Without dead ends: 2850 [2023-11-29 04:26:21,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=32, Invalid=99, Unknown=1, NotChecked=0, Total=132 [2023-11-29 04:26:21,151 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 91 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:21,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 796 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:26:21,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2023-11-29 04:26:21,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 2771. [2023-11-29 04:26:21,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.649620455453456) internal successors, (4129), 2558 states have internal predecessors, (4129), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 04:26:21,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4549 transitions. [2023-11-29 04:26:21,333 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4549 transitions. Word has length 142 [2023-11-29 04:26:21,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:21,333 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4549 transitions. [2023-11-29 04:26:21,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 04:26:21,334 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4549 transitions. [2023-11-29 04:26:21,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 04:26:21,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:21,335 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:21,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-29 04:26:21,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:21,535 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:26:21,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:21,536 INFO L85 PathProgramCache]: Analyzing trace with hash 88500997, now seen corresponding path program 1 times [2023-11-29 04:26:21,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:21,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654280807] [2023-11-29 04:26:21,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:21,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:21,547 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:21,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [422959139] [2023-11-29 04:26:21,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:21,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:21,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:21,548 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:21,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 04:26:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:21,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 04:26:21,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:22,849 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 18 proven. 31 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 04:26:22,849 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:35,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:35,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654280807] [2023-11-29 04:26:35,291 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:35,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422959139] [2023-11-29 04:26:35,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422959139] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:35,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:35,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:26:35,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657870322] [2023-11-29 04:26:35,291 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:35,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:26:35,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:35,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:26:35,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=322, Unknown=3, NotChecked=0, Total=380 [2023-11-29 04:26:35,292 INFO L87 Difference]: Start difference. First operand 2771 states and 4549 transitions. Second operand has 14 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:26:40,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:40,536 INFO L93 Difference]: Finished difference Result 2826 states and 4596 transitions. [2023-11-29 04:26:40,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:26:40,537 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 143 [2023-11-29 04:26:40,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:40,540 INFO L225 Difference]: With dead ends: 2826 [2023-11-29 04:26:40,540 INFO L226 Difference]: Without dead ends: 2825 [2023-11-29 04:26:40,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=133, Invalid=734, Unknown=3, NotChecked=0, Total=870 [2023-11-29 04:26:40,541 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 599 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 1688 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 1726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:40,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 585 Invalid, 1726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1688 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-29 04:26:40,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2825 states. [2023-11-29 04:26:40,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2825 to 2771. [2023-11-29 04:26:40,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.648421893727527) internal successors, (4126), 2558 states have internal predecessors, (4126), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 04:26:40,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4546 transitions. [2023-11-29 04:26:40,819 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4546 transitions. Word has length 143 [2023-11-29 04:26:40,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:40,819 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4546 transitions. [2023-11-29 04:26:40,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.25) internal successors, (87), 13 states have internal predecessors, (87), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:26:40,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4546 transitions. [2023-11-29 04:26:40,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-29 04:26:40,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:40,821 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:40,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 04:26:41,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-11-29 04:26:41,022 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:26:41,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:41,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1551436275, now seen corresponding path program 1 times [2023-11-29 04:26:41,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:41,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184389551] [2023-11-29 04:26:41,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:41,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:41,042 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:41,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [855580198] [2023-11-29 04:26:41,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:41,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:41,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:41,043 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:41,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 04:26:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:41,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 04:26:41,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:42,169 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 12 proven. 38 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 04:26:42,169 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:51,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:51,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184389551] [2023-11-29 04:26:51,421 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:51,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855580198] [2023-11-29 04:26:51,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855580198] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:26:51,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:26:51,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 04:26:51,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910764986] [2023-11-29 04:26:51,421 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:51,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:26:51,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:51,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:26:51,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=201, Unknown=2, NotChecked=0, Total=240 [2023-11-29 04:26:51,422 INFO L87 Difference]: Start difference. First operand 2771 states and 4546 transitions. Second operand has 12 states, 10 states have (on average 8.8) internal successors, (88), 12 states have internal predecessors, (88), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:26:54,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:54,862 INFO L93 Difference]: Finished difference Result 2825 states and 4593 transitions. [2023-11-29 04:26:54,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:26:54,863 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.8) internal successors, (88), 12 states have internal predecessors, (88), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 144 [2023-11-29 04:26:54,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:54,874 INFO L225 Difference]: With dead ends: 2825 [2023-11-29 04:26:54,874 INFO L226 Difference]: Without dead ends: 2824 [2023-11-29 04:26:54,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=102, Invalid=496, Unknown=2, NotChecked=0, Total=600 [2023-11-29 04:26:54,875 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 617 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:54,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 562 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 04:26:54,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2023-11-29 04:26:55,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 2771. [2023-11-29 04:26:55,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.647223332001598) internal successors, (4123), 2558 states have internal predecessors, (4123), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 04:26:55,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4543 transitions. [2023-11-29 04:26:55,056 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4543 transitions. Word has length 144 [2023-11-29 04:26:55,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:55,056 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4543 transitions. [2023-11-29 04:26:55,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.8) internal successors, (88), 12 states have internal predecessors, (88), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:26:55,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4543 transitions. [2023-11-29 04:26:55,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 04:26:55,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:55,057 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:55,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2023-11-29 04:26:55,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-11-29 04:26:55,258 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:26:55,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:55,258 INFO L85 PathProgramCache]: Analyzing trace with hash -849884153, now seen corresponding path program 1 times [2023-11-29 04:26:55,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:55,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029318340] [2023-11-29 04:26:55,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:55,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:55,267 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:55,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [673316707] [2023-11-29 04:26:55,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:55,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:55,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:55,269 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:55,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 04:26:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:26:55,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 04:26:55,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:00,620 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-11-29 04:27:00,621 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:00,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:00,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029318340] [2023-11-29 04:27:00,666 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:00,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673316707] [2023-11-29 04:27:00,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673316707] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:27:00,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:27:00,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 04:27:00,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325291175] [2023-11-29 04:27:00,667 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:00,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:27:00,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:00,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:27:00,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:27:00,668 INFO L87 Difference]: Start difference. First operand 2771 states and 4543 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:27:05,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:10,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:27:14,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:14,257 INFO L93 Difference]: Finished difference Result 2808 states and 4568 transitions. [2023-11-29 04:27:14,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:27:14,257 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 145 [2023-11-29 04:27:14,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:14,260 INFO L225 Difference]: With dead ends: 2808 [2023-11-29 04:27:14,261 INFO L226 Difference]: Without dead ends: 2807 [2023-11-29 04:27:14,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:27:14,262 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 425 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 23 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 1566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:14,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 486 Invalid, 1566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1541 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2023-11-29 04:27:14,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2807 states. [2023-11-29 04:27:14,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2807 to 2771. [2023-11-29 04:27:14,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6460247702756692) internal successors, (4120), 2558 states have internal predecessors, (4120), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 04:27:14,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4540 transitions. [2023-11-29 04:27:14,441 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4540 transitions. Word has length 145 [2023-11-29 04:27:14,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:14,442 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4540 transitions. [2023-11-29 04:27:14,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:27:14,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4540 transitions. [2023-11-29 04:27:14,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 04:27:14,443 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:14,443 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:14,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2023-11-29 04:27:14,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:14,644 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:27:14,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:14,644 INFO L85 PathProgramCache]: Analyzing trace with hash -576604849, now seen corresponding path program 1 times [2023-11-29 04:27:14,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:14,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817231801] [2023-11-29 04:27:14,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:14,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:14,651 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:14,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [937739731] [2023-11-29 04:27:14,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:14,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:14,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:14,653 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:14,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 04:27:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:14,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 04:27:14,722 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:15,235 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 12 proven. 31 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-11-29 04:27:15,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:15,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:15,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817231801] [2023-11-29 04:27:15,408 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:15,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937739731] [2023-11-29 04:27:15,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937739731] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:27:15,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:27:15,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 04:27:15,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980095053] [2023-11-29 04:27:15,408 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:15,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:27:15,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:15,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:27:15,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:27:15,409 INFO L87 Difference]: Start difference. First operand 2771 states and 4540 transitions. Second operand has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:27:16,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:16,423 INFO L93 Difference]: Finished difference Result 2807 states and 4565 transitions. [2023-11-29 04:27:16,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:27:16,424 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 146 [2023-11-29 04:27:16,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:16,427 INFO L225 Difference]: With dead ends: 2807 [2023-11-29 04:27:16,427 INFO L226 Difference]: Without dead ends: 2806 [2023-11-29 04:27:16,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:27:16,428 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 99 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:16,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 806 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:27:16,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2023-11-29 04:27:16,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2771. [2023-11-29 04:27:16,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6448262085497403) internal successors, (4117), 2558 states have internal predecessors, (4117), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 04:27:16,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4537 transitions. [2023-11-29 04:27:16,594 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4537 transitions. Word has length 146 [2023-11-29 04:27:16,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:16,595 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4537 transitions. [2023-11-29 04:27:16,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:27:16,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4537 transitions. [2023-11-29 04:27:16,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 04:27:16,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:16,596 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2023-11-29 04:27:16,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 04:27:16,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:16,796 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:27:16,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:16,797 INFO L85 PathProgramCache]: Analyzing trace with hash -2060720629, now seen corresponding path program 1 times [2023-11-29 04:27:16,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:16,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469325174] [2023-11-29 04:27:16,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:16,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:16,804 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:16,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [343871561] [2023-11-29 04:27:16,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:16,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:16,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:16,805 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:16,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 04:27:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:16,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-29 04:27:16,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:18,880 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-29 04:27:18,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:19,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:19,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469325174] [2023-11-29 04:27:19,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:19,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343871561] [2023-11-29 04:27:19,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343871561] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:27:19,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:27:19,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 04:27:19,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854554559] [2023-11-29 04:27:19,051 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:19,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:27:19,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:19,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:27:19,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:27:19,052 INFO L87 Difference]: Start difference. First operand 2771 states and 4537 transitions. Second operand has 17 states, 16 states have (on average 6.0) internal successors, (96), 16 states have internal predecessors, (96), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 04:27:21,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:21,799 INFO L93 Difference]: Finished difference Result 2808 states and 4564 transitions. [2023-11-29 04:27:21,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 04:27:21,800 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.0) internal successors, (96), 16 states have internal predecessors, (96), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 149 [2023-11-29 04:27:21,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:21,803 INFO L225 Difference]: With dead ends: 2808 [2023-11-29 04:27:21,803 INFO L226 Difference]: Without dead ends: 2804 [2023-11-29 04:27:21,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:27:21,804 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 387 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 2089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:21,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 383 Invalid, 2089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 04:27:21,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2023-11-29 04:27:21,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2771. [2023-11-29 04:27:21,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.6400319616460248) internal successors, (4105), 2558 states have internal predecessors, (4105), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 04:27:21,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4525 transitions. [2023-11-29 04:27:21,974 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4525 transitions. Word has length 149 [2023-11-29 04:27:21,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:21,974 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4525 transitions. [2023-11-29 04:27:21,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.0) internal successors, (96), 16 states have internal predecessors, (96), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 04:27:21,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4525 transitions. [2023-11-29 04:27:21,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 04:27:21,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:21,975 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2023-11-29 04:27:21,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-29 04:27:22,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:22,176 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:27:22,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:22,176 INFO L85 PathProgramCache]: Analyzing trace with hash 542170067, now seen corresponding path program 1 times [2023-11-29 04:27:22,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:22,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651215770] [2023-11-29 04:27:22,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:22,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:22,184 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:22,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1597324644] [2023-11-29 04:27:22,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:22,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:22,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:22,185 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:22,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 04:27:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:22,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:27:22,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:22,943 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-11-29 04:27:22,943 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:23,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:23,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651215770] [2023-11-29 04:27:23,034 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:23,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597324644] [2023-11-29 04:27:23,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597324644] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:27:23,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:27:23,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:27:23,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422010696] [2023-11-29 04:27:23,034 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:23,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:27:23,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:23,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:27:23,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:27:23,035 INFO L87 Difference]: Start difference. First operand 2771 states and 4525 transitions. Second operand has 11 states, 10 states have (on average 9.4) internal successors, (94), 11 states have internal predecessors, (94), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:27:25,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:25,243 INFO L93 Difference]: Finished difference Result 2802 states and 4550 transitions. [2023-11-29 04:27:25,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:27:25,243 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.4) internal successors, (94), 11 states have internal predecessors, (94), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 150 [2023-11-29 04:27:25,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:25,246 INFO L225 Difference]: With dead ends: 2802 [2023-11-29 04:27:25,246 INFO L226 Difference]: Without dead ends: 2801 [2023-11-29 04:27:25,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:27:25,247 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 436 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:25,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 564 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 04:27:25,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2023-11-29 04:27:25,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2771. [2023-11-29 04:27:25,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2503 states have (on average 1.638833399920096) internal successors, (4102), 2558 states have internal predecessors, (4102), 210 states have call successors, (210), 2 states have call predecessors, (210), 2 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2023-11-29 04:27:25,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 4522 transitions. [2023-11-29 04:27:25,423 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 4522 transitions. Word has length 150 [2023-11-29 04:27:25,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:25,424 INFO L495 AbstractCegarLoop]: Abstraction has 2771 states and 4522 transitions. [2023-11-29 04:27:25,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.4) internal successors, (94), 11 states have internal predecessors, (94), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:27:25,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 4522 transitions. [2023-11-29 04:27:25,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 04:27:25,424 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:25,425 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:27:25,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2023-11-29 04:27:25,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:25,625 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:27:25,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:25,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1840979369, now seen corresponding path program 1 times [2023-11-29 04:27:25,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:25,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508514436] [2023-11-29 04:27:25,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:25,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:25,633 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:25,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204012401] [2023-11-29 04:27:25,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:25,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:25,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:25,634 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:25,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 04:27:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:25,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:27:25,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:26,429 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2023-11-29 04:27:26,430 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:30,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:30,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508514436] [2023-11-29 04:27:30,650 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:30,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204012401] [2023-11-29 04:27:30,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204012401] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:27:30,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:27:30,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:27:30,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434797548] [2023-11-29 04:27:30,651 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:30,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:27:30,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:30,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:27:30,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=119, Unknown=1, NotChecked=0, Total=156 [2023-11-29 04:27:30,652 INFO L87 Difference]: Start difference. First operand 2771 states and 4522 transitions. Second operand has 11 states, 10 states have (on average 9.8) internal successors, (98), 11 states have internal predecessors, (98), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:27:33,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:33,094 INFO L93 Difference]: Finished difference Result 3032 states and 4848 transitions. [2023-11-29 04:27:33,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:27:33,094 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.8) internal successors, (98), 11 states have internal predecessors, (98), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 154 [2023-11-29 04:27:33,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:33,097 INFO L225 Difference]: With dead ends: 3032 [2023-11-29 04:27:33,097 INFO L226 Difference]: Without dead ends: 3029 [2023-11-29 04:27:33,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=114, Invalid=305, Unknown=1, NotChecked=0, Total=420 [2023-11-29 04:27:33,098 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 538 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:33,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 556 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 04:27:33,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3029 states. [2023-11-29 04:27:33,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3029 to 2963. [2023-11-29 04:27:33,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2963 states, 2679 states have (on average 1.631578947368421) internal successors, (4371), 2734 states have internal predecessors, (4371), 226 states have call successors, (226), 2 states have call predecessors, (226), 2 states have return successors, (226), 226 states have call predecessors, (226), 226 states have call successors, (226) [2023-11-29 04:27:33,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2963 states to 2963 states and 4823 transitions. [2023-11-29 04:27:33,294 INFO L78 Accepts]: Start accepts. Automaton has 2963 states and 4823 transitions. Word has length 154 [2023-11-29 04:27:33,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:33,295 INFO L495 AbstractCegarLoop]: Abstraction has 2963 states and 4823 transitions. [2023-11-29 04:27:33,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.8) internal successors, (98), 11 states have internal predecessors, (98), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:27:33,295 INFO L276 IsEmpty]: Start isEmpty. Operand 2963 states and 4823 transitions. [2023-11-29 04:27:33,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-29 04:27:33,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:33,296 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:27:33,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2023-11-29 04:27:33,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:33,496 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:27:33,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:33,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1175308507, now seen corresponding path program 1 times [2023-11-29 04:27:33,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:33,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440843095] [2023-11-29 04:27:33,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:33,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:33,506 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:33,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1996109763] [2023-11-29 04:27:33,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:33,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:33,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:33,508 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:33,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 04:27:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:33,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 04:27:33,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:39,147 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 30 proven. 55 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-29 04:27:39,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:40,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:40,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440843095] [2023-11-29 04:27:40,406 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:40,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996109763] [2023-11-29 04:27:40,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996109763] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:27:40,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:27:40,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:27:40,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292334015] [2023-11-29 04:27:40,406 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:40,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:27:40,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:40,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:27:40,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:27:40,407 INFO L87 Difference]: Start difference. First operand 2963 states and 4823 transitions. Second operand has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 14 states have internal predecessors, (105), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:27:44,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:44,156 INFO L93 Difference]: Finished difference Result 2978 states and 4828 transitions. [2023-11-29 04:27:44,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:27:44,156 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 14 states have internal predecessors, (105), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 158 [2023-11-29 04:27:44,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:44,160 INFO L225 Difference]: With dead ends: 2978 [2023-11-29 04:27:44,160 INFO L226 Difference]: Without dead ends: 2976 [2023-11-29 04:27:44,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:27:44,162 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 334 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:44,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 613 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-29 04:27:44,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2023-11-29 04:27:44,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 2963. [2023-11-29 04:27:44,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2963 states, 2679 states have (on average 1.6293393057110863) internal successors, (4365), 2734 states have internal predecessors, (4365), 226 states have call successors, (226), 2 states have call predecessors, (226), 2 states have return successors, (226), 226 states have call predecessors, (226), 226 states have call successors, (226) [2023-11-29 04:27:44,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2963 states to 2963 states and 4817 transitions. [2023-11-29 04:27:44,401 INFO L78 Accepts]: Start accepts. Automaton has 2963 states and 4817 transitions. Word has length 158 [2023-11-29 04:27:44,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:44,402 INFO L495 AbstractCegarLoop]: Abstraction has 2963 states and 4817 transitions. [2023-11-29 04:27:44,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 14 states have internal predecessors, (105), 5 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 04:27:44,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2963 states and 4817 transitions. [2023-11-29 04:27:44,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-29 04:27:44,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:44,403 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 04:27:44,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2023-11-29 04:27:44,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:44,604 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:27:44,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:44,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1177926609, now seen corresponding path program 1 times [2023-11-29 04:27:44,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:44,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814075150] [2023-11-29 04:27:44,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:44,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:44,612 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:44,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1265472815] [2023-11-29 04:27:44,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:44,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:44,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:44,614 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:44,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 04:27:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:44,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:27:44,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:44,996 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 04:27:44,996 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:45,188 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 04:27:45,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:45,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814075150] [2023-11-29 04:27:45,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:45,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265472815] [2023-11-29 04:27:45,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265472815] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:45,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:45,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 04:27:45,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963214393] [2023-11-29 04:27:45,189 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:45,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:27:45,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:45,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:27:45,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:27:45,190 INFO L87 Difference]: Start difference. First operand 2963 states and 4817 transitions. Second operand has 12 states, 11 states have (on average 17.09090909090909) internal successors, (188), 12 states have internal predecessors, (188), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-29 04:27:46,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:46,367 INFO L93 Difference]: Finished difference Result 3060 states and 4922 transitions. [2023-11-29 04:27:46,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:27:46,368 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 17.09090909090909) internal successors, (188), 12 states have internal predecessors, (188), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 161 [2023-11-29 04:27:46,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:46,371 INFO L225 Difference]: With dead ends: 3060 [2023-11-29 04:27:46,371 INFO L226 Difference]: Without dead ends: 3059 [2023-11-29 04:27:46,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:27:46,371 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 1172 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:46,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 458 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:27:46,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2023-11-29 04:27:46,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 3053. [2023-11-29 04:27:46,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 2761 states have (on average 1.6120970662803331) internal successors, (4451), 2816 states have internal predecessors, (4451), 234 states have call successors, (234), 2 states have call predecessors, (234), 2 states have return successors, (234), 234 states have call predecessors, (234), 234 states have call successors, (234) [2023-11-29 04:27:46,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 4919 transitions. [2023-11-29 04:27:46,579 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 4919 transitions. Word has length 161 [2023-11-29 04:27:46,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:46,580 INFO L495 AbstractCegarLoop]: Abstraction has 3053 states and 4919 transitions. [2023-11-29 04:27:46,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 17.09090909090909) internal successors, (188), 12 states have internal predecessors, (188), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-29 04:27:46,580 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 4919 transitions. [2023-11-29 04:27:46,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-29 04:27:46,581 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:46,581 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 04:27:46,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2023-11-29 04:27:46,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:46,781 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:27:46,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:46,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1978679969, now seen corresponding path program 1 times [2023-11-29 04:27:46,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:46,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636489943] [2023-11-29 04:27:46,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:46,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:46,790 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:46,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [163740484] [2023-11-29 04:27:46,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:46,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:46,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:46,791 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:46,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 04:27:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:46,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:27:46,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:47,102 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 04:27:47,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:47,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:47,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636489943] [2023-11-29 04:27:47,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:47,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163740484] [2023-11-29 04:27:47,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163740484] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:27:47,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:27:47,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 04:27:47,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24118647] [2023-11-29 04:27:47,259 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:47,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:27:47,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:47,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:27:47,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:27:47,260 INFO L87 Difference]: Start difference. First operand 3053 states and 4919 transitions. Second operand has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 04:27:47,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:47,604 INFO L93 Difference]: Finished difference Result 3058 states and 4919 transitions. [2023-11-29 04:27:47,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:27:47,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 166 [2023-11-29 04:27:47,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:47,607 INFO L225 Difference]: With dead ends: 3058 [2023-11-29 04:27:47,607 INFO L226 Difference]: Without dead ends: 3057 [2023-11-29 04:27:47,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:27:47,608 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 84 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:47,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 266 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:27:47,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3057 states. [2023-11-29 04:27:47,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3057 to 3053. [2023-11-29 04:27:47,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 2761 states have (on average 1.6117348786671495) internal successors, (4450), 2816 states have internal predecessors, (4450), 234 states have call successors, (234), 2 states have call predecessors, (234), 2 states have return successors, (234), 234 states have call predecessors, (234), 234 states have call successors, (234) [2023-11-29 04:27:47,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 4918 transitions. [2023-11-29 04:27:47,827 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 4918 transitions. Word has length 166 [2023-11-29 04:27:47,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:47,828 INFO L495 AbstractCegarLoop]: Abstraction has 3053 states and 4918 transitions. [2023-11-29 04:27:47,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 25.5) internal successors, (102), 5 states have internal predecessors, (102), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 04:27:47,828 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 4918 transitions. [2023-11-29 04:27:47,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-29 04:27:47,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:47,829 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:27:47,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2023-11-29 04:27:48,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2023-11-29 04:27:48,029 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:27:48,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:48,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1774756706, now seen corresponding path program 1 times [2023-11-29 04:27:48,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:48,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396849548] [2023-11-29 04:27:48,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:48,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:48,040 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:48,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [970693272] [2023-11-29 04:27:48,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:48,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:48,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:48,041 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:48,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 04:27:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:48,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:27:48,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:48,431 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 04:27:48,431 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:48,630 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 04:27:48,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:48,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396849548] [2023-11-29 04:27:48,630 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:48,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970693272] [2023-11-29 04:27:48,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970693272] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:48,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:48,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 04:27:48,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787989327] [2023-11-29 04:27:48,631 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:48,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:27:48,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:48,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:27:48,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:27:48,632 INFO L87 Difference]: Start difference. First operand 3053 states and 4918 transitions. Second operand has 14 states, 13 states have (on average 15.538461538461538) internal successors, (202), 14 states have internal predecessors, (202), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-29 04:27:54,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:54,982 INFO L93 Difference]: Finished difference Result 4020 states and 6044 transitions. [2023-11-29 04:27:54,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-29 04:27:54,983 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 15.538461538461538) internal successors, (202), 14 states have internal predecessors, (202), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 168 [2023-11-29 04:27:54,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:54,986 INFO L225 Difference]: With dead ends: 4020 [2023-11-29 04:27:54,987 INFO L226 Difference]: Without dead ends: 4019 [2023-11-29 04:27:54,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=537, Invalid=1103, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 04:27:54,987 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 3050 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3050 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:54,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3050 Valid, 635 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-11-29 04:27:54,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4019 states. [2023-11-29 04:27:55,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4019 to 3472. [2023-11-29 04:27:55,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3472 states, 3146 states have (on average 1.6166560712015257) internal successors, (5086), 3201 states have internal predecessors, (5086), 268 states have call successors, (268), 2 states have call predecessors, (268), 2 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2023-11-29 04:27:55,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3472 states to 3472 states and 5622 transitions. [2023-11-29 04:27:55,280 INFO L78 Accepts]: Start accepts. Automaton has 3472 states and 5622 transitions. Word has length 168 [2023-11-29 04:27:55,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:55,280 INFO L495 AbstractCegarLoop]: Abstraction has 3472 states and 5622 transitions. [2023-11-29 04:27:55,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 15.538461538461538) internal successors, (202), 14 states have internal predecessors, (202), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-29 04:27:55,281 INFO L276 IsEmpty]: Start isEmpty. Operand 3472 states and 5622 transitions. [2023-11-29 04:27:55,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-29 04:27:55,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:55,282 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 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] [2023-11-29 04:27:55,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2023-11-29 04:27:55,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2023-11-29 04:27:55,482 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:27:55,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:55,483 INFO L85 PathProgramCache]: Analyzing trace with hash 744703354, now seen corresponding path program 2 times [2023-11-29 04:27:55,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:55,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630329340] [2023-11-29 04:27:55,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:55,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:55,492 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:55,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1627267378] [2023-11-29 04:27:55,492 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:27:55,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:55,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:55,493 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:55,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-29 04:27:55,564 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:27:55,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:27:55,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 04:27:55,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 12 proven. 80 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 04:27:56,190 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:56,652 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 62 proven. 24 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-11-29 04:27:56,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:56,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630329340] [2023-11-29 04:27:56,653 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:56,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627267378] [2023-11-29 04:27:56,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627267378] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:56,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:56,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 21 [2023-11-29 04:27:56,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373382533] [2023-11-29 04:27:56,653 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:56,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 04:27:56,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:56,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 04:27:56,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:27:56,655 INFO L87 Difference]: Start difference. First operand 3472 states and 5622 transitions. Second operand has 22 states, 21 states have (on average 9.80952380952381) internal successors, (206), 22 states have internal predecessors, (206), 10 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (28), 8 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-29 04:27:59,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:59,229 INFO L93 Difference]: Finished difference Result 3536 states and 5683 transitions. [2023-11-29 04:27:59,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-29 04:27:59,230 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 9.80952380952381) internal successors, (206), 22 states have internal predecessors, (206), 10 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (28), 8 states have call predecessors, (28), 10 states have call successors, (28) Word has length 168 [2023-11-29 04:27:59,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:59,237 INFO L225 Difference]: With dead ends: 3536 [2023-11-29 04:27:59,237 INFO L226 Difference]: Without dead ends: 3535 [2023-11-29 04:27:59,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 313 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=353, Invalid=1369, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 04:27:59,238 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 721 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 2352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:59,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 1225 Invalid, 2352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2286 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 04:27:59,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3535 states. [2023-11-29 04:27:59,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3535 to 3472. [2023-11-29 04:27:59,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3472 states, 3146 states have (on average 1.6080737444373807) internal successors, (5059), 3201 states have internal predecessors, (5059), 268 states have call successors, (268), 2 states have call predecessors, (268), 2 states have return successors, (268), 268 states have call predecessors, (268), 268 states have call successors, (268) [2023-11-29 04:27:59,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3472 states to 3472 states and 5595 transitions. [2023-11-29 04:27:59,579 INFO L78 Accepts]: Start accepts. Automaton has 3472 states and 5595 transitions. Word has length 168 [2023-11-29 04:27:59,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:59,579 INFO L495 AbstractCegarLoop]: Abstraction has 3472 states and 5595 transitions. [2023-11-29 04:27:59,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 9.80952380952381) internal successors, (206), 22 states have internal predecessors, (206), 10 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (28), 8 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-29 04:27:59,579 INFO L276 IsEmpty]: Start isEmpty. Operand 3472 states and 5595 transitions. [2023-11-29 04:27:59,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-29 04:27:59,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:59,580 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:27:59,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2023-11-29 04:27:59,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:59,781 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:27:59,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:59,781 INFO L85 PathProgramCache]: Analyzing trace with hash -440712098, now seen corresponding path program 1 times [2023-11-29 04:27:59,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:59,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011084738] [2023-11-29 04:27:59,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:59,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:59,789 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:59,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1982540264] [2023-11-29 04:27:59,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:59,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:59,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:59,790 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:59,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2023-11-29 04:27:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:59,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:27:59,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:59,934 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 04:27:59,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:27:59,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:59,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011084738] [2023-11-29 04:27:59,934 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:59,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982540264] [2023-11-29 04:27:59,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982540264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:59,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:59,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:27:59,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205070249] [2023-11-29 04:27:59,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:59,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:27:59,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:59,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:27:59,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:27:59,936 INFO L87 Difference]: Start difference. First operand 3472 states and 5595 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:28:00,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:00,238 INFO L93 Difference]: Finished difference Result 4083 states and 6532 transitions. [2023-11-29 04:28:00,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:28:00,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 170 [2023-11-29 04:28:00,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:00,241 INFO L225 Difference]: With dead ends: 4083 [2023-11-29 04:28:00,241 INFO L226 Difference]: Without dead ends: 1221 [2023-11-29 04:28:00,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 167 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 04:28:00,246 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 207 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:00,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 550 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:28:00,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2023-11-29 04:28:00,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1192. [2023-11-29 04:28:00,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 1039 states have (on average 1.4562078922040425) internal successors, (1513), 1093 states have internal predecessors, (1513), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2023-11-29 04:28:00,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1705 transitions. [2023-11-29 04:28:00,411 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1705 transitions. Word has length 170 [2023-11-29 04:28:00,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:00,411 INFO L495 AbstractCegarLoop]: Abstraction has 1192 states and 1705 transitions. [2023-11-29 04:28:00,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:28:00,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1705 transitions. [2023-11-29 04:28:00,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-29 04:28:00,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:00,412 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:28:00,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2023-11-29 04:28:00,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2023-11-29 04:28:00,612 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:28:00,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:00,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1138355774, now seen corresponding path program 1 times [2023-11-29 04:28:00,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:00,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946219879] [2023-11-29 04:28:00,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:00,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:00,620 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:00,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [987034907] [2023-11-29 04:28:00,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:00,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:00,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:00,621 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:00,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2023-11-29 04:28:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:00,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:28:00,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:00,947 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-29 04:28:00,947 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:28:01,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:01,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946219879] [2023-11-29 04:28:01,005 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:01,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987034907] [2023-11-29 04:28:01,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987034907] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:28:01,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:28:01,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 04:28:01,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994086958] [2023-11-29 04:28:01,005 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:28:01,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:28:01,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:01,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:28:01,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:28:01,006 INFO L87 Difference]: Start difference. First operand 1192 states and 1705 transitions. Second operand has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:28:01,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:01,972 INFO L93 Difference]: Finished difference Result 1338 states and 1814 transitions. [2023-11-29 04:28:01,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:28:01,973 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 172 [2023-11-29 04:28:01,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:01,975 INFO L225 Difference]: With dead ends: 1338 [2023-11-29 04:28:01,975 INFO L226 Difference]: Without dead ends: 1336 [2023-11-29 04:28:01,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:28:01,975 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 565 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:01,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 827 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:28:01,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2023-11-29 04:28:02,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1192. [2023-11-29 04:28:02,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 1039 states have (on average 1.453320500481232) internal successors, (1510), 1093 states have internal predecessors, (1510), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2023-11-29 04:28:02,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1702 transitions. [2023-11-29 04:28:02,126 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1702 transitions. Word has length 172 [2023-11-29 04:28:02,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:02,126 INFO L495 AbstractCegarLoop]: Abstraction has 1192 states and 1702 transitions. [2023-11-29 04:28:02,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.333333333333334) internal successors, (111), 10 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:28:02,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1702 transitions. [2023-11-29 04:28:02,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-29 04:28:02,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:02,127 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:28:02,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2023-11-29 04:28:02,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2023-11-29 04:28:02,328 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:28:02,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:02,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1472200934, now seen corresponding path program 1 times [2023-11-29 04:28:02,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:02,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334501292] [2023-11-29 04:28:02,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:02,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:02,336 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:02,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [401225681] [2023-11-29 04:28:02,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:02,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:02,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:02,337 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:02,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-29 04:28:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:02,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 04:28:02,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:03,283 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 3 proven. 56 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-29 04:28:03,283 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:28:07,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:07,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334501292] [2023-11-29 04:28:07,667 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:07,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401225681] [2023-11-29 04:28:07,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401225681] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:28:07,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:28:07,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:28:07,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762763071] [2023-11-29 04:28:07,668 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:28:07,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:28:07,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:07,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:28:07,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=247, Unknown=1, NotChecked=0, Total=306 [2023-11-29 04:28:07,669 INFO L87 Difference]: Start difference. First operand 1192 states and 1702 transitions. Second operand has 13 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:28:10,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:10,235 INFO L93 Difference]: Finished difference Result 1289 states and 1796 transitions. [2023-11-29 04:28:10,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:28:10,235 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 172 [2023-11-29 04:28:10,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:10,238 INFO L225 Difference]: With dead ends: 1289 [2023-11-29 04:28:10,238 INFO L226 Difference]: Without dead ends: 1285 [2023-11-29 04:28:10,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=137, Invalid=564, Unknown=1, NotChecked=0, Total=702 [2023-11-29 04:28:10,238 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 484 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:10,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 633 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 04:28:10,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2023-11-29 04:28:10,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1240. [2023-11-29 04:28:10,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1240 states, 1083 states have (on average 1.4478301015697137) internal successors, (1568), 1137 states have internal predecessors, (1568), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-11-29 04:28:10,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 1768 transitions. [2023-11-29 04:28:10,387 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 1768 transitions. Word has length 172 [2023-11-29 04:28:10,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:10,388 INFO L495 AbstractCegarLoop]: Abstraction has 1240 states and 1768 transitions. [2023-11-29 04:28:10,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.25) internal successors, (111), 12 states have internal predecessors, (111), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:28:10,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 1768 transitions. [2023-11-29 04:28:10,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-29 04:28:10,389 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:10,389 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:28:10,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2023-11-29 04:28:10,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:10,589 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:28:10,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:10,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1606411113, now seen corresponding path program 1 times [2023-11-29 04:28:10,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:10,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645406186] [2023-11-29 04:28:10,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:10,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:10,602 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:10,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1594958975] [2023-11-29 04:28:10,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:10,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:10,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:10,603 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:10,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2023-11-29 04:28:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:10,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:28:10,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:11,911 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 3 proven. 56 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-29 04:28:11,911 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:28:12,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:12,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645406186] [2023-11-29 04:28:12,064 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:12,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594958975] [2023-11-29 04:28:12,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594958975] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:28:12,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:28:12,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:28:12,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637726293] [2023-11-29 04:28:12,064 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:28:12,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:28:12,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:12,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:28:12,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:28:12,065 INFO L87 Difference]: Start difference. First operand 1240 states and 1768 transitions. Second operand has 13 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:28:14,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:14,056 INFO L93 Difference]: Finished difference Result 1307 states and 1818 transitions. [2023-11-29 04:28:14,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:28:14,057 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 173 [2023-11-29 04:28:14,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:14,059 INFO L225 Difference]: With dead ends: 1307 [2023-11-29 04:28:14,059 INFO L226 Difference]: Without dead ends: 1305 [2023-11-29 04:28:14,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:28:14,059 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 285 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:14,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 647 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 04:28:14,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2023-11-29 04:28:14,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1241. [2023-11-29 04:28:14,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1084 states have (on average 1.4464944649446494) internal successors, (1568), 1138 states have internal predecessors, (1568), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-11-29 04:28:14,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1768 transitions. [2023-11-29 04:28:14,202 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1768 transitions. Word has length 173 [2023-11-29 04:28:14,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:14,203 INFO L495 AbstractCegarLoop]: Abstraction has 1241 states and 1768 transitions. [2023-11-29 04:28:14,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:28:14,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1768 transitions. [2023-11-29 04:28:14,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-29 04:28:14,203 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:14,204 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 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, 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 04:28:14,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0 [2023-11-29 04:28:14,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:14,404 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:28:14,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:14,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1739200906, now seen corresponding path program 1 times [2023-11-29 04:28:14,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:14,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958909168] [2023-11-29 04:28:14,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:14,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:14,412 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:14,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [65852516] [2023-11-29 04:28:14,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:14,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:14,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:14,413 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:14,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2023-11-29 04:28:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:14,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:28:14,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:14,561 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 04:28:14,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:28:14,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:14,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958909168] [2023-11-29 04:28:14,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:14,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65852516] [2023-11-29 04:28:14,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65852516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:28:14,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:28:14,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:28:14,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173091879] [2023-11-29 04:28:14,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:28:14,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:28:14,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:14,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:28:14,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:28:14,563 INFO L87 Difference]: Start difference. First operand 1241 states and 1768 transitions. Second operand has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:28:15,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:15,726 INFO L93 Difference]: Finished difference Result 1271 states and 1774 transitions. [2023-11-29 04:28:15,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:28:15,727 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 174 [2023-11-29 04:28:15,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:15,728 INFO L225 Difference]: With dead ends: 1271 [2023-11-29 04:28:15,728 INFO L226 Difference]: Without dead ends: 1270 [2023-11-29 04:28:15,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:28:15,729 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 428 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:15,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 1005 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:28:15,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2023-11-29 04:28:15,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1240. [2023-11-29 04:28:15,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1240 states, 1084 states have (on average 1.4391143911439115) internal successors, (1560), 1137 states have internal predecessors, (1560), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-11-29 04:28:15,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 1760 transitions. [2023-11-29 04:28:15,855 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 1760 transitions. Word has length 174 [2023-11-29 04:28:15,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:15,855 INFO L495 AbstractCegarLoop]: Abstraction has 1240 states and 1760 transitions. [2023-11-29 04:28:15,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.714285714285714) internal successors, (110), 8 states have internal predecessors, (110), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:28:15,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 1760 transitions. [2023-11-29 04:28:15,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-29 04:28:15,856 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:15,856 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:28:15,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2023-11-29 04:28:16,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:16,057 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:28:16,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:16,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1740863240, now seen corresponding path program 1 times [2023-11-29 04:28:16,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:16,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047278109] [2023-11-29 04:28:16,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:16,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:16,067 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:16,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884606889] [2023-11-29 04:28:16,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:16,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:16,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:16,068 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:16,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2023-11-29 04:28:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:16,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:28:16,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:17,291 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 45 proven. 14 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-29 04:28:17,292 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:28:17,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:17,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047278109] [2023-11-29 04:28:17,690 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:17,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884606889] [2023-11-29 04:28:17,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884606889] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:28:17,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:28:17,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:28:17,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205364102] [2023-11-29 04:28:17,691 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:28:17,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:28:17,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:17,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:28:17,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:28:17,692 INFO L87 Difference]: Start difference. First operand 1240 states and 1760 transitions. Second operand has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:28:20,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:20,439 INFO L93 Difference]: Finished difference Result 1301 states and 1794 transitions. [2023-11-29 04:28:20,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:28:20,439 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 174 [2023-11-29 04:28:20,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:20,441 INFO L225 Difference]: With dead ends: 1301 [2023-11-29 04:28:20,441 INFO L226 Difference]: Without dead ends: 1299 [2023-11-29 04:28:20,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:28:20,442 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 281 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 1547 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:20,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 684 Invalid, 1556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1547 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 04:28:20,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2023-11-29 04:28:20,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1240. [2023-11-29 04:28:20,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1240 states, 1084 states have (on average 1.4363468634686347) internal successors, (1557), 1137 states have internal predecessors, (1557), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-11-29 04:28:20,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 1757 transitions. [2023-11-29 04:28:20,567 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 1757 transitions. Word has length 174 [2023-11-29 04:28:20,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:20,568 INFO L495 AbstractCegarLoop]: Abstraction has 1240 states and 1757 transitions. [2023-11-29 04:28:20,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 5 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:28:20,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 1757 transitions. [2023-11-29 04:28:20,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-29 04:28:20,569 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:20,569 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2023-11-29 04:28:20,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2023-11-29 04:28:20,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:20,770 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:28:20,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:20,770 INFO L85 PathProgramCache]: Analyzing trace with hash -2067665622, now seen corresponding path program 1 times [2023-11-29 04:28:20,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:20,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375557811] [2023-11-29 04:28:20,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:20,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:20,781 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:20,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018744447] [2023-11-29 04:28:20,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:20,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:20,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:20,782 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:20,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2023-11-29 04:28:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:20,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:28:20,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:21,935 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-29 04:28:21,936 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:28:22,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:22,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375557811] [2023-11-29 04:28:22,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:22,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018744447] [2023-11-29 04:28:22,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018744447] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:28:22,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:28:22,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:28:22,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976393002] [2023-11-29 04:28:22,676 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:28:22,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:28:22,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:22,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:28:22,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:28:22,676 INFO L87 Difference]: Start difference. First operand 1240 states and 1757 transitions. Second operand has 11 states, 10 states have (on average 11.2) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 04:28:24,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:24,541 INFO L93 Difference]: Finished difference Result 1303 states and 1791 transitions. [2023-11-29 04:28:24,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:28:24,541 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 176 [2023-11-29 04:28:24,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:24,544 INFO L225 Difference]: With dead ends: 1303 [2023-11-29 04:28:24,544 INFO L226 Difference]: Without dead ends: 1299 [2023-11-29 04:28:24,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:28:24,544 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 196 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:24,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 478 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 04:28:24,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2023-11-29 04:28:24,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1240. [2023-11-29 04:28:24,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1240 states, 1084 states have (on average 1.4280442804428044) internal successors, (1548), 1137 states have internal predecessors, (1548), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-11-29 04:28:24,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 1748 transitions. [2023-11-29 04:28:24,676 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 1748 transitions. Word has length 176 [2023-11-29 04:28:24,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:24,676 INFO L495 AbstractCegarLoop]: Abstraction has 1240 states and 1748 transitions. [2023-11-29 04:28:24,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 04:28:24,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 1748 transitions. [2023-11-29 04:28:24,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-29 04:28:24,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:24,678 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 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, 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 04:28:24,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2023-11-29 04:28:24,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:24,878 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:28:24,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:24,878 INFO L85 PathProgramCache]: Analyzing trace with hash -2058136182, now seen corresponding path program 1 times [2023-11-29 04:28:24,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:24,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551181798] [2023-11-29 04:28:24,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:24,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:24,887 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:24,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1982944825] [2023-11-29 04:28:24,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:24,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:24,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:24,888 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:24,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2023-11-29 04:28:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:24,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:28:24,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:25,699 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 45 proven. 28 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-29 04:28:25,699 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:28:25,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:25,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551181798] [2023-11-29 04:28:25,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:25,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982944825] [2023-11-29 04:28:25,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982944825] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:28:25,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:28:25,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 04:28:25,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684366117] [2023-11-29 04:28:25,801 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:28:25,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:28:25,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:25,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:28:25,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:28:25,802 INFO L87 Difference]: Start difference. First operand 1240 states and 1748 transitions. Second operand has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 04:28:27,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:27,245 INFO L93 Difference]: Finished difference Result 1284 states and 1766 transitions. [2023-11-29 04:28:27,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:28:27,246 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 181 [2023-11-29 04:28:27,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:27,247 INFO L225 Difference]: With dead ends: 1284 [2023-11-29 04:28:27,247 INFO L226 Difference]: Without dead ends: 1282 [2023-11-29 04:28:27,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:28:27,248 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 222 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:27,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 815 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 04:28:27,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2023-11-29 04:28:27,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1240. [2023-11-29 04:28:27,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1240 states, 1084 states have (on average 1.4252767527675276) internal successors, (1545), 1137 states have internal predecessors, (1545), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-11-29 04:28:27,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 1745 transitions. [2023-11-29 04:28:27,383 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 1745 transitions. Word has length 181 [2023-11-29 04:28:27,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:27,384 INFO L495 AbstractCegarLoop]: Abstraction has 1240 states and 1745 transitions. [2023-11-29 04:28:27,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 04:28:27,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 1745 transitions. [2023-11-29 04:28:27,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-11-29 04:28:27,384 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:27,385 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:28:27,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0 [2023-11-29 04:28:27,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2023-11-29 04:28:27,585 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:28:27,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:27,585 INFO L85 PathProgramCache]: Analyzing trace with hash 622287882, now seen corresponding path program 1 times [2023-11-29 04:28:27,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:27,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061694413] [2023-11-29 04:28:27,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:27,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:27,595 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:27,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116263556] [2023-11-29 04:28:27,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:27,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:27,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:27,596 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:27,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2023-11-29 04:28:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:27,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:28:27,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:28,399 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 45 proven. 30 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-29 04:28:28,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:28:28,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:28,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061694413] [2023-11-29 04:28:28,626 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:28,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116263556] [2023-11-29 04:28:28,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116263556] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:28:28,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:28:28,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 04:28:28,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475449969] [2023-11-29 04:28:28,626 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:28:28,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:28:28,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:28,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:28:28,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:28:28,627 INFO L87 Difference]: Start difference. First operand 1240 states and 1745 transitions. Second operand has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 04:28:30,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:30,199 INFO L93 Difference]: Finished difference Result 1284 states and 1763 transitions. [2023-11-29 04:28:30,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:28:30,200 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 182 [2023-11-29 04:28:30,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:30,202 INFO L225 Difference]: With dead ends: 1284 [2023-11-29 04:28:30,202 INFO L226 Difference]: Without dead ends: 1282 [2023-11-29 04:28:30,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:28:30,202 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 260 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:30,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 687 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 04:28:30,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2023-11-29 04:28:30,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1240. [2023-11-29 04:28:30,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1240 states, 1084 states have (on average 1.4225092250922509) internal successors, (1542), 1137 states have internal predecessors, (1542), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-11-29 04:28:30,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 1742 transitions. [2023-11-29 04:28:30,360 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 1742 transitions. Word has length 182 [2023-11-29 04:28:30,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:30,360 INFO L495 AbstractCegarLoop]: Abstraction has 1240 states and 1742 transitions. [2023-11-29 04:28:30,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 04:28:30,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 1742 transitions. [2023-11-29 04:28:30,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-29 04:28:30,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:30,362 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:28:30,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2023-11-29 04:28:30,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2023-11-29 04:28:30,562 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:28:30,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:30,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1499528590, now seen corresponding path program 1 times [2023-11-29 04:28:30,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:30,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420857312] [2023-11-29 04:28:30,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:30,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:30,572 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:30,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [209697871] [2023-11-29 04:28:30,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:30,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:30,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:30,574 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:30,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2023-11-29 04:28:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:30,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 04:28:30,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:32,668 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 60 proven. 30 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 04:28:32,668 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:28:33,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:33,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420857312] [2023-11-29 04:28:33,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:33,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209697871] [2023-11-29 04:28:33,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209697871] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:28:33,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:28:33,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:28:33,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881543525] [2023-11-29 04:28:33,789 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:28:33,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:28:33,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:33,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:28:33,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:28:33,790 INFO L87 Difference]: Start difference. First operand 1240 states and 1742 transitions. Second operand has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 04:28:44,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:44,219 INFO L93 Difference]: Finished difference Result 1272 states and 1746 transitions. [2023-11-29 04:28:44,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:28:44,219 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 185 [2023-11-29 04:28:44,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:44,221 INFO L225 Difference]: With dead ends: 1272 [2023-11-29 04:28:44,221 INFO L226 Difference]: Without dead ends: 1258 [2023-11-29 04:28:44,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2023-11-29 04:28:44,223 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 112 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 1695 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 1699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:44,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 800 Invalid, 1699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1695 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2023-11-29 04:28:44,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2023-11-29 04:28:44,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1228. [2023-11-29 04:28:44,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 1073 states have (on average 1.4203168685927308) internal successors, (1524), 1126 states have internal predecessors, (1524), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 04:28:44,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1722 transitions. [2023-11-29 04:28:44,358 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1722 transitions. Word has length 185 [2023-11-29 04:28:44,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:44,358 INFO L495 AbstractCegarLoop]: Abstraction has 1228 states and 1722 transitions. [2023-11-29 04:28:44,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 11 states have internal predecessors, (119), 5 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 04:28:44,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1722 transitions. [2023-11-29 04:28:44,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-11-29 04:28:44,359 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:44,360 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:28:44,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2023-11-29 04:28:44,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2023-11-29 04:28:44,560 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:28:44,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:44,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1249517856, now seen corresponding path program 1 times [2023-11-29 04:28:44,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:44,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428957799] [2023-11-29 04:28:44,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:44,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:44,570 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:44,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1592557685] [2023-11-29 04:28:44,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:44,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:44,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:44,571 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:44,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2023-11-29 04:28:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:44,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:28:44,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:48,406 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 44 refuted. 42 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-29 04:28:48,406 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:29:00,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:29:00,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428957799] [2023-11-29 04:29:00,874 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:29:00,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592557685] [2023-11-29 04:29:00,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592557685] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:29:00,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:29:00,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 04:29:00,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624144742] [2023-11-29 04:29:00,875 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:29:00,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:29:00,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:29:00,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:29:00,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=138, Unknown=4, NotChecked=0, Total=182 [2023-11-29 04:29:00,876 INFO L87 Difference]: Start difference. First operand 1228 states and 1722 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 04:29:05,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:29:11,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:29:15,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:29:15,940 INFO L93 Difference]: Finished difference Result 1268 states and 1740 transitions. [2023-11-29 04:29:15,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:29:15,940 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 203 [2023-11-29 04:29:15,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:29:15,942 INFO L225 Difference]: With dead ends: 1268 [2023-11-29 04:29:15,942 INFO L226 Difference]: Without dead ends: 1267 [2023-11-29 04:29:15,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=96, Invalid=320, Unknown=4, NotChecked=0, Total=420 [2023-11-29 04:29:15,942 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 144 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:29:15,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 748 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1330 Invalid, 2 Unknown, 0 Unchecked, 14.5s Time] [2023-11-29 04:29:15,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2023-11-29 04:29:16,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1228. [2023-11-29 04:29:16,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 1073 states have (on average 1.4156570363466916) internal successors, (1519), 1126 states have internal predecessors, (1519), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 04:29:16,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1717 transitions. [2023-11-29 04:29:16,075 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1717 transitions. Word has length 203 [2023-11-29 04:29:16,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:29:16,075 INFO L495 AbstractCegarLoop]: Abstraction has 1228 states and 1717 transitions. [2023-11-29 04:29:16,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 04:29:16,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1717 transitions. [2023-11-29 04:29:16,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-11-29 04:29:16,076 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:29:16,076 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:16,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2023-11-29 04:29:16,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:16,277 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:29:16,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:29:16,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1804186786, now seen corresponding path program 1 times [2023-11-29 04:29:16,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:29:16,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105346970] [2023-11-29 04:29:16,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:16,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:29:16,286 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:29:16,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261637466] [2023-11-29 04:29:16,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:16,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:16,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:29:16,287 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:29:16,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2023-11-29 04:29:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:29:16,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:29:16,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:29:17,086 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 15 proven. 90 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2023-11-29 04:29:17,086 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:29:20,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:29:20,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105346970] [2023-11-29 04:29:20,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:29:20,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261637466] [2023-11-29 04:29:20,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261637466] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:29:20,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:29:20,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 04:29:20,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462430108] [2023-11-29 04:29:20,101 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:29:20,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:29:20,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:29:20,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:29:20,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=192, Unknown=1, NotChecked=0, Total=240 [2023-11-29 04:29:20,102 INFO L87 Difference]: Start difference. First operand 1228 states and 1717 transitions. Second operand has 10 states, 9 states have (on average 14.333333333333334) internal successors, (129), 10 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 04:29:21,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:29:21,123 INFO L93 Difference]: Finished difference Result 1273 states and 1751 transitions. [2023-11-29 04:29:21,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:29:21,124 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.333333333333334) internal successors, (129), 10 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) Word has length 205 [2023-11-29 04:29:21,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:29:21,126 INFO L225 Difference]: With dead ends: 1273 [2023-11-29 04:29:21,126 INFO L226 Difference]: Without dead ends: 1272 [2023-11-29 04:29:21,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=51, Invalid=220, Unknown=1, NotChecked=0, Total=272 [2023-11-29 04:29:21,127 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 175 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:29:21,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 959 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:29:21,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2023-11-29 04:29:21,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1228. [2023-11-29 04:29:21,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 1073 states have (on average 1.412861136999068) internal successors, (1516), 1126 states have internal predecessors, (1516), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 04:29:21,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1714 transitions. [2023-11-29 04:29:21,321 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1714 transitions. Word has length 205 [2023-11-29 04:29:21,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:29:21,321 INFO L495 AbstractCegarLoop]: Abstraction has 1228 states and 1714 transitions. [2023-11-29 04:29:21,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.333333333333334) internal successors, (129), 10 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 04:29:21,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1714 transitions. [2023-11-29 04:29:21,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-11-29 04:29:21,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:29:21,322 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:21,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2023-11-29 04:29:21,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:21,523 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:29:21,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:29:21,523 INFO L85 PathProgramCache]: Analyzing trace with hash 95215632, now seen corresponding path program 1 times [2023-11-29 04:29:21,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:29:21,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806791665] [2023-11-29 04:29:21,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:21,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:29:21,532 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:29:21,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1059985779] [2023-11-29 04:29:21,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:21,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:21,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:29:21,533 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:29:21,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2023-11-29 04:29:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:29:21,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:29:21,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:29:23,693 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 42 proven. 50 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-29 04:29:23,693 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:29:24,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:29:24,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806791665] [2023-11-29 04:29:24,681 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:29:24,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059985779] [2023-11-29 04:29:24,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059985779] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:29:24,681 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:29:24,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:29:24,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870264787] [2023-11-29 04:29:24,681 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:29:24,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:29:24,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:29:24,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:29:24,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:29:24,682 INFO L87 Difference]: Start difference. First operand 1228 states and 1714 transitions. Second operand has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 04:29:27,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:29:27,818 INFO L93 Difference]: Finished difference Result 1279 states and 1748 transitions. [2023-11-29 04:29:27,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:29:27,819 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 206 [2023-11-29 04:29:27,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:29:27,821 INFO L225 Difference]: With dead ends: 1279 [2023-11-29 04:29:27,821 INFO L226 Difference]: Without dead ends: 1278 [2023-11-29 04:29:27,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:29:27,821 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 121 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:29:27,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 775 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 04:29:27,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2023-11-29 04:29:27,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1228. [2023-11-29 04:29:27,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 1073 states have (on average 1.4082013047530288) internal successors, (1511), 1126 states have internal predecessors, (1511), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 04:29:27,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1709 transitions. [2023-11-29 04:29:27,983 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1709 transitions. Word has length 206 [2023-11-29 04:29:27,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:29:27,983 INFO L495 AbstractCegarLoop]: Abstraction has 1228 states and 1709 transitions. [2023-11-29 04:29:27,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.7) internal successors, (127), 11 states have internal predecessors, (127), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 04:29:27,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1709 transitions. [2023-11-29 04:29:27,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-29 04:29:27,984 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:29:27,984 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:27,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2023-11-29 04:29:28,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:28,185 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:29:28,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:29:28,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1343282588, now seen corresponding path program 1 times [2023-11-29 04:29:28,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:29:28,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636773637] [2023-11-29 04:29:28,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:28,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:29:28,196 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:29:28,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1033905206] [2023-11-29 04:29:28,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:28,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:28,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:29:28,197 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:29:28,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2023-11-29 04:29:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:29:28,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 04:29:28,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:29:31,502 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-29 04:29:31,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:29:33,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:29:33,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636773637] [2023-11-29 04:29:33,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:29:33,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033905206] [2023-11-29 04:29:33,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033905206] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:29:33,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:29:33,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:29:33,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185019022] [2023-11-29 04:29:33,734 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:29:33,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:29:33,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:29:33,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:29:33,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:29:33,736 INFO L87 Difference]: Start difference. First operand 1228 states and 1709 transitions. Second operand has 13 states, 12 states have (on average 10.666666666666666) internal successors, (128), 13 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 04:29:51,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:29:55,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:29:58,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:29:58,371 INFO L93 Difference]: Finished difference Result 1259 states and 1727 transitions. [2023-11-29 04:29:58,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:29:58,371 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.666666666666666) internal successors, (128), 13 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 207 [2023-11-29 04:29:58,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:29:58,373 INFO L225 Difference]: With dead ends: 1259 [2023-11-29 04:29:58,373 INFO L226 Difference]: Without dead ends: 1258 [2023-11-29 04:29:58,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=132, Invalid=736, Unknown=2, NotChecked=0, Total=870 [2023-11-29 04:29:58,374 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 239 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 2050 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2050 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:29:58,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 569 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2050 Invalid, 2 Unknown, 0 Unchecked, 11.8s Time] [2023-11-29 04:29:58,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2023-11-29 04:29:58,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1228. [2023-11-29 04:29:58,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 1073 states have (on average 1.4054054054054055) internal successors, (1508), 1126 states have internal predecessors, (1508), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 04:29:58,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1706 transitions. [2023-11-29 04:29:58,518 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1706 transitions. Word has length 207 [2023-11-29 04:29:58,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:29:58,518 INFO L495 AbstractCegarLoop]: Abstraction has 1228 states and 1706 transitions. [2023-11-29 04:29:58,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.666666666666666) internal successors, (128), 13 states have internal predecessors, (128), 6 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 04:29:58,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1706 transitions. [2023-11-29 04:29:58,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-29 04:29:58,519 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:29:58,519 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:58,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2023-11-29 04:29:58,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable81 [2023-11-29 04:29:58,720 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:29:58,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:29:58,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1307912850, now seen corresponding path program 1 times [2023-11-29 04:29:58,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:29:58,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000184425] [2023-11-29 04:29:58,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:58,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:29:58,731 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:29:58,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1104460506] [2023-11-29 04:29:58,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:29:58,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:29:58,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:29:58,732 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:29:58,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2023-11-29 04:29:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:29:58,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:29:58,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:30:00,540 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 42 proven. 54 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-11-29 04:30:00,540 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:30:00,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:30:00,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000184425] [2023-11-29 04:30:00,708 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:30:00,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104460506] [2023-11-29 04:30:00,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104460506] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:30:00,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:30:00,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 04:30:00,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573307217] [2023-11-29 04:30:00,709 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:30:00,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:30:00,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:30:00,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:30:00,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:30:00,710 INFO L87 Difference]: Start difference. First operand 1228 states and 1706 transitions. Second operand has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 12 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 04:30:04,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:30:04,738 INFO L93 Difference]: Finished difference Result 1278 states and 1740 transitions. [2023-11-29 04:30:04,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:30:04,738 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 12 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) Word has length 208 [2023-11-29 04:30:04,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:30:04,741 INFO L225 Difference]: With dead ends: 1278 [2023-11-29 04:30:04,741 INFO L226 Difference]: Without dead ends: 1277 [2023-11-29 04:30:04,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2023-11-29 04:30:04,742 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 139 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:30:04,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 781 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-29 04:30:04,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2023-11-29 04:30:04,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1228. [2023-11-29 04:30:04,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 1073 states have (on average 1.4007455731593663) internal successors, (1503), 1126 states have internal predecessors, (1503), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 04:30:04,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1701 transitions. [2023-11-29 04:30:04,963 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1701 transitions. Word has length 208 [2023-11-29 04:30:04,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:30:04,964 INFO L495 AbstractCegarLoop]: Abstraction has 1228 states and 1701 transitions. [2023-11-29 04:30:04,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.727272727272727) internal successors, (129), 12 states have internal predecessors, (129), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 5 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 04:30:04,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1701 transitions. [2023-11-29 04:30:04,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-11-29 04:30:04,965 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:30:04,965 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:30:04,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2023-11-29 04:30:05,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:30:05,166 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:30:05,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:30:05,166 INFO L85 PathProgramCache]: Analyzing trace with hash 88524264, now seen corresponding path program 1 times [2023-11-29 04:30:05,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:30:05,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101523978] [2023-11-29 04:30:05,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:30:05,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:30:05,179 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:30:05,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1328699487] [2023-11-29 04:30:05,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:30:05,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:30:05,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:30:05,181 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:30:05,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2023-11-29 04:30:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:30:05,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-29 04:30:05,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:30:09,117 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 45 proven. 102 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:30:09,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:30:10,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:30:10,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101523978] [2023-11-29 04:30:10,804 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:30:10,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328699487] [2023-11-29 04:30:10,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328699487] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:30:10,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:30:10,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 04:30:10,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812307693] [2023-11-29 04:30:10,805 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:30:10,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 04:30:10,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:30:10,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 04:30:10,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2023-11-29 04:30:10,806 INFO L87 Difference]: Start difference. First operand 1228 states and 1701 transitions. Second operand has 19 states, 18 states have (on average 7.666666666666667) internal successors, (138), 19 states have internal predecessors, (138), 5 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 04:30:18,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:30:18,891 INFO L93 Difference]: Finished difference Result 1257 states and 1719 transitions. [2023-11-29 04:30:18,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 04:30:18,892 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 7.666666666666667) internal successors, (138), 19 states have internal predecessors, (138), 5 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) Word has length 211 [2023-11-29 04:30:18,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:30:18,894 INFO L225 Difference]: With dead ends: 1257 [2023-11-29 04:30:18,894 INFO L226 Difference]: Without dead ends: 1252 [2023-11-29 04:30:18,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=142, Invalid=980, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 04:30:18,894 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 474 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 3569 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 3597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:30:18,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 640 Invalid, 3597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 3569 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-11-29 04:30:18,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2023-11-29 04:30:19,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1228. [2023-11-29 04:30:19,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 1073 states have (on average 1.3886300093196644) internal successors, (1490), 1126 states have internal predecessors, (1490), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 04:30:19,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1688 transitions. [2023-11-29 04:30:19,042 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1688 transitions. Word has length 211 [2023-11-29 04:30:19,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:30:19,043 INFO L495 AbstractCegarLoop]: Abstraction has 1228 states and 1688 transitions. [2023-11-29 04:30:19,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 7.666666666666667) internal successors, (138), 19 states have internal predecessors, (138), 5 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2023-11-29 04:30:19,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1688 transitions. [2023-11-29 04:30:19,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-11-29 04:30:19,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:30:19,044 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:30:19,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0 [2023-11-29 04:30:19,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:30:19,244 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:30:19,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:30:19,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1550714986, now seen corresponding path program 1 times [2023-11-29 04:30:19,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:30:19,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922197284] [2023-11-29 04:30:19,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:30:19,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:30:19,254 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:30:19,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [251202835] [2023-11-29 04:30:19,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:30:19,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:30:19,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:30:19,256 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:30:19,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2023-11-29 04:30:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:30:19,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 04:30:19,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:30:24,130 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 75 proven. 74 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:30:24,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:30:26,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:30:26,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922197284] [2023-11-29 04:30:26,795 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:30:26,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251202835] [2023-11-29 04:30:26,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251202835] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:30:26,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:30:26,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 04:30:26,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565065871] [2023-11-29 04:30:26,795 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:30:26,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 04:30:26,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:30:26,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 04:30:26,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:30:26,796 INFO L87 Difference]: Start difference. First operand 1228 states and 1688 transitions. Second operand has 19 states, 18 states have (on average 7.722222222222222) internal successors, (139), 18 states have internal predecessors, (139), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 04:30:36,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:30:36,329 INFO L93 Difference]: Finished difference Result 1266 states and 1706 transitions. [2023-11-29 04:30:36,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 04:30:36,330 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 7.722222222222222) internal successors, (139), 18 states have internal predecessors, (139), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) Word has length 212 [2023-11-29 04:30:36,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:30:36,331 INFO L225 Difference]: With dead ends: 1266 [2023-11-29 04:30:36,331 INFO L226 Difference]: Without dead ends: 1263 [2023-11-29 04:30:36,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=130, Invalid=740, Unknown=0, NotChecked=0, Total=870 [2023-11-29 04:30:36,331 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 321 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 3158 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 3177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:30:36,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 923 Invalid, 3177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 3158 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-11-29 04:30:36,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2023-11-29 04:30:36,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1228. [2023-11-29 04:30:36,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 1073 states have (on average 1.3774464119291705) internal successors, (1478), 1126 states have internal predecessors, (1478), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 04:30:36,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1676 transitions. [2023-11-29 04:30:36,484 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1676 transitions. Word has length 212 [2023-11-29 04:30:36,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:30:36,484 INFO L495 AbstractCegarLoop]: Abstraction has 1228 states and 1676 transitions. [2023-11-29 04:30:36,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 7.722222222222222) internal successors, (139), 18 states have internal predecessors, (139), 6 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 6 states have call successors, (17) [2023-11-29 04:30:36,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1676 transitions. [2023-11-29 04:30:36,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-11-29 04:30:36,485 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:30:36,486 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:30:36,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2023-11-29 04:30:36,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:30:36,686 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:30:36,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:30:36,686 INFO L85 PathProgramCache]: Analyzing trace with hash 539259294, now seen corresponding path program 1 times [2023-11-29 04:30:36,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:30:36,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944996097] [2023-11-29 04:30:36,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:30:36,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:30:36,696 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:30:36,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [755783510] [2023-11-29 04:30:36,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:30:36,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:30:36,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:30:36,698 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:30:36,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2023-11-29 04:30:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:30:36,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:30:36,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:30:37,309 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 72 proven. 78 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-29 04:30:37,309 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:30:45,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:30:45,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944996097] [2023-11-29 04:30:45,574 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:30:45,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755783510] [2023-11-29 04:30:45,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755783510] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:30:45,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:30:45,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 04:30:45,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737358698] [2023-11-29 04:30:45,575 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:30:45,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:30:45,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:30:45,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:30:45,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=166, Unknown=2, NotChecked=0, Total=210 [2023-11-29 04:30:45,576 INFO L87 Difference]: Start difference. First operand 1228 states and 1676 transitions. Second operand has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-29 04:30:52,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:30:52,555 INFO L93 Difference]: Finished difference Result 1521 states and 2054 transitions. [2023-11-29 04:30:52,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 04:30:52,555 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 220 [2023-11-29 04:30:52,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:30:52,557 INFO L225 Difference]: With dead ends: 1521 [2023-11-29 04:30:52,557 INFO L226 Difference]: Without dead ends: 1516 [2023-11-29 04:30:52,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=144, Invalid=454, Unknown=2, NotChecked=0, Total=600 [2023-11-29 04:30:52,558 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 356 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:30:52,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 933 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1667 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-29 04:30:52,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2023-11-29 04:30:52,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1430. [2023-11-29 04:30:52,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1430 states, 1259 states have (on average 1.4066719618745036) internal successors, (1771), 1312 states have internal predecessors, (1771), 115 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2023-11-29 04:30:52,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1430 states to 1430 states and 2001 transitions. [2023-11-29 04:30:52,729 INFO L78 Accepts]: Start accepts. Automaton has 1430 states and 2001 transitions. Word has length 220 [2023-11-29 04:30:52,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:30:52,730 INFO L495 AbstractCegarLoop]: Abstraction has 1430 states and 2001 transitions. [2023-11-29 04:30:52,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 4 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-29 04:30:52,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1430 states and 2001 transitions. [2023-11-29 04:30:52,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-11-29 04:30:52,731 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:30:52,731 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:30:52,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2023-11-29 04:30:52,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:30:52,932 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:30:52,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:30:52,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1860002126, now seen corresponding path program 1 times [2023-11-29 04:30:52,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:30:52,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418635721] [2023-11-29 04:30:52,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:30:52,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:30:52,943 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:30:52,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602532801] [2023-11-29 04:30:52,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:30:52,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:30:52,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:30:52,944 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:30:52,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2023-11-29 04:30:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:30:53,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:30:53,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:30:53,138 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 04:30:53,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:30:53,287 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 04:30:53,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:30:53,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418635721] [2023-11-29 04:30:53,288 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:30:53,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602532801] [2023-11-29 04:30:53,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602532801] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:30:53,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:30:53,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 04:30:53,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917435770] [2023-11-29 04:30:53,288 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:30:53,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:30:53,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:30:53,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:30:53,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:30:53,290 INFO L87 Difference]: Start difference. First operand 1430 states and 2001 transitions. Second operand has 8 states, 7 states have (on average 38.285714285714285) internal successors, (268), 8 states have internal predecessors, (268), 7 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2023-11-29 04:30:54,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:30:54,227 INFO L93 Difference]: Finished difference Result 3119 states and 4096 transitions. [2023-11-29 04:30:54,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:30:54,227 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 38.285714285714285) internal successors, (268), 8 states have internal predecessors, (268), 7 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) Word has length 225 [2023-11-29 04:30:54,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:30:54,230 INFO L225 Difference]: With dead ends: 3119 [2023-11-29 04:30:54,230 INFO L226 Difference]: Without dead ends: 3118 [2023-11-29 04:30:54,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:30:54,232 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 639 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:30:54,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 728 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:30:54,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3118 states. [2023-11-29 04:30:54,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3118 to 2592. [2023-11-29 04:30:54,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2592 states, 2321 states have (on average 1.3614821197759586) internal successors, (3160), 2374 states have internal predecessors, (3160), 215 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2023-11-29 04:30:54,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2592 states to 2592 states and 3590 transitions. [2023-11-29 04:30:54,631 INFO L78 Accepts]: Start accepts. Automaton has 2592 states and 3590 transitions. Word has length 225 [2023-11-29 04:30:54,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:30:54,631 INFO L495 AbstractCegarLoop]: Abstraction has 2592 states and 3590 transitions. [2023-11-29 04:30:54,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 38.285714285714285) internal successors, (268), 8 states have internal predecessors, (268), 7 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2023-11-29 04:30:54,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2592 states and 3590 transitions. [2023-11-29 04:30:54,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2023-11-29 04:30:54,633 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:30:54,633 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:30:54,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2023-11-29 04:30:54,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:30:54,833 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:30:54,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:30:54,834 INFO L85 PathProgramCache]: Analyzing trace with hash -954272990, now seen corresponding path program 2 times [2023-11-29 04:30:54,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:30:54,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943933760] [2023-11-29 04:30:54,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:30:54,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:30:54,843 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:30:54,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [134844813] [2023-11-29 04:30:54,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:30:54,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:30:54,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:30:54,845 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:30:54,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2023-11-29 04:30:54,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:30:54,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:30:54,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:30:54,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:30:55,232 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 04:30:55,232 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:30:55,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:30:55,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943933760] [2023-11-29 04:30:55,378 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:30:55,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134844813] [2023-11-29 04:30:55,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134844813] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:30:55,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:30:55,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 04:30:55,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754466216] [2023-11-29 04:30:55,379 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:30:55,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:30:55,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:30:55,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:30:55,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:30:55,380 INFO L87 Difference]: Start difference. First operand 2592 states and 3590 transitions. Second operand has 6 states, 5 states have (on average 28.8) internal successors, (144), 6 states have internal predecessors, (144), 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 04:30:55,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:30:55,931 INFO L93 Difference]: Finished difference Result 2605 states and 3600 transitions. [2023-11-29 04:30:55,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:30:55,931 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 28.8) internal successors, (144), 6 states have internal predecessors, (144), 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 228 [2023-11-29 04:30:55,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:30:55,934 INFO L225 Difference]: With dead ends: 2605 [2023-11-29 04:30:55,934 INFO L226 Difference]: Without dead ends: 2604 [2023-11-29 04:30:55,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:30:55,934 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 117 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:30:55,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 280 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:30:55,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2023-11-29 04:30:56,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 2599. [2023-11-29 04:30:56,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 2328 states have (on average 1.3603951890034365) internal successors, (3167), 2381 states have internal predecessors, (3167), 215 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2023-11-29 04:30:56,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 3597 transitions. [2023-11-29 04:30:56,320 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 3597 transitions. Word has length 228 [2023-11-29 04:30:56,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:30:56,320 INFO L495 AbstractCegarLoop]: Abstraction has 2599 states and 3597 transitions. [2023-11-29 04:30:56,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 28.8) internal successors, (144), 6 states have internal predecessors, (144), 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 04:30:56,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 3597 transitions. [2023-11-29 04:30:56,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-11-29 04:30:56,321 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:30:56,322 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:30:56,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2023-11-29 04:30:56,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:30:56,522 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:30:56,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:30:56,522 INFO L85 PathProgramCache]: Analyzing trace with hash 670607993, now seen corresponding path program 1 times [2023-11-29 04:30:56,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:30:56,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553938791] [2023-11-29 04:30:56,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:30:56,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:30:56,532 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:30:56,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954266316] [2023-11-29 04:30:56,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:30:56,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:30:56,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:30:56,533 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:30:56,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2023-11-29 04:30:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:30:56,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:30:56,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:30:56,955 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 42 proven. 88 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 04:30:56,955 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:30:57,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:30:57,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553938791] [2023-11-29 04:30:57,075 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:30:57,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954266316] [2023-11-29 04:30:57,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954266316] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:30:57,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:30:57,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:30:57,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756637873] [2023-11-29 04:30:57,075 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:30:57,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:30:57,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:30:57,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:30:57,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:30:57,076 INFO L87 Difference]: Start difference. First operand 2599 states and 3597 transitions. Second operand has 7 states, 6 states have (on average 24.333333333333332) internal successors, (146), 7 states have internal predecessors, (146), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 04:30:58,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:30:58,822 INFO L93 Difference]: Finished difference Result 2638 states and 3615 transitions. [2023-11-29 04:30:58,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:30:58,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 24.333333333333332) internal successors, (146), 7 states have internal predecessors, (146), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 230 [2023-11-29 04:30:58,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:30:58,825 INFO L225 Difference]: With dead ends: 2638 [2023-11-29 04:30:58,826 INFO L226 Difference]: Without dead ends: 2636 [2023-11-29 04:30:58,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 288 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 04:30:58,826 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 51 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:30:58,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 627 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:30:58,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2023-11-29 04:30:59,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2603. [2023-11-29 04:30:59,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2603 states, 2332 states have (on average 1.3537735849056605) internal successors, (3157), 2385 states have internal predecessors, (3157), 215 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2023-11-29 04:30:59,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2603 states to 2603 states and 3587 transitions. [2023-11-29 04:30:59,264 INFO L78 Accepts]: Start accepts. Automaton has 2603 states and 3587 transitions. Word has length 230 [2023-11-29 04:30:59,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:30:59,264 INFO L495 AbstractCegarLoop]: Abstraction has 2603 states and 3587 transitions. [2023-11-29 04:30:59,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 24.333333333333332) internal successors, (146), 7 states have internal predecessors, (146), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 04:30:59,264 INFO L276 IsEmpty]: Start isEmpty. Operand 2603 states and 3587 transitions. [2023-11-29 04:30:59,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-11-29 04:30:59,265 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:30:59,265 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:30:59,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Forceful destruction successful, exit code 0 [2023-11-29 04:30:59,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2023-11-29 04:30:59,466 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:30:59,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:30:59,466 INFO L85 PathProgramCache]: Analyzing trace with hash -685988529, now seen corresponding path program 1 times [2023-11-29 04:30:59,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:30:59,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484475851] [2023-11-29 04:30:59,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:30:59,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:30:59,476 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:30:59,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [151216207] [2023-11-29 04:30:59,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:30:59,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:30:59,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:30:59,477 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:30:59,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2023-11-29 04:30:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:30:59,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:30:59,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:30:59,909 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 04:30:59,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:31:32,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:31:32,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484475851] [2023-11-29 04:31:32,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:31:32,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151216207] [2023-11-29 04:31:32,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151216207] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:31:32,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:31:32,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:31:32,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256390232] [2023-11-29 04:31:32,389 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:31:32,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:31:32,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:31:32,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:31:32,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=84, Unknown=8, NotChecked=0, Total=132 [2023-11-29 04:31:32,390 INFO L87 Difference]: Start difference. First operand 2603 states and 3587 transitions. Second operand has 7 states, 6 states have (on average 24.5) internal successors, (147), 7 states have internal predecessors, (147), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 04:31:34,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:31:34,333 INFO L93 Difference]: Finished difference Result 2652 states and 3607 transitions. [2023-11-29 04:31:34,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:31:34,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 24.5) internal successors, (147), 7 states have internal predecessors, (147), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 231 [2023-11-29 04:31:34,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:31:34,336 INFO L225 Difference]: With dead ends: 2652 [2023-11-29 04:31:34,336 INFO L226 Difference]: Without dead ends: 2651 [2023-11-29 04:31:34,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 32.4s TimeCoverageRelationStatistics Valid=94, Invalid=170, Unknown=8, NotChecked=0, Total=272 [2023-11-29 04:31:34,337 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 181 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:31:34,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 443 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 04:31:34,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states. [2023-11-29 04:31:34,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 2607. [2023-11-29 04:31:34,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2607 states, 2336 states have (on average 1.3527397260273972) internal successors, (3160), 2389 states have internal predecessors, (3160), 215 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2023-11-29 04:31:34,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2607 states to 2607 states and 3590 transitions. [2023-11-29 04:31:34,706 INFO L78 Accepts]: Start accepts. Automaton has 2607 states and 3590 transitions. Word has length 231 [2023-11-29 04:31:34,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:31:34,706 INFO L495 AbstractCegarLoop]: Abstraction has 2607 states and 3590 transitions. [2023-11-29 04:31:34,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 24.5) internal successors, (147), 7 states have internal predecessors, (147), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 04:31:34,707 INFO L276 IsEmpty]: Start isEmpty. Operand 2607 states and 3590 transitions. [2023-11-29 04:31:34,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-11-29 04:31:34,708 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:31:34,708 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:31:34,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Forceful destruction successful, exit code 0 [2023-11-29 04:31:34,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2023-11-29 04:31:34,908 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:31:34,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:31:34,908 INFO L85 PathProgramCache]: Analyzing trace with hash 209192251, now seen corresponding path program 1 times [2023-11-29 04:31:34,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:31:34,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151604023] [2023-11-29 04:31:34,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:31:34,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:31:34,918 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:31:34,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1074513961] [2023-11-29 04:31:34,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:31:34,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:31:34,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:31:34,919 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:31:34,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2023-11-29 04:31:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:31:35,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:31:35,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:31:35,149 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2023-11-29 04:31:35,149 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:31:44,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:31:44,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151604023] [2023-11-29 04:31:44,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:31:44,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074513961] [2023-11-29 04:31:44,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074513961] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:31:44,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:31:44,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 04:31:44,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881794456] [2023-11-29 04:31:44,457 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:31:44,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:31:44,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:31:44,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:31:44,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2023-11-29 04:31:44,458 INFO L87 Difference]: Start difference. First operand 2607 states and 3590 transitions. Second operand has 6 states, 5 states have (on average 22.2) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:31:45,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:31:45,857 INFO L93 Difference]: Finished difference Result 2632 states and 3600 transitions. [2023-11-29 04:31:45,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:31:45,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.2) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 232 [2023-11-29 04:31:45,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:31:45,860 INFO L225 Difference]: With dead ends: 2632 [2023-11-29 04:31:45,860 INFO L226 Difference]: Without dead ends: 2631 [2023-11-29 04:31:45,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=44, Invalid=86, Unknown=2, NotChecked=0, Total=132 [2023-11-29 04:31:45,861 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 38 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:31:45,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 569 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:31:45,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2023-11-29 04:31:46,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2610. [2023-11-29 04:31:46,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2610 states, 2339 states have (on average 1.3518597691321077) internal successors, (3162), 2392 states have internal predecessors, (3162), 215 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (215), 215 states have call predecessors, (215), 215 states have call successors, (215) [2023-11-29 04:31:46,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 3592 transitions. [2023-11-29 04:31:46,244 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 3592 transitions. Word has length 232 [2023-11-29 04:31:46,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:31:46,244 INFO L495 AbstractCegarLoop]: Abstraction has 2610 states and 3592 transitions. [2023-11-29 04:31:46,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.2) internal successors, (111), 6 states have internal predecessors, (111), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:31:46,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 3592 transitions. [2023-11-29 04:31:46,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-11-29 04:31:46,246 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:31:46,246 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:31:46,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2023-11-29 04:31:46,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:31:46,446 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:31:46,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:31:46,447 INFO L85 PathProgramCache]: Analyzing trace with hash -2104974639, now seen corresponding path program 1 times [2023-11-29 04:31:46,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:31:46,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396507733] [2023-11-29 04:31:46,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:31:46,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:31:46,458 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:31:46,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [682615220] [2023-11-29 04:31:46,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:31:46,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:31:46,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:31:46,459 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:31:46,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2023-11-29 04:31:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:31:46,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:31:46,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:31:47,153 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 04:31:47,153 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:31:47,507 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 04:31:47,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:31:47,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396507733] [2023-11-29 04:31:47,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:31:47,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682615220] [2023-11-29 04:31:47,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682615220] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:31:47,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:31:47,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 04:31:47,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210592276] [2023-11-29 04:31:47,508 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:31:47,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 04:31:47,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:31:47,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 04:31:47,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:31:47,510 INFO L87 Difference]: Start difference. First operand 2610 states and 3592 transitions. Second operand has 16 states, 15 states have (on average 19.333333333333332) internal successors, (290), 16 states have internal predecessors, (290), 9 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 9 states have call predecessors, (32), 9 states have call successors, (32) [2023-11-29 04:31:53,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:31:53,696 INFO L93 Difference]: Finished difference Result 3421 states and 4611 transitions. [2023-11-29 04:31:53,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 04:31:53,697 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 19.333333333333332) internal successors, (290), 16 states have internal predecessors, (290), 9 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 9 states have call predecessors, (32), 9 states have call successors, (32) Word has length 233 [2023-11-29 04:31:53,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:31:53,700 INFO L225 Difference]: With dead ends: 3421 [2023-11-29 04:31:53,700 INFO L226 Difference]: Without dead ends: 3420 [2023-11-29 04:31:53,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=313, Invalid=809, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 04:31:53,702 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 1171 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 1840 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 1920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:31:53,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 1061 Invalid, 1920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1840 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-29 04:31:53,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3420 states. [2023-11-29 04:31:54,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3420 to 2717. [2023-11-29 04:31:54,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 2438 states have (on average 1.3630024610336342) internal successors, (3323), 2491 states have internal predecessors, (3323), 223 states have call successors, (223), 2 states have call predecessors, (223), 2 states have return successors, (223), 223 states have call predecessors, (223), 223 states have call successors, (223) [2023-11-29 04:31:54,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 3769 transitions. [2023-11-29 04:31:54,096 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 3769 transitions. Word has length 233 [2023-11-29 04:31:54,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:31:54,096 INFO L495 AbstractCegarLoop]: Abstraction has 2717 states and 3769 transitions. [2023-11-29 04:31:54,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 19.333333333333332) internal successors, (290), 16 states have internal predecessors, (290), 9 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 9 states have call predecessors, (32), 9 states have call successors, (32) [2023-11-29 04:31:54,096 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 3769 transitions. [2023-11-29 04:31:54,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-29 04:31:54,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:31:54,098 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:31:54,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2023-11-29 04:31:54,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:31:54,299 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:31:54,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:31:54,299 INFO L85 PathProgramCache]: Analyzing trace with hash -829704195, now seen corresponding path program 1 times [2023-11-29 04:31:54,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:31:54,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581612002] [2023-11-29 04:31:54,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:31:54,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:31:54,309 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:31:54,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [663508058] [2023-11-29 04:31:54,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:31:54,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:31:54,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:31:54,311 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:31:54,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2023-11-29 04:31:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:31:54,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:31:54,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:31:54,840 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 42 proven. 92 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 04:31:54,841 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:31:54,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:31:54,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581612002] [2023-11-29 04:31:54,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:31:54,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663508058] [2023-11-29 04:31:54,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663508058] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:31:54,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:31:54,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:31:54,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462057558] [2023-11-29 04:31:54,965 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:31:54,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:31:54,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:31:54,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:31:54,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:31:54,966 INFO L87 Difference]: Start difference. First operand 2717 states and 3769 transitions. Second operand has 8 states, 7 states have (on average 21.428571428571427) internal successors, (150), 8 states have internal predecessors, (150), 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 04:31:56,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:31:56,173 INFO L93 Difference]: Finished difference Result 2727 states and 3769 transitions. [2023-11-29 04:31:56,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:31:56,173 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 21.428571428571427) internal successors, (150), 8 states have internal predecessors, (150), 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 234 [2023-11-29 04:31:56,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:31:56,176 INFO L225 Difference]: With dead ends: 2727 [2023-11-29 04:31:56,176 INFO L226 Difference]: Without dead ends: 2726 [2023-11-29 04:31:56,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:31:56,176 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 122 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:31:56,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 540 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:31:56,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2023-11-29 04:31:56,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 2717. [2023-11-29 04:31:56,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 2438 states have (on average 1.361771944216571) internal successors, (3320), 2491 states have internal predecessors, (3320), 223 states have call successors, (223), 2 states have call predecessors, (223), 2 states have return successors, (223), 223 states have call predecessors, (223), 223 states have call successors, (223) [2023-11-29 04:31:56,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 3766 transitions. [2023-11-29 04:31:56,549 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 3766 transitions. Word has length 234 [2023-11-29 04:31:56,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:31:56,549 INFO L495 AbstractCegarLoop]: Abstraction has 2717 states and 3766 transitions. [2023-11-29 04:31:56,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 21.428571428571427) internal successors, (150), 8 states have internal predecessors, (150), 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 04:31:56,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 3766 transitions. [2023-11-29 04:31:56,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-29 04:31:56,551 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:31:56,551 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:31:56,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2023-11-29 04:31:56,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:31:56,751 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:31:56,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:31:56,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1483167419, now seen corresponding path program 2 times [2023-11-29 04:31:56,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:31:56,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405510700] [2023-11-29 04:31:56,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:31:56,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:31:56,761 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:31:56,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1836900856] [2023-11-29 04:31:56,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:31:56,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:31:56,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:31:56,762 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:31:56,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2023-11-29 04:31:56,858 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:31:56,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:31:56,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:31:56,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:31:57,113 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 90 proven. 48 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 04:31:57,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:31:57,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:31:57,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405510700] [2023-11-29 04:31:57,172 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:31:57,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836900856] [2023-11-29 04:31:57,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836900856] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:31:57,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:31:57,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:31:57,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156134273] [2023-11-29 04:31:57,173 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:31:57,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:31:57,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:31:57,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:31:57,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:31:57,174 INFO L87 Difference]: Start difference. First operand 2717 states and 3766 transitions. Second operand has 7 states, 6 states have (on average 25.0) internal successors, (150), 7 states have internal predecessors, (150), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-29 04:31:58,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:31:58,099 INFO L93 Difference]: Finished difference Result 2743 states and 3766 transitions. [2023-11-29 04:31:58,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:31:58,100 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 25.0) internal successors, (150), 7 states have internal predecessors, (150), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 234 [2023-11-29 04:31:58,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:31:58,102 INFO L225 Difference]: With dead ends: 2743 [2023-11-29 04:31:58,102 INFO L226 Difference]: Without dead ends: 2741 [2023-11-29 04:31:58,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:31:58,103 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 278 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:31:58,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 774 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:31:58,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2023-11-29 04:31:58,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 2355. [2023-11-29 04:31:58,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 2106 states have (on average 1.2939221272554606) internal successors, (2725), 2157 states have internal predecessors, (2725), 195 states have call successors, (195), 2 states have call predecessors, (195), 2 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) [2023-11-29 04:31:58,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 3115 transitions. [2023-11-29 04:31:58,458 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 3115 transitions. Word has length 234 [2023-11-29 04:31:58,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:31:58,459 INFO L495 AbstractCegarLoop]: Abstraction has 2355 states and 3115 transitions. [2023-11-29 04:31:58,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 25.0) internal successors, (150), 7 states have internal predecessors, (150), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-29 04:31:58,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 3115 transitions. [2023-11-29 04:31:58,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-29 04:31:58,460 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:31:58,460 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:31:58,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Forceful destruction successful, exit code 0 [2023-11-29 04:31:58,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:31:58,661 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:31:58,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:31:58,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1127389289, now seen corresponding path program 2 times [2023-11-29 04:31:58,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:31:58,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553341724] [2023-11-29 04:31:58,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:31:58,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:31:58,672 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:31:58,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [885329599] [2023-11-29 04:31:58,672 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:31:58,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:31:58,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:31:58,673 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:31:58,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2023-11-29 04:31:58,746 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:31:58,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:31:58,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 04:31:58,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:32:00,119 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2023-11-29 04:32:00,119 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:32:12,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:12,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553341724] [2023-11-29 04:32:12,274 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:32:12,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885329599] [2023-11-29 04:32:12,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885329599] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:32:12,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:32:12,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:32:12,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128821130] [2023-11-29 04:32:12,274 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:32:12,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:32:12,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:12,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:32:12,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=205, Unknown=3, NotChecked=0, Total=272 [2023-11-29 04:32:12,276 INFO L87 Difference]: Start difference. First operand 2355 states and 3115 transitions. Second operand has 13 states, 12 states have (on average 12.75) internal successors, (153), 13 states have internal predecessors, (153), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 04:32:14,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:32:14,638 INFO L93 Difference]: Finished difference Result 2711 states and 3545 transitions. [2023-11-29 04:32:14,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:32:14,639 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.75) internal successors, (153), 13 states have internal predecessors, (153), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) Word has length 234 [2023-11-29 04:32:14,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:32:14,641 INFO L225 Difference]: With dead ends: 2711 [2023-11-29 04:32:14,641 INFO L226 Difference]: Without dead ends: 2709 [2023-11-29 04:32:14,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=142, Invalid=455, Unknown=3, NotChecked=0, Total=600 [2023-11-29 04:32:14,642 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 382 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 1690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:32:14,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 996 Invalid, 1690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 04:32:14,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2023-11-29 04:32:15,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 2376. [2023-11-29 04:32:15,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2376 states, 2125 states have (on average 1.291764705882353) internal successors, (2745), 2176 states have internal predecessors, (2745), 197 states have call successors, (197), 2 states have call predecessors, (197), 2 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2023-11-29 04:32:15,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2376 states to 2376 states and 3139 transitions. [2023-11-29 04:32:15,019 INFO L78 Accepts]: Start accepts. Automaton has 2376 states and 3139 transitions. Word has length 234 [2023-11-29 04:32:15,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:32:15,019 INFO L495 AbstractCegarLoop]: Abstraction has 2376 states and 3139 transitions. [2023-11-29 04:32:15,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.75) internal successors, (153), 13 states have internal predecessors, (153), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 04:32:15,019 INFO L276 IsEmpty]: Start isEmpty. Operand 2376 states and 3139 transitions. [2023-11-29 04:32:15,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-11-29 04:32:15,020 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:32:15,021 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:32:15,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2023-11-29 04:32:15,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:15,221 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:32:15,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:15,221 INFO L85 PathProgramCache]: Analyzing trace with hash 48973907, now seen corresponding path program 1 times [2023-11-29 04:32:15,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:15,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262791405] [2023-11-29 04:32:15,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:15,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:15,231 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:32:15,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1535703302] [2023-11-29 04:32:15,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:15,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:15,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:32:15,232 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:32:15,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2023-11-29 04:32:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:32:15,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:32:15,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:32:15,771 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 42 proven. 93 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 04:32:15,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:32:15,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:15,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262791405] [2023-11-29 04:32:15,881 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:32:15,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535703302] [2023-11-29 04:32:15,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535703302] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:32:15,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:32:15,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:32:15,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094103338] [2023-11-29 04:32:15,882 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:32:15,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:32:15,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:15,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:32:15,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:32:15,883 INFO L87 Difference]: Start difference. First operand 2376 states and 3139 transitions. Second operand has 8 states, 7 states have (on average 21.571428571428573) internal successors, (151), 8 states have internal predecessors, (151), 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 04:32:17,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:32:17,229 INFO L93 Difference]: Finished difference Result 2410 states and 3149 transitions. [2023-11-29 04:32:17,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:32:17,229 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 21.571428571428573) internal successors, (151), 8 states have internal predecessors, (151), 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 235 [2023-11-29 04:32:17,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:32:17,232 INFO L225 Difference]: With dead ends: 2410 [2023-11-29 04:32:17,232 INFO L226 Difference]: Without dead ends: 2409 [2023-11-29 04:32:17,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:32:17,232 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 56 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:32:17,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 654 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 04:32:17,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2409 states. [2023-11-29 04:32:17,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2409 to 2379. [2023-11-29 04:32:17,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2379 states, 2128 states have (on average 1.2913533834586466) internal successors, (2748), 2179 states have internal predecessors, (2748), 197 states have call successors, (197), 2 states have call predecessors, (197), 2 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2023-11-29 04:32:17,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3142 transitions. [2023-11-29 04:32:17,673 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3142 transitions. Word has length 235 [2023-11-29 04:32:17,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:32:17,673 INFO L495 AbstractCegarLoop]: Abstraction has 2379 states and 3142 transitions. [2023-11-29 04:32:17,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 21.571428571428573) internal successors, (151), 8 states have internal predecessors, (151), 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 04:32:17,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3142 transitions. [2023-11-29 04:32:17,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-11-29 04:32:17,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:32:17,674 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:32:17,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2023-11-29 04:32:17,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:17,875 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:32:17,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:17,875 INFO L85 PathProgramCache]: Analyzing trace with hash 589329780, now seen corresponding path program 2 times [2023-11-29 04:32:17,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:17,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381038314] [2023-11-29 04:32:17,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:17,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:17,885 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:32:17,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1330856840] [2023-11-29 04:32:17,885 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:32:17,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:17,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:32:17,886 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:32:17,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2023-11-29 04:32:17,965 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:32:17,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:32:17,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:32:17,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:32:19,583 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 3 proven. 144 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2023-11-29 04:32:19,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:32:19,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:19,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381038314] [2023-11-29 04:32:19,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:32:19,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330856840] [2023-11-29 04:32:19,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330856840] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:32:19,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:32:19,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:32:19,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88777007] [2023-11-29 04:32:19,732 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:32:19,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:32:19,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:19,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:32:19,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:32:19,732 INFO L87 Difference]: Start difference. First operand 2379 states and 3142 transitions. Second operand has 14 states, 13 states have (on average 11.846153846153847) internal successors, (154), 13 states have internal predecessors, (154), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 04:32:21,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:32:21,658 INFO L93 Difference]: Finished difference Result 2719 states and 3553 transitions. [2023-11-29 04:32:21,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 04:32:21,659 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.846153846153847) internal successors, (154), 13 states have internal predecessors, (154), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 235 [2023-11-29 04:32:21,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:32:21,668 INFO L225 Difference]: With dead ends: 2719 [2023-11-29 04:32:21,668 INFO L226 Difference]: Without dead ends: 2714 [2023-11-29 04:32:21,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2023-11-29 04:32:21,668 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 302 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 1654 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:32:21,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 730 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1654 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:32:21,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2714 states. [2023-11-29 04:32:22,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2714 to 2378. [2023-11-29 04:32:22,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2378 states, 2127 states have (on average 1.2910202162670428) internal successors, (2746), 2178 states have internal predecessors, (2746), 197 states have call successors, (197), 2 states have call predecessors, (197), 2 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2023-11-29 04:32:22,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 3140 transitions. [2023-11-29 04:32:22,093 INFO L78 Accepts]: Start accepts. Automaton has 2378 states and 3140 transitions. Word has length 235 [2023-11-29 04:32:22,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:32:22,093 INFO L495 AbstractCegarLoop]: Abstraction has 2378 states and 3140 transitions. [2023-11-29 04:32:22,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.846153846153847) internal successors, (154), 13 states have internal predecessors, (154), 6 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-29 04:32:22,093 INFO L276 IsEmpty]: Start isEmpty. Operand 2378 states and 3140 transitions. [2023-11-29 04:32:22,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-11-29 04:32:22,094 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:32:22,095 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:32:22,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2023-11-29 04:32:22,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:22,295 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:32:22,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:22,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1518191295, now seen corresponding path program 1 times [2023-11-29 04:32:22,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:22,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703171812] [2023-11-29 04:32:22,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:22,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:22,307 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:32:22,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1830681314] [2023-11-29 04:32:22,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:22,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:22,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:32:22,308 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:32:22,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2023-11-29 04:32:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:32:22,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:32:22,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:32:22,593 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2023-11-29 04:32:22,593 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:32:31,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:31,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703171812] [2023-11-29 04:32:31,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:32:31,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830681314] [2023-11-29 04:32:31,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830681314] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:32:31,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:32:31,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 04:32:31,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834976735] [2023-11-29 04:32:31,569 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:32:31,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:32:31,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:31,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:32:31,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=49, Unknown=3, NotChecked=0, Total=72 [2023-11-29 04:32:31,571 INFO L87 Difference]: Start difference. First operand 2378 states and 3140 transitions. Second operand has 6 states, 5 states have (on average 23.0) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:32:32,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:32:32,084 INFO L93 Difference]: Finished difference Result 2401 states and 3144 transitions. [2023-11-29 04:32:32,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:32:32,085 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.0) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 236 [2023-11-29 04:32:32,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:32:32,087 INFO L225 Difference]: With dead ends: 2401 [2023-11-29 04:32:32,087 INFO L226 Difference]: Without dead ends: 2400 [2023-11-29 04:32:32,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=25, Invalid=62, Unknown=3, NotChecked=0, Total=90 [2023-11-29 04:32:32,088 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 36 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:32:32,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 591 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:32:32,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2400 states. [2023-11-29 04:32:32,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2400 to 2379. [2023-11-29 04:32:32,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2379 states, 2128 states have (on average 1.2899436090225564) internal successors, (2745), 2179 states have internal predecessors, (2745), 197 states have call successors, (197), 2 states have call predecessors, (197), 2 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2023-11-29 04:32:32,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3139 transitions. [2023-11-29 04:32:32,476 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3139 transitions. Word has length 236 [2023-11-29 04:32:32,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:32:32,476 INFO L495 AbstractCegarLoop]: Abstraction has 2379 states and 3139 transitions. [2023-11-29 04:32:32,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.0) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:32:32,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3139 transitions. [2023-11-29 04:32:32,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-11-29 04:32:32,478 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:32:32,478 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:32:32,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2023-11-29 04:32:32,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:32,678 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:32:32,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:32,678 INFO L85 PathProgramCache]: Analyzing trace with hash -180709931, now seen corresponding path program 1 times [2023-11-29 04:32:32,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:32,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438101636] [2023-11-29 04:32:32,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:32,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:32,688 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:32:32,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [270655759] [2023-11-29 04:32:32,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:32,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:32,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:32:32,689 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:32:32,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2023-11-29 04:32:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:32:32,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:32:32,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:32:33,391 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 42 proven. 95 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 04:32:33,391 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:32:33,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:33,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438101636] [2023-11-29 04:32:33,530 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:32:33,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270655759] [2023-11-29 04:32:33,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270655759] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:32:33,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:32:33,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:32:33,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129240473] [2023-11-29 04:32:33,531 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:32:33,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:32:33,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:33,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:32:33,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:32:33,532 INFO L87 Difference]: Start difference. First operand 2379 states and 3139 transitions. Second operand has 9 states, 8 states have (on average 19.125) internal successors, (153), 9 states have internal predecessors, (153), 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 04:32:34,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:32:34,557 INFO L93 Difference]: Finished difference Result 2386 states and 3139 transitions. [2023-11-29 04:32:34,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:32:34,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 19.125) internal successors, (153), 9 states have internal predecessors, (153), 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 237 [2023-11-29 04:32:34,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:32:34,560 INFO L225 Difference]: With dead ends: 2386 [2023-11-29 04:32:34,560 INFO L226 Difference]: Without dead ends: 2385 [2023-11-29 04:32:34,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:32:34,560 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 129 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:32:34,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 475 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:32:34,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2023-11-29 04:32:34,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 2379. [2023-11-29 04:32:34,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2379 states, 2128 states have (on average 1.2890037593984962) internal successors, (2743), 2179 states have internal predecessors, (2743), 197 states have call successors, (197), 2 states have call predecessors, (197), 2 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2023-11-29 04:32:34,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3137 transitions. [2023-11-29 04:32:34,925 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3137 transitions. Word has length 237 [2023-11-29 04:32:34,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:32:34,925 INFO L495 AbstractCegarLoop]: Abstraction has 2379 states and 3137 transitions. [2023-11-29 04:32:34,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 19.125) internal successors, (153), 9 states have internal predecessors, (153), 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 04:32:34,925 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3137 transitions. [2023-11-29 04:32:34,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-11-29 04:32:34,926 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:32:34,927 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:32:34,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Ended with exit code 0 [2023-11-29 04:32:35,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:35,127 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:32:35,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:35,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1935475711, now seen corresponding path program 1 times [2023-11-29 04:32:35,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:35,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703530707] [2023-11-29 04:32:35,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:35,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:35,137 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:32:35,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [844582749] [2023-11-29 04:32:35,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:35,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:35,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:32:35,139 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:32:35,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2023-11-29 04:32:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:32:35,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:32:35,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:32:35,361 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 88 proven. 53 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 04:32:35,361 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:32:35,498 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 88 proven. 53 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-29 04:32:35,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:35,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703530707] [2023-11-29 04:32:35,498 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:32:35,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844582749] [2023-11-29 04:32:35,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844582749] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:32:35,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:32:35,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2023-11-29 04:32:35,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742802493] [2023-11-29 04:32:35,499 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:32:35,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:32:35,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:35,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:32:35,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:32:35,500 INFO L87 Difference]: Start difference. First operand 2379 states and 3137 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-29 04:32:36,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:32:36,555 INFO L93 Difference]: Finished difference Result 3310 states and 4401 transitions. [2023-11-29 04:32:36,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:32:36,555 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 240 [2023-11-29 04:32:36,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:32:36,558 INFO L225 Difference]: With dead ends: 3310 [2023-11-29 04:32:36,558 INFO L226 Difference]: Without dead ends: 3281 [2023-11-29 04:32:36,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 474 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:32:36,559 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 681 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:32:36,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 1183 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:32:36,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2023-11-29 04:32:36,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 2412. [2023-11-29 04:32:36,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 2161 states have (on average 1.2919944470152707) internal successors, (2792), 2212 states have internal predecessors, (2792), 197 states have call successors, (197), 2 states have call predecessors, (197), 2 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2023-11-29 04:32:36,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3186 transitions. [2023-11-29 04:32:36,964 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3186 transitions. Word has length 240 [2023-11-29 04:32:36,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:32:36,964 INFO L495 AbstractCegarLoop]: Abstraction has 2412 states and 3186 transitions. [2023-11-29 04:32:36,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-29 04:32:36,964 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3186 transitions. [2023-11-29 04:32:36,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-29 04:32:36,965 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:32:36,966 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:32:36,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2023-11-29 04:32:37,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:37,166 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:32:37,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:37,166 INFO L85 PathProgramCache]: Analyzing trace with hash 2075788310, now seen corresponding path program 2 times [2023-11-29 04:32:37,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:37,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305597110] [2023-11-29 04:32:37,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:37,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:37,178 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:32:37,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [328395090] [2023-11-29 04:32:37,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:32:37,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:37,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:32:37,180 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:32:37,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2023-11-29 04:32:37,273 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:32:37,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:32:37,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:32:37,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:32:38,525 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 3 proven. 174 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-29 04:32:38,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:32:38,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:38,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305597110] [2023-11-29 04:32:38,641 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:32:38,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328395090] [2023-11-29 04:32:38,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328395090] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:32:38,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:32:38,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 04:32:38,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318849651] [2023-11-29 04:32:38,642 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:32:38,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 04:32:38,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:38,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 04:32:38,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:32:38,643 INFO L87 Difference]: Start difference. First operand 2412 states and 3186 transitions. Second operand has 15 states, 14 states have (on average 11.714285714285714) internal successors, (164), 14 states have internal predecessors, (164), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 04:32:42,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:32:42,322 INFO L93 Difference]: Finished difference Result 2784 states and 3734 transitions. [2023-11-29 04:32:42,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 04:32:42,323 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.714285714285714) internal successors, (164), 14 states have internal predecessors, (164), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 250 [2023-11-29 04:32:42,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:32:42,325 INFO L225 Difference]: With dead ends: 2784 [2023-11-29 04:32:42,325 INFO L226 Difference]: Without dead ends: 2783 [2023-11-29 04:32:42,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:32:42,326 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 467 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 2152 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 2168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:32:42,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1094 Invalid, 2168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2152 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 04:32:42,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2023-11-29 04:32:42,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 2419. [2023-11-29 04:32:42,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2419 states, 2167 states have (on average 1.291185971389017) internal successors, (2798), 2218 states have internal predecessors, (2798), 198 states have call successors, (198), 2 states have call predecessors, (198), 2 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2023-11-29 04:32:42,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2419 states to 2419 states and 3194 transitions. [2023-11-29 04:32:42,702 INFO L78 Accepts]: Start accepts. Automaton has 2419 states and 3194 transitions. Word has length 250 [2023-11-29 04:32:42,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:32:42,702 INFO L495 AbstractCegarLoop]: Abstraction has 2419 states and 3194 transitions. [2023-11-29 04:32:42,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.714285714285714) internal successors, (164), 14 states have internal predecessors, (164), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 04:32:42,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2419 states and 3194 transitions. [2023-11-29 04:32:42,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-29 04:32:42,703 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:32:42,703 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:32:42,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Forceful destruction successful, exit code 0 [2023-11-29 04:32:42,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2023-11-29 04:32:42,904 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:32:42,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:42,904 INFO L85 PathProgramCache]: Analyzing trace with hash -75071746, now seen corresponding path program 2 times [2023-11-29 04:32:42,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:42,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143591470] [2023-11-29 04:32:42,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:42,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:42,920 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:32:42,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [194273920] [2023-11-29 04:32:42,920 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:32:42,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:42,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:32:42,921 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:32:42,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2023-11-29 04:32:43,010 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:32:43,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:32:43,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:32:43,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:32:44,317 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 3 proven. 177 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-29 04:32:44,318 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:32:44,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:44,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143591470] [2023-11-29 04:32:44,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:32:44,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194273920] [2023-11-29 04:32:44,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194273920] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:32:44,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:32:44,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 04:32:44,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586447548] [2023-11-29 04:32:44,672 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:32:44,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 04:32:44,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:44,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 04:32:44,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:32:44,673 INFO L87 Difference]: Start difference. First operand 2419 states and 3194 transitions. Second operand has 15 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 04:32:47,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:32:47,717 INFO L93 Difference]: Finished difference Result 2783 states and 3733 transitions. [2023-11-29 04:32:47,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 04:32:47,717 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 251 [2023-11-29 04:32:47,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:32:47,720 INFO L225 Difference]: With dead ends: 2783 [2023-11-29 04:32:47,721 INFO L226 Difference]: Without dead ends: 2782 [2023-11-29 04:32:47,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:32:47,721 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 387 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 2180 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:32:47,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1318 Invalid, 2192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2180 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 04:32:47,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2023-11-29 04:32:48,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 2420. [2023-11-29 04:32:48,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 2168 states have (on average 1.2910516605166051) internal successors, (2799), 2219 states have internal predecessors, (2799), 198 states have call successors, (198), 2 states have call predecessors, (198), 2 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2023-11-29 04:32:48,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3195 transitions. [2023-11-29 04:32:48,124 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3195 transitions. Word has length 251 [2023-11-29 04:32:48,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:32:48,124 INFO L495 AbstractCegarLoop]: Abstraction has 2420 states and 3195 transitions. [2023-11-29 04:32:48,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 04:32:48,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3195 transitions. [2023-11-29 04:32:48,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-11-29 04:32:48,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:32:48,126 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:32:48,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Ended with exit code 0 [2023-11-29 04:32:48,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2023-11-29 04:32:48,326 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:32:48,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:48,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1967743256, now seen corresponding path program 1 times [2023-11-29 04:32:48,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:48,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414073937] [2023-11-29 04:32:48,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:48,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:48,341 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:32:48,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [148542374] [2023-11-29 04:32:48,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:48,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:48,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:32:48,342 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:32:48,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2023-11-29 04:32:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:32:48,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 04:32:48,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:32:49,558 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 3 proven. 180 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-29 04:32:49,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:32:49,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:49,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414073937] [2023-11-29 04:32:49,678 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:32:49,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148542374] [2023-11-29 04:32:49,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148542374] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:32:49,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:32:49,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:32:49,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021670047] [2023-11-29 04:32:49,679 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:32:49,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:32:49,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:49,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:32:49,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:32:49,679 INFO L87 Difference]: Start difference. First operand 2420 states and 3195 transitions. Second operand has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 13 states have internal predecessors, (166), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 04:32:53,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:32:53,331 INFO L93 Difference]: Finished difference Result 2770 states and 3717 transitions. [2023-11-29 04:32:53,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:32:53,332 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 13 states have internal predecessors, (166), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 252 [2023-11-29 04:32:53,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:32:53,334 INFO L225 Difference]: With dead ends: 2770 [2023-11-29 04:32:53,334 INFO L226 Difference]: Without dead ends: 2769 [2023-11-29 04:32:53,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=650, Unknown=0, NotChecked=0, Total=756 [2023-11-29 04:32:53,335 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 592 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 2511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:32:53,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 908 Invalid, 2511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 04:32:53,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2023-11-29 04:32:53,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2421. [2023-11-29 04:32:53,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2169 states have (on average 1.2909174734900877) internal successors, (2800), 2220 states have internal predecessors, (2800), 198 states have call successors, (198), 2 states have call predecessors, (198), 2 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2023-11-29 04:32:53,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 3196 transitions. [2023-11-29 04:32:53,718 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 3196 transitions. Word has length 252 [2023-11-29 04:32:53,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:32:53,718 INFO L495 AbstractCegarLoop]: Abstraction has 2421 states and 3196 transitions. [2023-11-29 04:32:53,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.76923076923077) internal successors, (166), 13 states have internal predecessors, (166), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 04:32:53,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 3196 transitions. [2023-11-29 04:32:53,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-11-29 04:32:53,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:32:53,720 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:32:53,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Ended with exit code 0 [2023-11-29 04:32:53,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2023-11-29 04:32:53,920 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:32:53,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:53,920 INFO L85 PathProgramCache]: Analyzing trace with hash 870498880, now seen corresponding path program 1 times [2023-11-29 04:32:53,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:53,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728581280] [2023-11-29 04:32:53,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:53,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:53,930 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:32:53,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [787112459] [2023-11-29 04:32:53,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:53,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:53,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:32:53,931 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:32:53,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2023-11-29 04:32:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:32:54,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 04:32:54,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:32:55,131 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 3 proven. 183 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-29 04:32:55,131 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:32:55,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:55,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728581280] [2023-11-29 04:32:55,249 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:32:55,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787112459] [2023-11-29 04:32:55,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787112459] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:32:55,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:32:55,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:32:55,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337065624] [2023-11-29 04:32:55,250 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:32:55,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:32:55,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:55,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:32:55,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:32:55,251 INFO L87 Difference]: Start difference. First operand 2421 states and 3196 transitions. Second operand has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 13 states have internal predecessors, (167), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 04:32:58,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:32:58,537 INFO L93 Difference]: Finished difference Result 2769 states and 3716 transitions. [2023-11-29 04:32:58,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:32:58,538 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 13 states have internal predecessors, (167), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 253 [2023-11-29 04:32:58,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:32:58,540 INFO L225 Difference]: With dead ends: 2769 [2023-11-29 04:32:58,540 INFO L226 Difference]: Without dead ends: 2768 [2023-11-29 04:32:58,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=645, Unknown=0, NotChecked=0, Total=756 [2023-11-29 04:32:58,541 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 584 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 2294 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 2334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:32:58,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 860 Invalid, 2334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2294 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 04:32:58,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2768 states. [2023-11-29 04:32:58,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2768 to 2422. [2023-11-29 04:32:58,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2422 states, 2170 states have (on average 1.290783410138249) internal successors, (2801), 2221 states have internal predecessors, (2801), 198 states have call successors, (198), 2 states have call predecessors, (198), 2 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2023-11-29 04:32:58,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3197 transitions. [2023-11-29 04:32:58,934 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3197 transitions. Word has length 253 [2023-11-29 04:32:58,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:32:58,934 INFO L495 AbstractCegarLoop]: Abstraction has 2422 states and 3197 transitions. [2023-11-29 04:32:58,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 13 states have internal predecessors, (167), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 04:32:58,934 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3197 transitions. [2023-11-29 04:32:58,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-11-29 04:32:58,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:32:58,935 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:32:58,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Forceful destruction successful, exit code 0 [2023-11-29 04:32:59,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2023-11-29 04:32:59,135 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:32:59,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:59,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1215661594, now seen corresponding path program 2 times [2023-11-29 04:32:59,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:59,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228147261] [2023-11-29 04:32:59,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:59,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:59,146 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:32:59,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1811063214] [2023-11-29 04:32:59,146 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:32:59,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:59,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:32:59,147 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:32:59,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2023-11-29 04:32:59,242 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:32:59,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:32:59,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 04:32:59,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:33:05,595 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 30 proven. 180 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2023-11-29 04:33:05,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:33:06,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:33:06,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228147261] [2023-11-29 04:33:06,880 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:33:06,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811063214] [2023-11-29 04:33:06,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811063214] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:33:06,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:33:06,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 04:33:06,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717639305] [2023-11-29 04:33:06,881 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:33:06,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:33:06,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:33:06,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:33:06,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:33:06,882 INFO L87 Difference]: Start difference. First operand 2422 states and 3197 transitions. Second operand has 14 states, 13 states have (on average 12.923076923076923) internal successors, (168), 14 states have internal predecessors, (168), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 04:33:19,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:33:24,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.79s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:33:39,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:33:39,213 INFO L93 Difference]: Finished difference Result 2768 states and 3715 transitions. [2023-11-29 04:33:39,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:33:39,214 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.923076923076923) internal successors, (168), 14 states have internal predecessors, (168), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 254 [2023-11-29 04:33:39,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:33:39,216 INFO L225 Difference]: With dead ends: 2768 [2023-11-29 04:33:39,216 INFO L226 Difference]: Without dead ends: 2767 [2023-11-29 04:33:39,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2023-11-29 04:33:39,217 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 292 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 2784 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 2796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:33:39,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 1149 Invalid, 2796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2784 Invalid, 0 Unknown, 0 Unchecked, 30.0s Time] [2023-11-29 04:33:39,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2023-11-29 04:33:39,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 2734. [2023-11-29 04:33:39,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2734 states, 2455 states have (on average 1.3262729124236252) internal successors, (3256), 2506 states have internal predecessors, (3256), 225 states have call successors, (225), 2 states have call predecessors, (225), 2 states have return successors, (225), 225 states have call predecessors, (225), 225 states have call successors, (225) [2023-11-29 04:33:39,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2734 states to 2734 states and 3706 transitions. [2023-11-29 04:33:39,652 INFO L78 Accepts]: Start accepts. Automaton has 2734 states and 3706 transitions. Word has length 254 [2023-11-29 04:33:39,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:33:39,652 INFO L495 AbstractCegarLoop]: Abstraction has 2734 states and 3706 transitions. [2023-11-29 04:33:39,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.923076923076923) internal successors, (168), 14 states have internal predecessors, (168), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 04:33:39,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2734 states and 3706 transitions. [2023-11-29 04:33:39,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-11-29 04:33:39,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:33:39,653 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:33:39,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Forceful destruction successful, exit code 0 [2023-11-29 04:33:39,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:33:39,854 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:33:39,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:33:39,854 INFO L85 PathProgramCache]: Analyzing trace with hash -969196158, now seen corresponding path program 1 times [2023-11-29 04:33:39,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:33:39,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364332561] [2023-11-29 04:33:39,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:39,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:33:39,868 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:33:39,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [858584931] [2023-11-29 04:33:39,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:39,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:33:39,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:33:39,869 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:33:39,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2023-11-29 04:33:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:39,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-29 04:33:39,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:33:44,669 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 9 proven. 177 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-11-29 04:33:44,669 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:33:45,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:33:45,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364332561] [2023-11-29 04:33:45,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:33:45,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858584931] [2023-11-29 04:33:45,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858584931] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:33:45,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:33:45,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 04:33:45,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914749366] [2023-11-29 04:33:45,216 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:33:45,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:33:45,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:33:45,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:33:45,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2023-11-29 04:33:45,217 INFO L87 Difference]: Start difference. First operand 2734 states and 3706 transitions. Second operand has 17 states, 16 states have (on average 8.4375) internal successors, (135), 16 states have internal predecessors, (135), 7 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-29 04:33:50,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:33:50,539 INFO L93 Difference]: Finished difference Result 3031 states and 4113 transitions. [2023-11-29 04:33:50,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 04:33:50,539 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 8.4375) internal successors, (135), 16 states have internal predecessors, (135), 7 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 255 [2023-11-29 04:33:50,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:33:50,549 INFO L225 Difference]: With dead ends: 3031 [2023-11-29 04:33:50,549 INFO L226 Difference]: Without dead ends: 3022 [2023-11-29 04:33:50,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=132, Invalid=860, Unknown=0, NotChecked=0, Total=992 [2023-11-29 04:33:50,549 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 449 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 2646 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 2662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:33:50,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 609 Invalid, 2662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2646 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-29 04:33:50,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3022 states. [2023-11-29 04:33:51,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3022 to 2980. [2023-11-29 04:33:51,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2680 states have (on average 1.3406716417910447) internal successors, (3593), 2731 states have internal predecessors, (3593), 246 states have call successors, (246), 2 states have call predecessors, (246), 2 states have return successors, (246), 246 states have call predecessors, (246), 246 states have call successors, (246) [2023-11-29 04:33:51,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 4085 transitions. [2023-11-29 04:33:51,016 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 4085 transitions. Word has length 255 [2023-11-29 04:33:51,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:33:51,016 INFO L495 AbstractCegarLoop]: Abstraction has 2980 states and 4085 transitions. [2023-11-29 04:33:51,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 8.4375) internal successors, (135), 16 states have internal predecessors, (135), 7 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-29 04:33:51,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 4085 transitions. [2023-11-29 04:33:51,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-11-29 04:33:51,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:33:51,017 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:33:51,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Ended with exit code 0 [2023-11-29 04:33:51,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2023-11-29 04:33:51,218 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:33:51,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:33:51,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1524259536, now seen corresponding path program 1 times [2023-11-29 04:33:51,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:33:51,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230344502] [2023-11-29 04:33:51,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:51,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:33:51,231 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:33:51,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [874422144] [2023-11-29 04:33:51,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:51,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:33:51,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:33:51,232 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:33:51,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2023-11-29 04:33:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:51,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 04:33:51,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:33:52,889 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 3 proven. 195 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-11-29 04:33:52,889 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:33:53,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:33:53,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230344502] [2023-11-29 04:33:53,190 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:33:53,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874422144] [2023-11-29 04:33:53,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874422144] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:33:53,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:33:53,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 04:33:53,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354050788] [2023-11-29 04:33:53,191 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:33:53,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 04:33:53,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:33:53,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 04:33:53,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:33:53,191 INFO L87 Difference]: Start difference. First operand 2980 states and 4085 transitions. Second operand has 16 states, 15 states have (on average 11.333333333333334) internal successors, (170), 15 states have internal predecessors, (170), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 04:33:56,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:33:56,327 INFO L93 Difference]: Finished difference Result 3024 states and 4102 transitions. [2023-11-29 04:33:56,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:33:56,328 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 11.333333333333334) internal successors, (170), 15 states have internal predecessors, (170), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 261 [2023-11-29 04:33:56,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:33:56,330 INFO L225 Difference]: With dead ends: 3024 [2023-11-29 04:33:56,330 INFO L226 Difference]: Without dead ends: 3022 [2023-11-29 04:33:56,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=130, Invalid=862, Unknown=0, NotChecked=0, Total=992 [2023-11-29 04:33:56,331 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 596 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 3255 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 3296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 3255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:33:56,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 913 Invalid, 3296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 3255 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 04:33:56,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3022 states. [2023-11-29 04:33:56,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3022 to 2980. [2023-11-29 04:33:56,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2680 states have (on average 1.3354477611940299) internal successors, (3579), 2731 states have internal predecessors, (3579), 246 states have call successors, (246), 2 states have call predecessors, (246), 2 states have return successors, (246), 246 states have call predecessors, (246), 246 states have call successors, (246) [2023-11-29 04:33:56,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 4071 transitions. [2023-11-29 04:33:56,808 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 4071 transitions. Word has length 261 [2023-11-29 04:33:56,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:33:56,809 INFO L495 AbstractCegarLoop]: Abstraction has 2980 states and 4071 transitions. [2023-11-29 04:33:56,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 11.333333333333334) internal successors, (170), 15 states have internal predecessors, (170), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 04:33:56,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 4071 transitions. [2023-11-29 04:33:56,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2023-11-29 04:33:56,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:33:56,810 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:33:56,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Ended with exit code 0 [2023-11-29 04:33:57,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106,108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:33:57,011 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:33:57,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:33:57,011 INFO L85 PathProgramCache]: Analyzing trace with hash 7405457, now seen corresponding path program 1 times [2023-11-29 04:33:57,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:33:57,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658404824] [2023-11-29 04:33:57,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:57,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:33:57,022 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:33:57,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [188479371] [2023-11-29 04:33:57,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:33:57,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:33:57,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:33:57,023 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:33:57,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2023-11-29 04:33:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:33:57,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 04:33:57,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:33:59,258 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 3 proven. 198 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-11-29 04:33:59,258 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:33:59,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:33:59,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658404824] [2023-11-29 04:33:59,641 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:33:59,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188479371] [2023-11-29 04:33:59,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188479371] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:33:59,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:33:59,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 04:33:59,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134375033] [2023-11-29 04:33:59,641 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:33:59,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 04:33:59,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:33:59,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 04:33:59,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:33:59,642 INFO L87 Difference]: Start difference. First operand 2980 states and 4071 transitions. Second operand has 16 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 04:34:03,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:03,745 INFO L93 Difference]: Finished difference Result 3022 states and 4088 transitions. [2023-11-29 04:34:03,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:34:03,745 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 262 [2023-11-29 04:34:03,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:03,756 INFO L225 Difference]: With dead ends: 3022 [2023-11-29 04:34:03,756 INFO L226 Difference]: Without dead ends: 3020 [2023-11-29 04:34:03,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=130, Invalid=862, Unknown=0, NotChecked=0, Total=992 [2023-11-29 04:34:03,757 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 584 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 3166 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 3205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:03,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 903 Invalid, 3205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 3166 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 04:34:03,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2023-11-29 04:34:04,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 2980. [2023-11-29 04:34:04,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2680 states have (on average 1.330223880597015) internal successors, (3565), 2731 states have internal predecessors, (3565), 246 states have call successors, (246), 2 states have call predecessors, (246), 2 states have return successors, (246), 246 states have call predecessors, (246), 246 states have call successors, (246) [2023-11-29 04:34:04,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 4057 transitions. [2023-11-29 04:34:04,278 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 4057 transitions. Word has length 262 [2023-11-29 04:34:04,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:04,279 INFO L495 AbstractCegarLoop]: Abstraction has 2980 states and 4057 transitions. [2023-11-29 04:34:04,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 11.4) internal successors, (171), 15 states have internal predecessors, (171), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 04:34:04,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 4057 transitions. [2023-11-29 04:34:04,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2023-11-29 04:34:04,280 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:04,280 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:34:04,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Ended with exit code 0 [2023-11-29 04:34:04,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107,109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:04,480 INFO L420 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:34:04,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:04,481 INFO L85 PathProgramCache]: Analyzing trace with hash 229569266, now seen corresponding path program 1 times [2023-11-29 04:34:04,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:04,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614763468] [2023-11-29 04:34:04,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:04,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:04,491 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:04,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1731455726] [2023-11-29 04:34:04,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:04,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:04,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:04,492 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:04,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2023-11-29 04:34:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:04,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 04:34:04,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:06,330 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 3 proven. 201 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-11-29 04:34:06,330 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:14,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:14,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614763468] [2023-11-29 04:34:14,578 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:14,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731455726] [2023-11-29 04:34:14,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731455726] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:34:14,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:34:14,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 04:34:14,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059207225] [2023-11-29 04:34:14,578 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:14,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 04:34:14,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:14,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 04:34:14,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=304, Unknown=2, NotChecked=0, Total=380 [2023-11-29 04:34:14,579 INFO L87 Difference]: Start difference. First operand 2980 states and 4057 transitions. Second operand has 16 states, 15 states have (on average 11.466666666666667) internal successors, (172), 15 states have internal predecessors, (172), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 04:34:17,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:17,553 INFO L93 Difference]: Finished difference Result 3032 states and 4090 transitions. [2023-11-29 04:34:17,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 04:34:17,554 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 11.466666666666667) internal successors, (172), 15 states have internal predecessors, (172), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 263 [2023-11-29 04:34:17,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:17,557 INFO L225 Difference]: With dead ends: 3032 [2023-11-29 04:34:17,557 INFO L226 Difference]: Without dead ends: 3030 [2023-11-29 04:34:17,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=104, Invalid=446, Unknown=2, NotChecked=0, Total=552 [2023-11-29 04:34:17,558 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 438 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 3026 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 3041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:17,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1203 Invalid, 3041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3026 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 04:34:17,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2023-11-29 04:34:18,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2980. [2023-11-29 04:34:18,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2680 states have (on average 1.3294776119402985) internal successors, (3563), 2731 states have internal predecessors, (3563), 246 states have call successors, (246), 2 states have call predecessors, (246), 2 states have return successors, (246), 246 states have call predecessors, (246), 246 states have call successors, (246) [2023-11-29 04:34:18,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 4055 transitions. [2023-11-29 04:34:18,056 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 4055 transitions. Word has length 263 [2023-11-29 04:34:18,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:18,056 INFO L495 AbstractCegarLoop]: Abstraction has 2980 states and 4055 transitions. [2023-11-29 04:34:18,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 11.466666666666667) internal successors, (172), 15 states have internal predecessors, (172), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 04:34:18,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 4055 transitions. [2023-11-29 04:34:18,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-11-29 04:34:18,058 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:18,058 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:34:18,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Ended with exit code 0 [2023-11-29 04:34:18,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable108 [2023-11-29 04:34:18,258 INFO L420 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:34:18,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:18,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1572735764, now seen corresponding path program 1 times [2023-11-29 04:34:18,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:18,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197390864] [2023-11-29 04:34:18,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:18,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:18,271 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:18,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1631013630] [2023-11-29 04:34:18,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:18,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:18,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:18,272 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:18,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2023-11-29 04:34:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:18,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 04:34:18,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:20,434 INFO L134 CoverageAnalysis]: Checked inductivity of 619 backedges. 3 proven. 207 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-11-29 04:34:20,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:20,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:20,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197390864] [2023-11-29 04:34:20,492 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:20,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631013630] [2023-11-29 04:34:20,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631013630] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:34:20,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:34:20,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 04:34:20,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280172101] [2023-11-29 04:34:20,492 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:20,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 04:34:20,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:20,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 04:34:20,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:34:20,493 INFO L87 Difference]: Start difference. First operand 2980 states and 4055 transitions. Second operand has 18 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 04:34:27,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:27,191 INFO L93 Difference]: Finished difference Result 3416 states and 4625 transitions. [2023-11-29 04:34:27,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 04:34:27,192 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 265 [2023-11-29 04:34:27,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:27,195 INFO L225 Difference]: With dead ends: 3416 [2023-11-29 04:34:27,195 INFO L226 Difference]: Without dead ends: 3411 [2023-11-29 04:34:27,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650 [2023-11-29 04:34:27,196 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 516 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 3089 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 3110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:27,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 1036 Invalid, 3110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3089 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-29 04:34:27,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3411 states. [2023-11-29 04:34:27,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3411 to 3305. [2023-11-29 04:34:27,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3305 states, 2977 states have (on average 1.339267719180383) internal successors, (3987), 3028 states have internal predecessors, (3987), 274 states have call successors, (274), 2 states have call predecessors, (274), 2 states have return successors, (274), 274 states have call predecessors, (274), 274 states have call successors, (274) [2023-11-29 04:34:27,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 4535 transitions. [2023-11-29 04:34:27,728 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 4535 transitions. Word has length 265 [2023-11-29 04:34:27,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:27,729 INFO L495 AbstractCegarLoop]: Abstraction has 3305 states and 4535 transitions. [2023-11-29 04:34:27,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 04:34:27,729 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 4535 transitions. [2023-11-29 04:34:27,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-11-29 04:34:27,730 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:27,730 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:34:27,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Forceful destruction successful, exit code 0 [2023-11-29 04:34:27,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable109 [2023-11-29 04:34:27,930 INFO L420 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:34:27,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:27,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1510168533, now seen corresponding path program 1 times [2023-11-29 04:34:27,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:27,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126020774] [2023-11-29 04:34:27,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:27,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:27,941 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:27,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1654201411] [2023-11-29 04:34:27,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:27,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:27,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:27,942 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:27,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2023-11-29 04:34:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:34:28,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 04:34:28,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:32,314 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 3 proven. 210 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-11-29 04:34:32,315 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:32,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:32,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126020774] [2023-11-29 04:34:32,381 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:32,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654201411] [2023-11-29 04:34:32,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654201411] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:34:32,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:34:32,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 04:34:32,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611507164] [2023-11-29 04:34:32,381 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:32,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:34:32,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:32,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:34:32,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:34:32,382 INFO L87 Difference]: Start difference. First operand 3305 states and 4535 transitions. Second operand has 17 states, 16 states have (on average 10.9375) internal successors, (175), 16 states have internal predecessors, (175), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 04:34:39,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:39,657 INFO L93 Difference]: Finished difference Result 3342 states and 4552 transitions. [2023-11-29 04:34:39,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 04:34:39,657 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 10.9375) internal successors, (175), 16 states have internal predecessors, (175), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 266 [2023-11-29 04:34:39,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:39,660 INFO L225 Difference]: With dead ends: 3342 [2023-11-29 04:34:39,660 INFO L226 Difference]: Without dead ends: 3341 [2023-11-29 04:34:39,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2023-11-29 04:34:39,661 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 466 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 3089 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 3103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:39,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 781 Invalid, 3103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3089 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-11-29 04:34:39,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3341 states. [2023-11-29 04:34:40,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3341 to 3305. [2023-11-29 04:34:40,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3305 states, 2977 states have (on average 1.3369163587504198) internal successors, (3980), 3028 states have internal predecessors, (3980), 274 states have call successors, (274), 2 states have call predecessors, (274), 2 states have return successors, (274), 274 states have call predecessors, (274), 274 states have call successors, (274) [2023-11-29 04:34:40,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 4528 transitions. [2023-11-29 04:34:40,194 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 4528 transitions. Word has length 266 [2023-11-29 04:34:40,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:40,194 INFO L495 AbstractCegarLoop]: Abstraction has 3305 states and 4528 transitions. [2023-11-29 04:34:40,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 10.9375) internal successors, (175), 16 states have internal predecessors, (175), 7 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 04:34:40,194 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 4528 transitions. [2023-11-29 04:34:40,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-11-29 04:34:40,195 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:40,196 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:34:40,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Ended with exit code 0 [2023-11-29 04:34:40,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable110 [2023-11-29 04:34:40,396 INFO L420 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:34:40,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:40,396 INFO L85 PathProgramCache]: Analyzing trace with hash 977754495, now seen corresponding path program 2 times [2023-11-29 04:34:40,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:40,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504063168] [2023-11-29 04:34:40,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:40,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:40,408 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:40,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2124035564] [2023-11-29 04:34:40,408 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:34:40,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:40,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:40,409 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:40,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2023-11-29 04:34:40,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:34:40,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:34:40,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 04:34:40,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:41,469 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 15 proven. 201 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-11-29 04:34:41,469 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:46,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:46,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504063168] [2023-11-29 04:34:46,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:46,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124035564] [2023-11-29 04:34:46,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124035564] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:34:46,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:34:46,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:34:46,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111103369] [2023-11-29 04:34:46,793 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:46,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:34:46,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:46,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:34:46,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=245, Unknown=1, NotChecked=0, Total=306 [2023-11-29 04:34:46,793 INFO L87 Difference]: Start difference. First operand 3305 states and 4528 transitions. Second operand has 11 states, 10 states have (on average 17.1) internal successors, (171), 11 states have internal predecessors, (171), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 04:34:49,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:34:49,052 INFO L93 Difference]: Finished difference Result 3643 states and 4940 transitions. [2023-11-29 04:34:49,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:34:49,052 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 17.1) internal successors, (171), 11 states have internal predecessors, (171), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) Word has length 267 [2023-11-29 04:34:49,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:34:49,056 INFO L225 Difference]: With dead ends: 3643 [2023-11-29 04:34:49,056 INFO L226 Difference]: Without dead ends: 3642 [2023-11-29 04:34:49,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=64, Invalid=277, Unknown=1, NotChecked=0, Total=342 [2023-11-29 04:34:49,057 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 167 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:34:49,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 1222 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 04:34:49,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3642 states. [2023-11-29 04:34:49,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3642 to 3611. [2023-11-29 04:34:49,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3611 states, 3257 states have (on average 1.3229966226588885) internal successors, (4309), 3308 states have internal predecessors, (4309), 300 states have call successors, (300), 2 states have call predecessors, (300), 2 states have return successors, (300), 300 states have call predecessors, (300), 300 states have call successors, (300) [2023-11-29 04:34:49,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3611 states to 3611 states and 4909 transitions. [2023-11-29 04:34:49,663 INFO L78 Accepts]: Start accepts. Automaton has 3611 states and 4909 transitions. Word has length 267 [2023-11-29 04:34:49,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:34:49,663 INFO L495 AbstractCegarLoop]: Abstraction has 3611 states and 4909 transitions. [2023-11-29 04:34:49,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 17.1) internal successors, (171), 11 states have internal predecessors, (171), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 04:34:49,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3611 states and 4909 transitions. [2023-11-29 04:34:49,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-11-29 04:34:49,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:34:49,665 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:34:49,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Ended with exit code 0 [2023-11-29 04:34:49,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2023-11-29 04:34:49,865 INFO L420 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:34:49,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:34:49,865 INFO L85 PathProgramCache]: Analyzing trace with hash -975764479, now seen corresponding path program 2 times [2023-11-29 04:34:49,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:34:49,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750871377] [2023-11-29 04:34:49,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:34:49,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:34:49,878 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:34:49,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [378024546] [2023-11-29 04:34:49,878 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:34:49,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:34:49,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:34:49,879 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:34:49,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2023-11-29 04:34:49,973 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:34:49,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:34:49,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 04:34:49,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:34:55,728 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 44 proven. 163 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-29 04:34:55,729 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:34:55,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:34:55,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750871377] [2023-11-29 04:34:55,806 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:34:55,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378024546] [2023-11-29 04:34:55,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378024546] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:34:55,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:34:55,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 04:34:55,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942725134] [2023-11-29 04:34:55,807 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:34:55,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:34:55,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:34:55,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:34:55,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:34:55,808 INFO L87 Difference]: Start difference. First operand 3611 states and 4909 transitions. Second operand has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 04:35:19,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:35:19,997 INFO L93 Difference]: Finished difference Result 3639 states and 4921 transitions. [2023-11-29 04:35:19,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:35:19,998 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) Word has length 269 [2023-11-29 04:35:19,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:35:20,001 INFO L225 Difference]: With dead ends: 3639 [2023-11-29 04:35:20,001 INFO L226 Difference]: Without dead ends: 3637 [2023-11-29 04:35:20,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=108, Invalid=310, Unknown=2, NotChecked=0, Total=420 [2023-11-29 04:35:20,002 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 167 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 2193 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 2204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:35:20,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1125 Invalid, 2204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2193 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-29 04:35:20,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3637 states. [2023-11-29 04:35:20,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3637 to 3312. [2023-11-29 04:35:20,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3312 states, 2983 states have (on average 1.3318806570566544) internal successors, (3973), 3034 states have internal predecessors, (3973), 275 states have call successors, (275), 2 states have call predecessors, (275), 2 states have return successors, (275), 275 states have call predecessors, (275), 275 states have call successors, (275) [2023-11-29 04:35:20,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3312 states to 3312 states and 4523 transitions. [2023-11-29 04:35:20,551 INFO L78 Accepts]: Start accepts. Automaton has 3312 states and 4523 transitions. Word has length 269 [2023-11-29 04:35:20,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:35:20,551 INFO L495 AbstractCegarLoop]: Abstraction has 3312 states and 4523 transitions. [2023-11-29 04:35:20,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 04:35:20,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3312 states and 4523 transitions. [2023-11-29 04:35:20,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2023-11-29 04:35:20,553 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:35:20,553 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:35:20,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Ended with exit code 0 [2023-11-29 04:35:20,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2023-11-29 04:35:20,753 INFO L420 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2023-11-29 04:35:20,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:35:20,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2068456340, now seen corresponding path program 2 times [2023-11-29 04:35:20,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:35:20,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137588289] [2023-11-29 04:35:20,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:35:20,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:35:20,764 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:35:20,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1306645540] [2023-11-29 04:35:20,764 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:35:20,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:35:20,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:35:20,765 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:35:20,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa53699-4982-4a50-ac26-d39e6109e332/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Waiting until timeout for monitored process [2023-11-29 04:35:20,878 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:35:20,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:35:20,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-29 04:35:20,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:35:24,747 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 12 proven. 207 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-11-29 04:35:24,747 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:35:33,180 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 12 proven. 207 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-11-29 04:35:33,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:35:33,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137588289] [2023-11-29 04:35:33,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:35:33,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306645540] [2023-11-29 04:35:33,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306645540] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:35:33,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:35:33,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2023-11-29 04:35:33,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131180011] [2023-11-29 04:35:33,181 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:35:33,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-29 04:35:33,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:35:33,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-29 04:35:33,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=788, Unknown=0, NotChecked=0, Total=930 [2023-11-29 04:35:33,182 INFO L87 Difference]: Start difference. First operand 3312 states and 4523 transitions. Second operand has 31 states, 30 states have (on average 11.433333333333334) internal successors, (343), 31 states have internal predecessors, (343), 13 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (38), 11 states have call predecessors, (38), 13 states have call successors, (38) [2023-11-29 04:35:40,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:35:43,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:35:47,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:35:53,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:01,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:07,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:11,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:13,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:22,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:36:25,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.35s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:28,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:34,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:36:56,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0, 1] [2023-11-29 04:37:04,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:37:06,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:37:14,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]