./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/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_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/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_4dae6272-1a55-4ac5-a9cc-ec1aea159797/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 b0dc7e6cdf006545b97e616af165994b39a2e54c024b52d6607380c5e84ee914 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:18:17,375 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:18:17,436 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 01:18:17,442 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:18:17,442 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:18:17,465 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:18:17,465 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:18:17,466 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:18:17,466 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:18:17,467 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:18:17,468 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:18:17,468 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:18:17,469 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:18:17,469 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:18:17,470 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:18:17,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:18:17,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:18:17,471 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:18:17,472 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:18:17,472 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:18:17,473 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:18:17,474 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:18:17,474 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:18:17,474 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:18:17,475 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 01:18:17,475 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:18:17,476 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:18:17,476 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:18:17,476 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:18:17,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:18:17,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:18:17,484 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:18:17,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:18:17,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:18:17,486 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:18:17,486 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:18:17,486 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:18:17,486 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:18:17,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:18:17,487 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:18:17,487 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:18:17,487 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:18:17,487 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:18:17,488 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:18:17,488 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_4dae6272-1a55-4ac5-a9cc-ec1aea159797/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0dc7e6cdf006545b97e616af165994b39a2e54c024b52d6607380c5e84ee914 [2023-11-29 01:18:17,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:18:17,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:18:17,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:18:17,711 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:18:17,712 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:18:17,713 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound20.c [2023-11-29 01:18:20,529 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:18:20,753 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:18:20,753 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound20.c [2023-11-29 01:18:20,763 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/data/8f3b55aad/cd1935e6a2024485831c0bee5c39db9d/FLAGf87d43d8b [2023-11-29 01:18:20,781 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/data/8f3b55aad/cd1935e6a2024485831c0bee5c39db9d [2023-11-29 01:18:20,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:18:20,786 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:18:20,788 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:18:20,788 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:18:20,793 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:18:20,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:18:20" (1/1) ... [2023-11-29 01:18:20,795 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58fd6492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:18:20, skipping insertion in model container [2023-11-29 01:18:20,796 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:18:20" (1/1) ... [2023-11-29 01:18:20,823 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:18:21,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:18:21,040 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:18:21,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:18:21,083 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:18:21,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:18:21 WrapperNode [2023-11-29 01:18:21,084 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:18:21,085 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:18:21,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:18:21,085 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:18:21,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:18:21" (1/1) ... [2023-11-29 01:18:21,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:18:21" (1/1) ... [2023-11-29 01:18:21,135 INFO L138 Inliner]: procedures = 14, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 103 [2023-11-29 01:18:21,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:18:21,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:18:21,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:18:21,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:18:21,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:18:21" (1/1) ... [2023-11-29 01:18:21,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:18:21" (1/1) ... [2023-11-29 01:18:21,155 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:18:21" (1/1) ... [2023-11-29 01:18:21,172 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2023-11-29 01:18:21,172 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:18:21" (1/1) ... [2023-11-29 01:18:21,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:18:21" (1/1) ... [2023-11-29 01:18:21,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:18:21" (1/1) ... [2023-11-29 01:18:21,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:18:21" (1/1) ... [2023-11-29 01:18:21,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:18:21" (1/1) ... [2023-11-29 01:18:21,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:18:21" (1/1) ... [2023-11-29 01:18:21,190 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:18:21,191 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:18:21,191 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:18:21,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:18:21,192 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:18:21" (1/1) ... [2023-11-29 01:18:21,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:18:21,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:21,231 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:18:21,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:18:21,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:18:21,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:18:21,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:18:21,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:18:21,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:18:21,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 01:18:21,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 01:18:21,362 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:18:21,365 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:18:21,699 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:18:21,733 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:18:21,734 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 01:18:21,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:18:21 BoogieIcfgContainer [2023-11-29 01:18:21,735 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:18:21,737 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:18:21,738 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:18:21,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:18:21,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:18:20" (1/3) ... [2023-11-29 01:18:21,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a53c35d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:18:21, skipping insertion in model container [2023-11-29 01:18:21,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:18:21" (2/3) ... [2023-11-29 01:18:21,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a53c35d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:18:21, skipping insertion in model container [2023-11-29 01:18:21,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:18:21" (3/3) ... [2023-11-29 01:18:21,746 INFO L112 eAbstractionObserver]: Analyzing ICFG hard2_unwindbound20.c [2023-11-29 01:18:21,769 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:18:21,770 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-29 01:18:21,826 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:18:21,833 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;@6e6cb0dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:18:21,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-29 01:18:21,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 40 states have (on average 1.9) internal successors, (76), 68 states have internal predecessors, (76), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 01:18:21,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 01:18:21,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:21,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 01:18:21,847 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:21,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:21,853 INFO L85 PathProgramCache]: Analyzing trace with hash 163595, now seen corresponding path program 1 times [2023-11-29 01:18:21,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:21,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78279831] [2023-11-29 01:18:21,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:21,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:22,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:18:22,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:22,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78279831] [2023-11-29 01:18:22,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78279831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:22,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:22,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:18:22,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144313069] [2023-11-29 01:18:22,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:22,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:18:22,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:22,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:18:22,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:18:22,135 INFO L87 Difference]: Start difference. First operand has 77 states, 40 states have (on average 1.9) internal successors, (76), 68 states have internal predecessors, (76), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:18:22,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:22,272 INFO L93 Difference]: Finished difference Result 157 states and 194 transitions. [2023-11-29 01:18:22,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:18:22,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 01:18:22,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:22,283 INFO L225 Difference]: With dead ends: 157 [2023-11-29 01:18:22,284 INFO L226 Difference]: Without dead ends: 77 [2023-11-29 01:18:22,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:18:22,292 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 4 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:22,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 239 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:18:22,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-29 01:18:22,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-29 01:18:22,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 43 states have (on average 1.744186046511628) internal successors, (75), 70 states have internal predecessors, (75), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 01:18:22,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2023-11-29 01:18:22,353 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 3 [2023-11-29 01:18:22,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:22,354 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2023-11-29 01:18:22,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:18:22,355 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2023-11-29 01:18:22,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 01:18:22,356 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:22,357 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:22,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:18:22,357 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:22,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:22,358 INFO L85 PathProgramCache]: Analyzing trace with hash -576103490, now seen corresponding path program 1 times [2023-11-29 01:18:22,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:22,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497003036] [2023-11-29 01:18:22,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:22,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:22,383 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:22,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [567879432] [2023-11-29 01:18:22,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:22,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:22,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:22,387 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:22,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:18:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:22,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:18:22,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:22,551 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:18:22,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:22,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:22,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497003036] [2023-11-29 01:18:22,552 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:22,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567879432] [2023-11-29 01:18:22,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567879432] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:22,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:22,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:18:22,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020662155] [2023-11-29 01:18:22,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:22,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:18:22,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:22,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:18:22,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:22,557 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:18:22,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:22,644 INFO L93 Difference]: Finished difference Result 171 states and 190 transitions. [2023-11-29 01:18:22,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:18:22,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-11-29 01:18:22,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:22,647 INFO L225 Difference]: With dead ends: 171 [2023-11-29 01:18:22,647 INFO L226 Difference]: Without dead ends: 118 [2023-11-29 01:18:22,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:22,650 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 36 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:22,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 121 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:22,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-29 01:18:22,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2023-11-29 01:18:22,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 61 states have (on average 1.721311475409836) internal successors, (105), 88 states have internal predecessors, (105), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:18:22,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2023-11-29 01:18:22,665 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 16 [2023-11-29 01:18:22,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:22,666 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2023-11-29 01:18:22,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:18:22,666 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2023-11-29 01:18:22,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 01:18:22,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:22,667 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:22,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:18:22,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:22,868 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:22,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:22,869 INFO L85 PathProgramCache]: Analyzing trace with hash -679338954, now seen corresponding path program 1 times [2023-11-29 01:18:22,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:22,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830294620] [2023-11-29 01:18:22,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:22,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:22,887 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:22,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1249426624] [2023-11-29 01:18:22,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:22,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:22,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:22,890 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:22,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:18:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:22,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:18:22,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:23,014 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:18:23,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:23,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:23,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830294620] [2023-11-29 01:18:23,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:23,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249426624] [2023-11-29 01:18:23,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249426624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:23,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:23,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:18:23,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627615047] [2023-11-29 01:18:23,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:23,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:18:23,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:23,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:18:23,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:23,018 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:18:23,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:23,106 INFO L93 Difference]: Finished difference Result 118 states and 132 transitions. [2023-11-29 01:18:23,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:18:23,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2023-11-29 01:18:23,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:23,109 INFO L225 Difference]: With dead ends: 118 [2023-11-29 01:18:23,109 INFO L226 Difference]: Without dead ends: 116 [2023-11-29 01:18:23,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:23,111 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 33 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:23,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 120 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:23,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-29 01:18:23,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 100. [2023-11-29 01:18:23,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 61 states have (on average 1.6885245901639345) internal successors, (103), 88 states have internal predecessors, (103), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:18:23,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 123 transitions. [2023-11-29 01:18:23,125 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 123 transitions. Word has length 17 [2023-11-29 01:18:23,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:23,125 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 123 transitions. [2023-11-29 01:18:23,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:18:23,126 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 123 transitions. [2023-11-29 01:18:23,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 01:18:23,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:23,127 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:23,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:18:23,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:23,328 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:23,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:23,329 INFO L85 PathProgramCache]: Analyzing trace with hash 117225432, now seen corresponding path program 1 times [2023-11-29 01:18:23,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:23,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730011305] [2023-11-29 01:18:23,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:23,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:23,344 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:23,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309780521] [2023-11-29 01:18:23,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:23,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:23,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:23,346 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:23,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:18:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:23,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:18:23,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:23,421 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:18:23,421 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:23,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:23,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730011305] [2023-11-29 01:18:23,422 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:23,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309780521] [2023-11-29 01:18:23,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309780521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:23,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:23,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:18:23,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059566860] [2023-11-29 01:18:23,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:23,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:18:23,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:23,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:18:23,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:23,424 INFO L87 Difference]: Start difference. First operand 100 states and 123 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:23,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:23,473 INFO L93 Difference]: Finished difference Result 132 states and 159 transitions. [2023-11-29 01:18:23,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:18:23,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2023-11-29 01:18:23,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:23,475 INFO L225 Difference]: With dead ends: 132 [2023-11-29 01:18:23,475 INFO L226 Difference]: Without dead ends: 130 [2023-11-29 01:18:23,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:23,477 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 42 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:23,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 103 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:18:23,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-29 01:18:23,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 113. [2023-11-29 01:18:23,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 73 states have (on average 1.6849315068493151) internal successors, (123), 99 states have internal predecessors, (123), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:18:23,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 147 transitions. [2023-11-29 01:18:23,487 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 147 transitions. Word has length 24 [2023-11-29 01:18:23,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:23,488 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 147 transitions. [2023-11-29 01:18:23,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:23,488 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 147 transitions. [2023-11-29 01:18:23,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 01:18:23,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:23,489 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:23,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 01:18:23,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:23,689 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:23,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:23,690 INFO L85 PathProgramCache]: Analyzing trace with hash -660980348, now seen corresponding path program 1 times [2023-11-29 01:18:23,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:23,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628037050] [2023-11-29 01:18:23,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:23,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:23,701 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:23,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [321561678] [2023-11-29 01:18:23,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:23,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:23,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:23,703 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:23,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 01:18:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:23,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:18:23,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:23,815 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:18:23,815 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:23,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:23,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628037050] [2023-11-29 01:18:23,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:23,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321561678] [2023-11-29 01:18:23,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321561678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:23,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:23,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:18:23,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294981742] [2023-11-29 01:18:23,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:23,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:18:23,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:23,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:18:23,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:18:23,818 INFO L87 Difference]: Start difference. First operand 113 states and 147 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:23,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:23,888 INFO L93 Difference]: Finished difference Result 113 states and 147 transitions. [2023-11-29 01:18:23,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:18:23,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2023-11-29 01:18:23,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:23,891 INFO L225 Difference]: With dead ends: 113 [2023-11-29 01:18:23,891 INFO L226 Difference]: Without dead ends: 111 [2023-11-29 01:18:23,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:18:23,893 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 125 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:23,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 195 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:18:23,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-29 01:18:23,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-11-29 01:18:23,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 73 states have (on average 1.63013698630137) internal successors, (119), 97 states have internal predecessors, (119), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:18:23,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 143 transitions. [2023-11-29 01:18:23,906 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 143 transitions. Word has length 25 [2023-11-29 01:18:23,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:23,906 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 143 transitions. [2023-11-29 01:18:23,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:23,907 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 143 transitions. [2023-11-29 01:18:23,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 01:18:23,907 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:23,908 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:23,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 01:18:24,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:24,109 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:24,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:24,109 INFO L85 PathProgramCache]: Analyzing trace with hash -660978842, now seen corresponding path program 1 times [2023-11-29 01:18:24,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:24,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380541089] [2023-11-29 01:18:24,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:24,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:24,121 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:24,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161905420] [2023-11-29 01:18:24,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:24,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:24,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:24,123 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:24,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 01:18:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:24,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:18:24,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:24,207 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:18:24,207 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:24,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:24,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380541089] [2023-11-29 01:18:24,208 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:24,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161905420] [2023-11-29 01:18:24,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161905420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:24,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:24,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:18:24,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678388994] [2023-11-29 01:18:24,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:24,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:18:24,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:24,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:18:24,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:24,210 INFO L87 Difference]: Start difference. First operand 111 states and 143 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:24,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:24,257 INFO L93 Difference]: Finished difference Result 125 states and 150 transitions. [2023-11-29 01:18:24,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:18:24,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2023-11-29 01:18:24,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:24,258 INFO L225 Difference]: With dead ends: 125 [2023-11-29 01:18:24,259 INFO L226 Difference]: Without dead ends: 124 [2023-11-29 01:18:24,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:24,260 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 25 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:24,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 121 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:18:24,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-29 01:18:24,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 111. [2023-11-29 01:18:24,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 73 states have (on average 1.6164383561643836) internal successors, (118), 97 states have internal predecessors, (118), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:18:24,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 142 transitions. [2023-11-29 01:18:24,273 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 142 transitions. Word has length 25 [2023-11-29 01:18:24,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:24,273 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 142 transitions. [2023-11-29 01:18:24,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:24,274 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 142 transitions. [2023-11-29 01:18:24,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 01:18:24,280 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:24,280 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:24,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 01:18:24,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:24,481 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:24,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:24,481 INFO L85 PathProgramCache]: Analyzing trace with hash 984445769, now seen corresponding path program 1 times [2023-11-29 01:18:24,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:24,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818488183] [2023-11-29 01:18:24,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:24,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:24,495 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:24,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1457681991] [2023-11-29 01:18:24,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:24,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:24,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:24,497 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:24,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 01:18:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:24,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:18:24,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:24,603 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:18:24,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:24,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:24,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818488183] [2023-11-29 01:18:24,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:24,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457681991] [2023-11-29 01:18:24,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457681991] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:24,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:24,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:18:24,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88370541] [2023-11-29 01:18:24,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:24,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:18:24,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:24,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:18:24,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:18:24,606 INFO L87 Difference]: Start difference. First operand 111 states and 142 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:24,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:24,678 INFO L93 Difference]: Finished difference Result 128 states and 156 transitions. [2023-11-29 01:18:24,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:18:24,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2023-11-29 01:18:24,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:24,680 INFO L225 Difference]: With dead ends: 128 [2023-11-29 01:18:24,680 INFO L226 Difference]: Without dead ends: 119 [2023-11-29 01:18:24,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:18:24,681 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 16 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:24,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 288 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:18:24,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-29 01:18:24,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2023-11-29 01:18:24,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 76 states have (on average 1.5657894736842106) internal successors, (119), 100 states have internal predecessors, (119), 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 01:18:24,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 143 transitions. [2023-11-29 01:18:24,696 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 143 transitions. Word has length 26 [2023-11-29 01:18:24,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:24,697 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 143 transitions. [2023-11-29 01:18:24,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:24,698 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 143 transitions. [2023-11-29 01:18:24,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 01:18:24,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:24,699 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:24,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 01:18:24,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:24,900 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:24,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:24,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1159581515, now seen corresponding path program 1 times [2023-11-29 01:18:24,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:24,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505963902] [2023-11-29 01:18:24,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:24,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:24,912 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:24,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [375378945] [2023-11-29 01:18:24,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:24,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:24,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:24,914 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:24,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 01:18:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:24,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:18:24,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:25,053 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:18:25,054 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:25,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:25,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505963902] [2023-11-29 01:18:25,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:25,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375378945] [2023-11-29 01:18:25,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375378945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:25,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:25,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:18:25,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129041167] [2023-11-29 01:18:25,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:25,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:18:25,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:25,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:18:25,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:25,056 INFO L87 Difference]: Start difference. First operand 115 states and 143 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:25,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:25,127 INFO L93 Difference]: Finished difference Result 160 states and 192 transitions. [2023-11-29 01:18:25,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:18:25,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2023-11-29 01:18:25,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:25,129 INFO L225 Difference]: With dead ends: 160 [2023-11-29 01:18:25,129 INFO L226 Difference]: Without dead ends: 159 [2023-11-29 01:18:25,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:25,130 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 51 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:25,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 83 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:25,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-29 01:18:25,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 133. [2023-11-29 01:18:25,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 92 states have (on average 1.5869565217391304) internal successors, (146), 116 states have internal predecessors, (146), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:18:25,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 174 transitions. [2023-11-29 01:18:25,146 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 174 transitions. Word has length 28 [2023-11-29 01:18:25,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:25,147 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 174 transitions. [2023-11-29 01:18:25,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:25,147 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 174 transitions. [2023-11-29 01:18:25,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 01:18:25,148 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:25,148 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:25,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 01:18:25,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 01:18:25,353 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:25,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:25,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1587288683, now seen corresponding path program 1 times [2023-11-29 01:18:25,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:25,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202668711] [2023-11-29 01:18:25,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:25,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:25,364 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:25,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1575915668] [2023-11-29 01:18:25,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:25,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:25,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:25,366 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:25,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 01:18:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:25,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:18:25,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:25,478 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:18:25,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:25,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:25,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202668711] [2023-11-29 01:18:25,479 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:25,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575915668] [2023-11-29 01:18:25,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575915668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:25,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:25,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:18:25,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447658534] [2023-11-29 01:18:25,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:25,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:18:25,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:25,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:18:25,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:25,482 INFO L87 Difference]: Start difference. First operand 133 states and 174 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:25,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:25,537 INFO L93 Difference]: Finished difference Result 159 states and 189 transitions. [2023-11-29 01:18:25,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:18:25,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2023-11-29 01:18:25,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:25,540 INFO L225 Difference]: With dead ends: 159 [2023-11-29 01:18:25,540 INFO L226 Difference]: Without dead ends: 158 [2023-11-29 01:18:25,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:25,541 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 49 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:25,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 84 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:18:25,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-29 01:18:25,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 133. [2023-11-29 01:18:25,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 92 states have (on average 1.5543478260869565) internal successors, (143), 116 states have internal predecessors, (143), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:18:25,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 171 transitions. [2023-11-29 01:18:25,554 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 171 transitions. Word has length 29 [2023-11-29 01:18:25,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:25,555 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 171 transitions. [2023-11-29 01:18:25,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:25,555 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 171 transitions. [2023-11-29 01:18:25,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 01:18:25,556 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:25,556 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:25,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 01:18:25,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:25,760 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:25,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:25,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1961309005, now seen corresponding path program 1 times [2023-11-29 01:18:25,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:25,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983750969] [2023-11-29 01:18:25,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:25,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:25,773 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:25,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370568245] [2023-11-29 01:18:25,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:25,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:25,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:25,775 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:25,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 01:18:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:25,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:18:25,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:25,953 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:18:25,953 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:25,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:25,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983750969] [2023-11-29 01:18:25,953 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:25,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370568245] [2023-11-29 01:18:25,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370568245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:25,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:25,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:18:25,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78320203] [2023-11-29 01:18:25,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:25,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:18:25,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:25,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:18:25,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:25,956 INFO L87 Difference]: Start difference. First operand 133 states and 171 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:26,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:26,028 INFO L93 Difference]: Finished difference Result 154 states and 182 transitions. [2023-11-29 01:18:26,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:18:26,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2023-11-29 01:18:26,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:26,030 INFO L225 Difference]: With dead ends: 154 [2023-11-29 01:18:26,030 INFO L226 Difference]: Without dead ends: 150 [2023-11-29 01:18:26,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:26,032 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 40 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:26,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 90 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:26,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-29 01:18:26,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 136. [2023-11-29 01:18:26,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 95 states have (on average 1.5052631578947369) internal successors, (143), 119 states have internal predecessors, (143), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:18:26,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 171 transitions. [2023-11-29 01:18:26,048 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 171 transitions. Word has length 30 [2023-11-29 01:18:26,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:26,048 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 171 transitions. [2023-11-29 01:18:26,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:26,049 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 171 transitions. [2023-11-29 01:18:26,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 01:18:26,050 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:26,050 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:26,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 01:18:26,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 01:18:26,253 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:26,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:26,254 INFO L85 PathProgramCache]: Analyzing trace with hash 2114608351, now seen corresponding path program 1 times [2023-11-29 01:18:26,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:26,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208215385] [2023-11-29 01:18:26,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:26,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:26,265 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:26,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1183036720] [2023-11-29 01:18:26,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:26,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:26,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:26,267 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:26,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 01:18:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:26,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:18:26,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:26,375 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:18:26,375 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:26,449 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:18:26,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:26,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208215385] [2023-11-29 01:18:26,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:26,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183036720] [2023-11-29 01:18:26,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183036720] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:18:26,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:18:26,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-29 01:18:26,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993111755] [2023-11-29 01:18:26,451 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:26,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:18:26,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:26,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:18:26,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:18:26,453 INFO L87 Difference]: Start difference. First operand 136 states and 171 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:18:26,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:26,634 INFO L93 Difference]: Finished difference Result 278 states and 347 transitions. [2023-11-29 01:18:26,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:18:26,635 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 30 [2023-11-29 01:18:26,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:26,637 INFO L225 Difference]: With dead ends: 278 [2023-11-29 01:18:26,637 INFO L226 Difference]: Without dead ends: 193 [2023-11-29 01:18:26,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:18:26,639 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 61 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:26,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 410 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:26,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-29 01:18:26,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 175. [2023-11-29 01:18:26,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 126 states have (on average 1.4841269841269842) internal successors, (187), 150 states have internal predecessors, (187), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:18:26,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 227 transitions. [2023-11-29 01:18:26,656 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 227 transitions. Word has length 30 [2023-11-29 01:18:26,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:26,656 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 227 transitions. [2023-11-29 01:18:26,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 10 states have internal predecessors, (36), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:18:26,656 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 227 transitions. [2023-11-29 01:18:26,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 01:18:26,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:26,657 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-29 01:18:26,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 01:18:26,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 01:18:26,858 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:26,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:26,858 INFO L85 PathProgramCache]: Analyzing trace with hash 671037101, now seen corresponding path program 1 times [2023-11-29 01:18:26,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:26,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915260853] [2023-11-29 01:18:26,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:26,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:26,868 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:26,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1352939131] [2023-11-29 01:18:26,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:26,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:26,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:26,870 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:26,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 01:18:26,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:26,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:18:26,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:27,022 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:18:27,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:27,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:27,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915260853] [2023-11-29 01:18:27,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:27,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352939131] [2023-11-29 01:18:27,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352939131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:27,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:27,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:18:27,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531995712] [2023-11-29 01:18:27,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:27,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:18:27,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:27,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:18:27,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:18:27,025 INFO L87 Difference]: Start difference. First operand 175 states and 227 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:27,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:27,152 INFO L93 Difference]: Finished difference Result 181 states and 231 transitions. [2023-11-29 01:18:27,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:18:27,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2023-11-29 01:18:27,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:27,155 INFO L225 Difference]: With dead ends: 181 [2023-11-29 01:18:27,155 INFO L226 Difference]: Without dead ends: 180 [2023-11-29 01:18:27,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:18:27,156 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 34 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:27,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 149 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:27,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-29 01:18:27,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 175. [2023-11-29 01:18:27,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 126 states have (on average 1.4761904761904763) internal successors, (186), 150 states have internal predecessors, (186), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:18:27,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 226 transitions. [2023-11-29 01:18:27,173 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 226 transitions. Word has length 31 [2023-11-29 01:18:27,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:27,173 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 226 transitions. [2023-11-29 01:18:27,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:27,174 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 226 transitions. [2023-11-29 01:18:27,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 01:18:27,175 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:27,175 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:27,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 01:18:27,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 01:18:27,382 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:27,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:27,382 INFO L85 PathProgramCache]: Analyzing trace with hash -177943393, now seen corresponding path program 1 times [2023-11-29 01:18:27,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:27,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635734221] [2023-11-29 01:18:27,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:27,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:27,391 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:27,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [134561281] [2023-11-29 01:18:27,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:27,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:27,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:27,393 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:27,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 01:18:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:27,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:18:27,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:27,519 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 01:18:27,519 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:27,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:27,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635734221] [2023-11-29 01:18:27,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:27,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134561281] [2023-11-29 01:18:27,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134561281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:27,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:27,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:18:27,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550020520] [2023-11-29 01:18:27,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:27,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:18:27,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:27,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:18:27,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:18:27,521 INFO L87 Difference]: Start difference. First operand 175 states and 226 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:18:27,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:27,594 INFO L93 Difference]: Finished difference Result 187 states and 234 transitions. [2023-11-29 01:18:27,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:18:27,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2023-11-29 01:18:27,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:27,596 INFO L225 Difference]: With dead ends: 187 [2023-11-29 01:18:27,596 INFO L226 Difference]: Without dead ends: 178 [2023-11-29 01:18:27,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:18:27,597 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 90 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:27,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 113 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:27,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-11-29 01:18:27,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 171. [2023-11-29 01:18:27,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 126 states have (on average 1.380952380952381) internal successors, (174), 146 states have internal predecessors, (174), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:18:27,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 214 transitions. [2023-11-29 01:18:27,610 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 214 transitions. Word has length 42 [2023-11-29 01:18:27,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:27,611 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 214 transitions. [2023-11-29 01:18:27,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:18:27,611 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 214 transitions. [2023-11-29 01:18:27,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 01:18:27,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:27,612 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:27,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 01:18:27,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 01:18:27,813 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:27,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:27,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1221277835, now seen corresponding path program 1 times [2023-11-29 01:18:27,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:27,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566683807] [2023-11-29 01:18:27,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:27,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:27,821 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:27,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1545421075] [2023-11-29 01:18:27,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:27,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:27,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:27,822 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:27,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 01:18:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:27,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:18:27,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:27,941 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 01:18:27,942 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:28,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:28,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566683807] [2023-11-29 01:18:28,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:28,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545421075] [2023-11-29 01:18:28,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545421075] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:18:28,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:18:28,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2023-11-29 01:18:28,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348979928] [2023-11-29 01:18:28,071 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:28,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:18:28,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:28,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:18:28,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:18:28,073 INFO L87 Difference]: Start difference. First operand 171 states and 214 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:18:28,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:28,205 INFO L93 Difference]: Finished difference Result 263 states and 322 transitions. [2023-11-29 01:18:28,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:18:28,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2023-11-29 01:18:28,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:28,208 INFO L225 Difference]: With dead ends: 263 [2023-11-29 01:18:28,208 INFO L226 Difference]: Without dead ends: 259 [2023-11-29 01:18:28,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:18:28,210 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 103 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:28,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 125 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:28,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-11-29 01:18:28,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 225. [2023-11-29 01:18:28,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 174 states have (on average 1.4022988505747127) internal successors, (244), 194 states have internal predecessors, (244), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 01:18:28,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 296 transitions. [2023-11-29 01:18:28,231 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 296 transitions. Word has length 43 [2023-11-29 01:18:28,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:28,231 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 296 transitions. [2023-11-29 01:18:28,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:18:28,232 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 296 transitions. [2023-11-29 01:18:28,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 01:18:28,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:28,233 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:28,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 01:18:28,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 01:18:28,437 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:28,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:28,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1982985848, now seen corresponding path program 1 times [2023-11-29 01:18:28,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:28,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890885902] [2023-11-29 01:18:28,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:28,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:28,448 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:28,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [254023715] [2023-11-29 01:18:28,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:28,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:28,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:28,450 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:28,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 01:18:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:28,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:18:28,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:28,602 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 01:18:28,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:28,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:28,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890885902] [2023-11-29 01:18:28,603 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:28,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254023715] [2023-11-29 01:18:28,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254023715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:28,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:28,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:18:28,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007810155] [2023-11-29 01:18:28,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:28,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:18:28,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:28,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:18:28,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:18:28,606 INFO L87 Difference]: Start difference. First operand 225 states and 296 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:18:28,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:28,693 INFO L93 Difference]: Finished difference Result 230 states and 300 transitions. [2023-11-29 01:18:28,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:18:28,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2023-11-29 01:18:28,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:28,695 INFO L225 Difference]: With dead ends: 230 [2023-11-29 01:18:28,695 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 01:18:28,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:18:28,697 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 2 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:28,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 166 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:28,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 01:18:28,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2023-11-29 01:18:28,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 163 states have (on average 1.4233128834355828) internal successors, (232), 183 states have internal predecessors, (232), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-29 01:18:28,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 280 transitions. [2023-11-29 01:18:28,715 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 280 transitions. Word has length 48 [2023-11-29 01:18:28,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:28,716 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 280 transitions. [2023-11-29 01:18:28,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:18:28,716 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 280 transitions. [2023-11-29 01:18:28,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 01:18:28,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:28,717 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 01:18:28,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 01:18:28,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 01:18:28,918 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:28,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:28,919 INFO L85 PathProgramCache]: Analyzing trace with hash 424230821, now seen corresponding path program 1 times [2023-11-29 01:18:28,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:28,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201095345] [2023-11-29 01:18:28,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:28,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:28,930 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:28,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [55740720] [2023-11-29 01:18:28,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:28,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:28,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:28,932 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:28,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 01:18:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:28,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:18:28,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:29,037 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 01:18:29,038 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:29,102 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 01:18:29,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:29,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201095345] [2023-11-29 01:18:29,102 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:29,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55740720] [2023-11-29 01:18:29,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55740720] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:18:29,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:18:29,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 01:18:29,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450165354] [2023-11-29 01:18:29,103 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:29,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:18:29,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:29,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:18:29,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:18:29,105 INFO L87 Difference]: Start difference. First operand 212 states and 280 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 01:18:29,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:29,282 INFO L93 Difference]: Finished difference Result 353 states and 437 transitions. [2023-11-29 01:18:29,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:18:29,283 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 51 [2023-11-29 01:18:29,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:29,286 INFO L225 Difference]: With dead ends: 353 [2023-11-29 01:18:29,286 INFO L226 Difference]: Without dead ends: 351 [2023-11-29 01:18:29,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:18:29,287 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 191 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:29,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 220 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:29,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-29 01:18:29,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 275. [2023-11-29 01:18:29,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 217 states have (on average 1.4377880184331797) internal successors, (312), 237 states have internal predecessors, (312), 33 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-29 01:18:29,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 378 transitions. [2023-11-29 01:18:29,305 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 378 transitions. Word has length 51 [2023-11-29 01:18:29,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:29,305 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 378 transitions. [2023-11-29 01:18:29,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 01:18:29,306 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 378 transitions. [2023-11-29 01:18:29,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 01:18:29,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:29,306 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:29,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-29 01:18:29,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 01:18:29,513 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:29,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:29,513 INFO L85 PathProgramCache]: Analyzing trace with hash 266206954, now seen corresponding path program 1 times [2023-11-29 01:18:29,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:29,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834578530] [2023-11-29 01:18:29,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:29,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:29,522 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:29,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [484049271] [2023-11-29 01:18:29,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:29,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:29,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:29,523 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:29,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 01:18:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:29,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:18:29,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:29,655 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 01:18:29,655 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:29,735 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 01:18:29,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:29,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834578530] [2023-11-29 01:18:29,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:29,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484049271] [2023-11-29 01:18:29,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484049271] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:18:29,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:18:29,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2023-11-29 01:18:29,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601144785] [2023-11-29 01:18:29,736 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:29,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:18:29,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:29,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:18:29,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:18:29,737 INFO L87 Difference]: Start difference. First operand 275 states and 378 transitions. Second operand has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 01:18:29,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:29,969 INFO L93 Difference]: Finished difference Result 321 states and 420 transitions. [2023-11-29 01:18:29,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 01:18:29,969 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 52 [2023-11-29 01:18:29,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:29,972 INFO L225 Difference]: With dead ends: 321 [2023-11-29 01:18:29,972 INFO L226 Difference]: Without dead ends: 315 [2023-11-29 01:18:29,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2023-11-29 01:18:29,973 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 89 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:29,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 551 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:29,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-29 01:18:29,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 297. [2023-11-29 01:18:29,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 237 states have (on average 1.409282700421941) internal successors, (334), 257 states have internal predecessors, (334), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-29 01:18:29,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 400 transitions. [2023-11-29 01:18:29,995 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 400 transitions. Word has length 52 [2023-11-29 01:18:29,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:29,996 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 400 transitions. [2023-11-29 01:18:29,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 14 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 01:18:29,996 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 400 transitions. [2023-11-29 01:18:29,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 01:18:29,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:29,997 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:30,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 01:18:30,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 01:18:30,198 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:30,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:30,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1428801452, now seen corresponding path program 1 times [2023-11-29 01:18:30,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:30,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360458538] [2023-11-29 01:18:30,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:30,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:30,205 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:30,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [67849956] [2023-11-29 01:18:30,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:30,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:30,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:30,207 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:30,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 01:18:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:30,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:18:30,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:30,356 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-29 01:18:30,356 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:30,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:30,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360458538] [2023-11-29 01:18:30,357 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:30,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67849956] [2023-11-29 01:18:30,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67849956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:30,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:30,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:18:30,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803183791] [2023-11-29 01:18:30,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:30,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:18:30,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:30,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:18:30,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:30,359 INFO L87 Difference]: Start difference. First operand 297 states and 400 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:30,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:30,428 INFO L93 Difference]: Finished difference Result 321 states and 425 transitions. [2023-11-29 01:18:30,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:18:30,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2023-11-29 01:18:30,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:30,432 INFO L225 Difference]: With dead ends: 321 [2023-11-29 01:18:30,432 INFO L226 Difference]: Without dead ends: 315 [2023-11-29 01:18:30,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:30,433 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 31 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:30,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 82 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:30,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-29 01:18:30,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 294. [2023-11-29 01:18:30,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 234 states have (on average 1.3547008547008548) internal successors, (317), 254 states have internal predecessors, (317), 33 states have call successors, (33), 6 states have call predecessors, (33), 6 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-29 01:18:30,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 383 transitions. [2023-11-29 01:18:30,457 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 383 transitions. Word has length 57 [2023-11-29 01:18:30,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:30,458 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 383 transitions. [2023-11-29 01:18:30,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:18:30,458 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 383 transitions. [2023-11-29 01:18:30,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 01:18:30,459 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:30,460 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2023-11-29 01:18:30,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 01:18:30,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 01:18:30,660 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:30,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:30,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1114975756, now seen corresponding path program 2 times [2023-11-29 01:18:30,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:30,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266401690] [2023-11-29 01:18:30,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:30,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:30,670 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:30,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1228402041] [2023-11-29 01:18:30,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:18:30,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:30,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:30,671 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:30,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 01:18:30,726 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:18:30,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:18:30,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:18:30,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:30,840 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 01:18:30,841 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:30,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:30,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266401690] [2023-11-29 01:18:30,948 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:30,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228402041] [2023-11-29 01:18:30,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228402041] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:18:30,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:18:30,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 01:18:30,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705540655] [2023-11-29 01:18:30,949 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:30,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:18:30,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:30,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:18:30,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:18:30,961 INFO L87 Difference]: Start difference. First operand 294 states and 383 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 01:18:31,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:31,112 INFO L93 Difference]: Finished difference Result 430 states and 544 transitions. [2023-11-29 01:18:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:18:31,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 69 [2023-11-29 01:18:31,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:31,115 INFO L225 Difference]: With dead ends: 430 [2023-11-29 01:18:31,115 INFO L226 Difference]: Without dead ends: 426 [2023-11-29 01:18:31,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:18:31,116 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 163 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:31,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 157 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:31,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-11-29 01:18:31,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 308. [2023-11-29 01:18:31,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 246 states have (on average 1.329268292682927) internal successors, (327), 266 states have internal predecessors, (327), 35 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 01:18:31,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 397 transitions. [2023-11-29 01:18:31,143 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 397 transitions. Word has length 69 [2023-11-29 01:18:31,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:31,143 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 397 transitions. [2023-11-29 01:18:31,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 01:18:31,144 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 397 transitions. [2023-11-29 01:18:31,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 01:18:31,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:31,145 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:31,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 01:18:31,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:31,345 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:31,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:31,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1868200099, now seen corresponding path program 1 times [2023-11-29 01:18:31,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:31,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4238101] [2023-11-29 01:18:31,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:31,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:31,356 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:31,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2100824620] [2023-11-29 01:18:31,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:31,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:31,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:31,357 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:31,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 01:18:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:31,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:18:31,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:31,425 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-29 01:18:31,426 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:31,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:31,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4238101] [2023-11-29 01:18:31,426 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:31,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100824620] [2023-11-29 01:18:31,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100824620] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:31,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:31,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:18:31,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658701275] [2023-11-29 01:18:31,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:31,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:18:31,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:31,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:18:31,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:31,428 INFO L87 Difference]: Start difference. First operand 308 states and 397 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:18:31,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:31,476 INFO L93 Difference]: Finished difference Result 308 states and 397 transitions. [2023-11-29 01:18:31,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:18:31,477 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 76 [2023-11-29 01:18:31,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:31,480 INFO L225 Difference]: With dead ends: 308 [2023-11-29 01:18:31,480 INFO L226 Difference]: Without dead ends: 307 [2023-11-29 01:18:31,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:18:31,481 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 4 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:31,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 113 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:18:31,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-11-29 01:18:31,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2023-11-29 01:18:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 246 states have (on average 1.3130081300813008) internal successors, (323), 265 states have internal predecessors, (323), 35 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 01:18:31,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 393 transitions. [2023-11-29 01:18:31,506 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 393 transitions. Word has length 76 [2023-11-29 01:18:31,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:31,507 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 393 transitions. [2023-11-29 01:18:31,507 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:18:31,507 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 393 transitions. [2023-11-29 01:18:31,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 01:18:31,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:31,509 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:31,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 01:18:31,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:31,709 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:31,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:31,710 INFO L85 PathProgramCache]: Analyzing trace with hash -2079628105, now seen corresponding path program 1 times [2023-11-29 01:18:31,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:31,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327445884] [2023-11-29 01:18:31,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:31,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:31,721 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:31,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1628325109] [2023-11-29 01:18:31,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:31,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:31,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:31,723 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:31,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 01:18:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:31,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:18:31,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:31,968 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 01:18:31,969 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:31,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:31,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327445884] [2023-11-29 01:18:31,969 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:31,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628325109] [2023-11-29 01:18:31,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628325109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:31,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:31,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:18:31,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897881685] [2023-11-29 01:18:31,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:31,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:18:31,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:31,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:18:31,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:18:31,971 INFO L87 Difference]: Start difference. First operand 307 states and 393 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 01:18:32,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:32,077 INFO L93 Difference]: Finished difference Result 443 states and 577 transitions. [2023-11-29 01:18:32,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:18:32,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 77 [2023-11-29 01:18:32,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:32,081 INFO L225 Difference]: With dead ends: 443 [2023-11-29 01:18:32,081 INFO L226 Difference]: Without dead ends: 441 [2023-11-29 01:18:32,082 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 01:18:32,083 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 51 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:32,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 125 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:32,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-11-29 01:18:32,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 415. [2023-11-29 01:18:32,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 342 states have (on average 1.3391812865497077) internal successors, (458), 361 states have internal predecessors, (458), 47 states have call successors, (47), 6 states have call predecessors, (47), 6 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 01:18:32,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 552 transitions. [2023-11-29 01:18:32,119 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 552 transitions. Word has length 77 [2023-11-29 01:18:32,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:32,119 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 552 transitions. [2023-11-29 01:18:32,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 01:18:32,120 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 552 transitions. [2023-11-29 01:18:32,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 01:18:32,120 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:32,120 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:32,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-29 01:18:32,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:32,321 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:32,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:32,322 INFO L85 PathProgramCache]: Analyzing trace with hash -43961697, now seen corresponding path program 1 times [2023-11-29 01:18:32,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:32,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657145574] [2023-11-29 01:18:32,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:32,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:32,334 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:32,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [207253339] [2023-11-29 01:18:32,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:32,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:32,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:32,336 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:32,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 01:18:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:32,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:18:32,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:32,610 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-29 01:18:32,610 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:32,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:32,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657145574] [2023-11-29 01:18:32,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:32,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207253339] [2023-11-29 01:18:32,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207253339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:32,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:32,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:18:32,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424413778] [2023-11-29 01:18:32,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:32,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:18:32,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:32,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:18:32,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:18:32,612 INFO L87 Difference]: Start difference. First operand 415 states and 552 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:18:32,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:32,754 INFO L93 Difference]: Finished difference Result 438 states and 573 transitions. [2023-11-29 01:18:32,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:18:32,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 78 [2023-11-29 01:18:32,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:32,760 INFO L225 Difference]: With dead ends: 438 [2023-11-29 01:18:32,760 INFO L226 Difference]: Without dead ends: 437 [2023-11-29 01:18:32,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:18:32,761 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 82 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:32,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 146 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:32,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2023-11-29 01:18:32,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 424. [2023-11-29 01:18:32,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 351 states have (on average 1.3276353276353277) internal successors, (466), 370 states have internal predecessors, (466), 47 states have call successors, (47), 6 states have call predecessors, (47), 6 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 01:18:32,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 560 transitions. [2023-11-29 01:18:32,805 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 560 transitions. Word has length 78 [2023-11-29 01:18:32,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:32,805 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 560 transitions. [2023-11-29 01:18:32,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:18:32,806 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 560 transitions. [2023-11-29 01:18:32,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 01:18:32,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:32,807 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:32,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-29 01:18:33,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:33,012 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:33,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:33,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1362812487, now seen corresponding path program 1 times [2023-11-29 01:18:33,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:33,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47729296] [2023-11-29 01:18:33,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:33,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:33,021 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:33,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [920951735] [2023-11-29 01:18:33,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:33,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:33,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:33,023 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:33,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 01:18:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:33,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:18:33,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:33,191 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-29 01:18:33,192 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:33,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:33,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47729296] [2023-11-29 01:18:33,192 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:33,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920951735] [2023-11-29 01:18:33,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920951735] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:33,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:33,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:18:33,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091380163] [2023-11-29 01:18:33,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:33,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:18:33,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:33,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:18:33,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:18:33,194 INFO L87 Difference]: Start difference. First operand 424 states and 560 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:18:33,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:33,297 INFO L93 Difference]: Finished difference Result 434 states and 566 transitions. [2023-11-29 01:18:33,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:18:33,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 79 [2023-11-29 01:18:33,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:33,300 INFO L225 Difference]: With dead ends: 434 [2023-11-29 01:18:33,300 INFO L226 Difference]: Without dead ends: 432 [2023-11-29 01:18:33,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:18:33,301 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 36 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:33,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 113 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:33,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2023-11-29 01:18:33,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 427. [2023-11-29 01:18:33,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 354 states have (on average 1.3022598870056497) internal successors, (461), 373 states have internal predecessors, (461), 47 states have call successors, (47), 6 states have call predecessors, (47), 6 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 01:18:33,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 555 transitions. [2023-11-29 01:18:33,346 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 555 transitions. Word has length 79 [2023-11-29 01:18:33,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:33,346 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 555 transitions. [2023-11-29 01:18:33,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:18:33,347 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 555 transitions. [2023-11-29 01:18:33,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 01:18:33,348 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:33,348 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:33,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-29 01:18:33,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 01:18:33,552 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:33,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:33,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1411383490, now seen corresponding path program 1 times [2023-11-29 01:18:33,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:33,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502135821] [2023-11-29 01:18:33,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:33,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:33,563 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:33,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1162884291] [2023-11-29 01:18:33,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:33,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:33,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:33,565 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:33,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 01:18:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:33,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:18:33,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:33,776 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:18:33,776 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:33,933 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 01:18:33,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:33,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502135821] [2023-11-29 01:18:33,933 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:33,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162884291] [2023-11-29 01:18:33,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162884291] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:18:33,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:18:33,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2023-11-29 01:18:33,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575045069] [2023-11-29 01:18:33,934 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:33,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 01:18:33,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:33,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 01:18:33,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2023-11-29 01:18:33,937 INFO L87 Difference]: Start difference. First operand 427 states and 555 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 6 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 01:18:34,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:34,322 INFO L93 Difference]: Finished difference Result 776 states and 985 transitions. [2023-11-29 01:18:34,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 01:18:34,322 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 6 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 84 [2023-11-29 01:18:34,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:34,326 INFO L225 Difference]: With dead ends: 776 [2023-11-29 01:18:34,327 INFO L226 Difference]: Without dead ends: 565 [2023-11-29 01:18:34,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 01:18:34,329 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 168 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:34,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 715 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:18:34,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2023-11-29 01:18:34,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 524. [2023-11-29 01:18:34,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 441 states have (on average 1.2789115646258504) internal successors, (564), 460 states have internal predecessors, (564), 55 states have call successors, (55), 8 states have call predecessors, (55), 8 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-29 01:18:34,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 674 transitions. [2023-11-29 01:18:34,384 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 674 transitions. Word has length 84 [2023-11-29 01:18:34,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:34,384 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 674 transitions. [2023-11-29 01:18:34,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 6 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 01:18:34,385 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 674 transitions. [2023-11-29 01:18:34,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 01:18:34,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:34,386 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:34,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-29 01:18:34,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:34,587 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:34,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:34,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1411383508, now seen corresponding path program 1 times [2023-11-29 01:18:34,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:34,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001123163] [2023-11-29 01:18:34,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:34,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:34,598 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:34,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [516194634] [2023-11-29 01:18:34,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:34,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:34,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:34,599 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:34,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 01:18:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:34,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:18:34,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:35,006 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 01:18:35,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:36,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:36,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001123163] [2023-11-29 01:18:36,091 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:36,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516194634] [2023-11-29 01:18:36,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516194634] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:18:36,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:18:36,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 01:18:36,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520655181] [2023-11-29 01:18:36,092 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:36,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:18:36,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:36,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:18:36,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:18:36,094 INFO L87 Difference]: Start difference. First operand 524 states and 674 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 01:18:36,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:36,359 INFO L93 Difference]: Finished difference Result 607 states and 758 transitions. [2023-11-29 01:18:36,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:18:36,359 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2023-11-29 01:18:36,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:36,362 INFO L225 Difference]: With dead ends: 607 [2023-11-29 01:18:36,362 INFO L226 Difference]: Without dead ends: 456 [2023-11-29 01:18:36,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:18:36,363 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 80 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:36,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 270 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:18:36,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-11-29 01:18:36,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 442. [2023-11-29 01:18:36,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 365 states have (on average 1.2767123287671234) internal successors, (466), 384 states have internal predecessors, (466), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 01:18:36,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 564 transitions. [2023-11-29 01:18:36,393 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 564 transitions. Word has length 84 [2023-11-29 01:18:36,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:36,394 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 564 transitions. [2023-11-29 01:18:36,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 01:18:36,394 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 564 transitions. [2023-11-29 01:18:36,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 01:18:36,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:36,396 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:36,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 01:18:36,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:36,601 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:36,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:36,601 INFO L85 PathProgramCache]: Analyzing trace with hash 803215874, now seen corresponding path program 1 times [2023-11-29 01:18:36,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:36,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095859079] [2023-11-29 01:18:36,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:36,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:36,612 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:36,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1233057034] [2023-11-29 01:18:36,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:36,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:36,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:36,613 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:36,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 01:18:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:36,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 01:18:36,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:36,983 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 01:18:36,984 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:37,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:37,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095859079] [2023-11-29 01:18:37,316 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:37,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233057034] [2023-11-29 01:18:37,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233057034] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:18:37,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:18:37,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 01:18:37,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988284406] [2023-11-29 01:18:37,317 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:37,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:18:37,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:37,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:18:37,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:18:37,319 INFO L87 Difference]: Start difference. First operand 442 states and 564 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 01:18:37,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:37,460 INFO L93 Difference]: Finished difference Result 458 states and 571 transitions. [2023-11-29 01:18:37,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:18:37,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2023-11-29 01:18:37,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:37,463 INFO L225 Difference]: With dead ends: 458 [2023-11-29 01:18:37,463 INFO L226 Difference]: Without dead ends: 457 [2023-11-29 01:18:37,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:18:37,464 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 60 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:37,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 154 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:37,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-29 01:18:37,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 442. [2023-11-29 01:18:37,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 365 states have (on average 1.273972602739726) internal successors, (465), 384 states have internal predecessors, (465), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 01:18:37,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 563 transitions. [2023-11-29 01:18:37,494 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 563 transitions. Word has length 85 [2023-11-29 01:18:37,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:37,494 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 563 transitions. [2023-11-29 01:18:37,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 01:18:37,494 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 563 transitions. [2023-11-29 01:18:37,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 01:18:37,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:37,495 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:37,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 01:18:37,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:37,696 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:37,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:37,696 INFO L85 PathProgramCache]: Analyzing trace with hash -870111594, now seen corresponding path program 1 times [2023-11-29 01:18:37,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:37,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483763312] [2023-11-29 01:18:37,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:37,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:37,706 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:37,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1771909971] [2023-11-29 01:18:37,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:37,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:37,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:37,712 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:37,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 01:18:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:37,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:18:37,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:37,821 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-11-29 01:18:37,821 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:37,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:37,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483763312] [2023-11-29 01:18:37,821 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:37,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771909971] [2023-11-29 01:18:37,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771909971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:37,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:37,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:18:37,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421144048] [2023-11-29 01:18:37,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:37,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:18:37,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:37,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:18:37,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:18:37,824 INFO L87 Difference]: Start difference. First operand 442 states and 563 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:18:38,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:38,125 INFO L93 Difference]: Finished difference Result 472 states and 594 transitions. [2023-11-29 01:18:38,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:18:38,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 86 [2023-11-29 01:18:38,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:38,129 INFO L225 Difference]: With dead ends: 472 [2023-11-29 01:18:38,129 INFO L226 Difference]: Without dead ends: 470 [2023-11-29 01:18:38,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 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 01:18:38,130 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 78 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:38,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 187 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:18:38,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-11-29 01:18:38,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 456. [2023-11-29 01:18:38,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 380 states have (on average 1.2605263157894737) internal successors, (479), 398 states have internal predecessors, (479), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 01:18:38,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 577 transitions. [2023-11-29 01:18:38,178 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 577 transitions. Word has length 86 [2023-11-29 01:18:38,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:38,179 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 577 transitions. [2023-11-29 01:18:38,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:18:38,179 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 577 transitions. [2023-11-29 01:18:38,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 01:18:38,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:38,180 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:38,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-29 01:18:38,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:38,381 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:38,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:38,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1203655548, now seen corresponding path program 1 times [2023-11-29 01:18:38,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:38,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380062079] [2023-11-29 01:18:38,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:38,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:38,388 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:38,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [712600934] [2023-11-29 01:18:38,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:38,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:38,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:38,390 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:38,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 01:18:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:38,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:18:38,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:38,656 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 01:18:38,656 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:39,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:39,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380062079] [2023-11-29 01:18:39,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:39,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712600934] [2023-11-29 01:18:39,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712600934] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:18:39,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:18:39,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 01:18:39,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87721972] [2023-11-29 01:18:39,068 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:39,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:18:39,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:39,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:18:39,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:18:39,069 INFO L87 Difference]: Start difference. First operand 456 states and 577 transitions. Second operand has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 01:18:39,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:39,309 INFO L93 Difference]: Finished difference Result 465 states and 584 transitions. [2023-11-29 01:18:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:18:39,310 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2023-11-29 01:18:39,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:39,312 INFO L225 Difference]: With dead ends: 465 [2023-11-29 01:18:39,312 INFO L226 Difference]: Without dead ends: 461 [2023-11-29 01:18:39,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:18:39,313 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 57 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:39,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 272 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:18:39,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-11-29 01:18:39,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 459. [2023-11-29 01:18:39,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 383 states have (on average 1.2584856396866841) internal successors, (482), 401 states have internal predecessors, (482), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 01:18:39,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 580 transitions. [2023-11-29 01:18:39,339 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 580 transitions. Word has length 87 [2023-11-29 01:18:39,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:39,340 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 580 transitions. [2023-11-29 01:18:39,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 01:18:39,340 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 580 transitions. [2023-11-29 01:18:39,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 01:18:39,348 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:39,348 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2023-11-29 01:18:39,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-29 01:18:39,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:39,549 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:39,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:39,549 INFO L85 PathProgramCache]: Analyzing trace with hash 2118101939, now seen corresponding path program 3 times [2023-11-29 01:18:39,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:39,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756830455] [2023-11-29 01:18:39,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:39,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:39,556 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:39,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [854187257] [2023-11-29 01:18:39,556 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 01:18:39,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:39,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:39,557 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:39,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 01:18:39,602 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 01:18:39,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:18:39,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:18:39,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:39,695 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2023-11-29 01:18:39,695 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:39,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:39,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756830455] [2023-11-29 01:18:39,695 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:39,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854187257] [2023-11-29 01:18:39,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854187257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:39,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:39,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:18:39,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345646637] [2023-11-29 01:18:39,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:39,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:18:39,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:39,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:18:39,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:18:39,697 INFO L87 Difference]: Start difference. First operand 459 states and 580 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:18:39,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:39,770 INFO L93 Difference]: Finished difference Result 459 states and 580 transitions. [2023-11-29 01:18:39,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:18:39,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 95 [2023-11-29 01:18:39,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:39,774 INFO L225 Difference]: With dead ends: 459 [2023-11-29 01:18:39,774 INFO L226 Difference]: Without dead ends: 456 [2023-11-29 01:18:39,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:18:39,775 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 92 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:39,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 54 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:18:39,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-11-29 01:18:39,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 357. [2023-11-29 01:18:39,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 294 states have (on average 1.2142857142857142) internal successors, (357), 309 states have internal predecessors, (357), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-29 01:18:39,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 435 transitions. [2023-11-29 01:18:39,801 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 435 transitions. Word has length 95 [2023-11-29 01:18:39,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:39,801 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 435 transitions. [2023-11-29 01:18:39,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:18:39,801 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 435 transitions. [2023-11-29 01:18:39,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 01:18:39,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:39,802 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 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] [2023-11-29 01:18:39,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 01:18:40,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:40,003 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:40,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:40,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1494603811, now seen corresponding path program 1 times [2023-11-29 01:18:40,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:40,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216275885] [2023-11-29 01:18:40,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:40,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:40,014 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:40,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [728640573] [2023-11-29 01:18:40,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:40,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:40,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:40,016 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:40,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 01:18:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:40,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 01:18:40,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:40,472 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 01:18:40,472 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:41,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:41,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216275885] [2023-11-29 01:18:41,814 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:41,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728640573] [2023-11-29 01:18:41,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728640573] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:18:41,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:18:41,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 01:18:41,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143519571] [2023-11-29 01:18:41,815 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:41,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:18:41,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:41,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:18:41,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:18:41,816 INFO L87 Difference]: Start difference. First operand 357 states and 435 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 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 01:18:42,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:42,103 INFO L93 Difference]: Finished difference Result 359 states and 435 transitions. [2023-11-29 01:18:42,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:18:42,104 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 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 101 [2023-11-29 01:18:42,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:42,106 INFO L225 Difference]: With dead ends: 359 [2023-11-29 01:18:42,106 INFO L226 Difference]: Without dead ends: 358 [2023-11-29 01:18:42,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:18:42,107 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 13 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:42,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 234 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:18:42,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-11-29 01:18:42,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 357. [2023-11-29 01:18:42,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 294 states have (on average 1.2108843537414966) internal successors, (356), 309 states have internal predecessors, (356), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-29 01:18:42,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 434 transitions. [2023-11-29 01:18:42,140 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 434 transitions. Word has length 101 [2023-11-29 01:18:42,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:42,141 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 434 transitions. [2023-11-29 01:18:42,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 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 01:18:42,141 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 434 transitions. [2023-11-29 01:18:42,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 01:18:42,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:42,142 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 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] [2023-11-29 01:18:42,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 01:18:42,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:42,343 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:42,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:42,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1795189669, now seen corresponding path program 1 times [2023-11-29 01:18:42,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:42,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632266105] [2023-11-29 01:18:42,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:42,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:42,354 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:42,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1349406961] [2023-11-29 01:18:42,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:42,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:42,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:42,356 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:42,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 01:18:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:42,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:18:42,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:42,451 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-29 01:18:42,451 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:42,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:42,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632266105] [2023-11-29 01:18:42,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:42,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349406961] [2023-11-29 01:18:42,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349406961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:42,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:42,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:18:42,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406237315] [2023-11-29 01:18:42,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:42,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:18:42,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:42,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:18:42,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:18:42,453 INFO L87 Difference]: Start difference. First operand 357 states and 434 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 01:18:42,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:42,626 INFO L93 Difference]: Finished difference Result 361 states and 434 transitions. [2023-11-29 01:18:42,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:18:42,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 103 [2023-11-29 01:18:42,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:42,629 INFO L225 Difference]: With dead ends: 361 [2023-11-29 01:18:42,629 INFO L226 Difference]: Without dead ends: 314 [2023-11-29 01:18:42,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:18:42,630 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 25 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:42,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 223 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:42,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-11-29 01:18:42,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 310. [2023-11-29 01:18:42,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 254 states have (on average 1.236220472440945) internal successors, (314), 268 states have internal predecessors, (314), 35 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-11-29 01:18:42,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 384 transitions. [2023-11-29 01:18:42,654 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 384 transitions. Word has length 103 [2023-11-29 01:18:42,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:42,654 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 384 transitions. [2023-11-29 01:18:42,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 01:18:42,654 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 384 transitions. [2023-11-29 01:18:42,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 01:18:42,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:42,655 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2023-11-29 01:18:42,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 01:18:42,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-29 01:18:42,861 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:42,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:42,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1390862043, now seen corresponding path program 1 times [2023-11-29 01:18:42,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:42,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631692494] [2023-11-29 01:18:42,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:42,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:42,868 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:42,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [259411777] [2023-11-29 01:18:42,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:42,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:42,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:42,869 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:42,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 01:18:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:42,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:18:42,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:43,005 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:18:43,005 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:43,111 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:18:43,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:43,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631692494] [2023-11-29 01:18:43,111 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:43,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259411777] [2023-11-29 01:18:43,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259411777] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:18:43,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:18:43,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 01:18:43,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43982261] [2023-11-29 01:18:43,112 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:43,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:18:43,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:43,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:18:43,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:18:43,114 INFO L87 Difference]: Start difference. First operand 310 states and 384 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 01:18:43,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:43,350 INFO L93 Difference]: Finished difference Result 832 states and 1013 transitions. [2023-11-29 01:18:43,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:18:43,350 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 105 [2023-11-29 01:18:43,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:43,354 INFO L225 Difference]: With dead ends: 832 [2023-11-29 01:18:43,354 INFO L226 Difference]: Without dead ends: 831 [2023-11-29 01:18:43,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:18:43,356 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 397 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:43,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 400 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:18:43,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2023-11-29 01:18:43,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 368. [2023-11-29 01:18:43,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 300 states have (on average 1.2533333333333334) internal successors, (376), 314 states have internal predecessors, (376), 47 states have call successors, (47), 6 states have call predecessors, (47), 6 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 01:18:43,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 470 transitions. [2023-11-29 01:18:43,400 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 470 transitions. Word has length 105 [2023-11-29 01:18:43,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:43,401 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 470 transitions. [2023-11-29 01:18:43,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 01:18:43,401 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 470 transitions. [2023-11-29 01:18:43,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 01:18:43,402 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:43,402 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2023-11-29 01:18:43,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 01:18:43,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 01:18:43,603 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:43,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:43,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1621581694, now seen corresponding path program 2 times [2023-11-29 01:18:43,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:43,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504870673] [2023-11-29 01:18:43,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:43,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:43,611 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:43,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [303826345] [2023-11-29 01:18:43,611 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:18:43,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:43,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:43,612 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:43,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 01:18:43,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:18:43,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:18:43,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:18:43,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:43,853 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 01:18:43,854 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:44,027 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 01:18:44,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:44,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504870673] [2023-11-29 01:18:44,028 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:44,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303826345] [2023-11-29 01:18:44,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303826345] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:18:44,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:18:44,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2023-11-29 01:18:44,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728553497] [2023-11-29 01:18:44,029 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:44,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 01:18:44,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:44,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 01:18:44,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:18:44,030 INFO L87 Difference]: Start difference. First operand 368 states and 470 transitions. Second operand has 22 states, 21 states have (on average 5.285714285714286) internal successors, (111), 22 states have internal predecessors, (111), 8 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 01:18:44,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:44,490 INFO L93 Difference]: Finished difference Result 554 states and 681 transitions. [2023-11-29 01:18:44,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 01:18:44,490 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.285714285714286) internal successors, (111), 22 states have internal predecessors, (111), 8 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 108 [2023-11-29 01:18:44,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:44,493 INFO L225 Difference]: With dead ends: 554 [2023-11-29 01:18:44,493 INFO L226 Difference]: Without dead ends: 434 [2023-11-29 01:18:44,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 01:18:44,495 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 154 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:44,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 661 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:18:44,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-11-29 01:18:44,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 405. [2023-11-29 01:18:44,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 329 states have (on average 1.2279635258358663) internal successors, (404), 343 states have internal predecessors, (404), 50 states have call successors, (50), 11 states have call predecessors, (50), 11 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-29 01:18:44,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 504 transitions. [2023-11-29 01:18:44,526 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 504 transitions. Word has length 108 [2023-11-29 01:18:44,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:44,526 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 504 transitions. [2023-11-29 01:18:44,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.285714285714286) internal successors, (111), 22 states have internal predecessors, (111), 8 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 01:18:44,527 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 504 transitions. [2023-11-29 01:18:44,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 01:18:44,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:44,528 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2023-11-29 01:18:44,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 01:18:44,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 01:18:44,728 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:44,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:44,729 INFO L85 PathProgramCache]: Analyzing trace with hash -2049797835, now seen corresponding path program 2 times [2023-11-29 01:18:44,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:44,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924888880] [2023-11-29 01:18:44,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:44,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:44,739 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:44,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [420801016] [2023-11-29 01:18:44,739 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:18:44,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:44,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:44,740 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:44,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 01:18:44,789 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:18:44,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:18:44,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:18:44,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:45,032 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-11-29 01:18:45,032 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:45,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:45,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924888880] [2023-11-29 01:18:45,778 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:45,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420801016] [2023-11-29 01:18:45,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420801016] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:18:45,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:18:45,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 01:18:45,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567769923] [2023-11-29 01:18:45,778 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:45,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:18:45,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:45,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:18:45,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:18:45,780 INFO L87 Difference]: Start difference. First operand 405 states and 504 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:18:45,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:45,968 INFO L93 Difference]: Finished difference Result 490 states and 607 transitions. [2023-11-29 01:18:45,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:18:45,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 110 [2023-11-29 01:18:45,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:45,971 INFO L225 Difference]: With dead ends: 490 [2023-11-29 01:18:45,971 INFO L226 Difference]: Without dead ends: 489 [2023-11-29 01:18:45,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:18:45,972 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 131 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:45,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 100 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:45,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-11-29 01:18:46,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 405. [2023-11-29 01:18:46,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 329 states have (on average 1.221884498480243) internal successors, (402), 343 states have internal predecessors, (402), 50 states have call successors, (50), 11 states have call predecessors, (50), 11 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-29 01:18:46,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 502 transitions. [2023-11-29 01:18:46,009 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 502 transitions. Word has length 110 [2023-11-29 01:18:46,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:46,009 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 502 transitions. [2023-11-29 01:18:46,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:18:46,010 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 502 transitions. [2023-11-29 01:18:46,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 01:18:46,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:46,011 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2023-11-29 01:18:46,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 01:18:46,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:46,212 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:46,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:46,212 INFO L85 PathProgramCache]: Analyzing trace with hash 880776641, now seen corresponding path program 2 times [2023-11-29 01:18:46,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:46,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836206135] [2023-11-29 01:18:46,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:46,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:46,222 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:46,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [681014495] [2023-11-29 01:18:46,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:18:46,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:46,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:46,223 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:46,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 01:18:46,278 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:18:46,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:18:46,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:18:46,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:46,465 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-11-29 01:18:46,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:46,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:46,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836206135] [2023-11-29 01:18:46,697 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:46,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681014495] [2023-11-29 01:18:46,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681014495] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:18:46,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:18:46,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 01:18:46,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883387966] [2023-11-29 01:18:46,697 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:46,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:18:46,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:46,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:18:46,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:18:46,698 INFO L87 Difference]: Start difference. First operand 405 states and 502 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:18:46,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:46,821 INFO L93 Difference]: Finished difference Result 409 states and 502 transitions. [2023-11-29 01:18:46,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:18:46,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 111 [2023-11-29 01:18:46,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:46,824 INFO L225 Difference]: With dead ends: 409 [2023-11-29 01:18:46,824 INFO L226 Difference]: Without dead ends: 408 [2023-11-29 01:18:46,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:18:46,825 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 64 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:46,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 98 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:46,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2023-11-29 01:18:46,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 404. [2023-11-29 01:18:46,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 329 states have (on average 1.209726443768997) internal successors, (398), 342 states have internal predecessors, (398), 50 states have call successors, (50), 11 states have call predecessors, (50), 11 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-29 01:18:46,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 498 transitions. [2023-11-29 01:18:46,853 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 498 transitions. Word has length 111 [2023-11-29 01:18:46,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:46,854 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 498 transitions. [2023-11-29 01:18:46,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:18:46,854 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 498 transitions. [2023-11-29 01:18:46,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 01:18:46,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:46,855 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:18:46,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 01:18:47,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 01:18:47,056 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:47,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:47,056 INFO L85 PathProgramCache]: Analyzing trace with hash 317797507, now seen corresponding path program 2 times [2023-11-29 01:18:47,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:47,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582028629] [2023-11-29 01:18:47,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:47,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:47,065 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:47,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [138056901] [2023-11-29 01:18:47,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:18:47,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:47,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:47,066 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:47,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 01:18:47,138 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:18:47,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:18:47,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 01:18:47,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:47,627 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 01:18:47,627 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:48,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:48,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582028629] [2023-11-29 01:18:48,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:48,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138056901] [2023-11-29 01:18:48,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138056901] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:18:48,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:18:48,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 01:18:48,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463468198] [2023-11-29 01:18:48,574 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:48,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:18:48,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:48,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:18:48,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:18:48,575 INFO L87 Difference]: Start difference. First operand 404 states and 498 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 01:18:49,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:49,068 INFO L93 Difference]: Finished difference Result 509 states and 619 transitions. [2023-11-29 01:18:49,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:18:49,068 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 113 [2023-11-29 01:18:49,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:49,070 INFO L225 Difference]: With dead ends: 509 [2023-11-29 01:18:49,070 INFO L226 Difference]: Without dead ends: 508 [2023-11-29 01:18:49,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:18:49,071 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 88 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:49,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 475 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:18:49,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-11-29 01:18:49,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 458. [2023-11-29 01:18:49,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 377 states have (on average 1.2015915119363396) internal successors, (453), 390 states have internal predecessors, (453), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-29 01:18:49,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 565 transitions. [2023-11-29 01:18:49,103 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 565 transitions. Word has length 113 [2023-11-29 01:18:49,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:49,104 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 565 transitions. [2023-11-29 01:18:49,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 01:18:49,104 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 565 transitions. [2023-11-29 01:18:49,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 01:18:49,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:49,105 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2023-11-29 01:18:49,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 01:18:49,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 01:18:49,308 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:49,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:49,308 INFO L85 PathProgramCache]: Analyzing trace with hash 203159010, now seen corresponding path program 2 times [2023-11-29 01:18:49,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:49,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322174152] [2023-11-29 01:18:49,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:49,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:49,315 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:49,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [787461049] [2023-11-29 01:18:49,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:18:49,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:49,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:49,317 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:49,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 01:18:49,377 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:18:49,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:18:49,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:18:49,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:49,450 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 01:18:49,450 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:49,562 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 01:18:49,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:49,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322174152] [2023-11-29 01:18:49,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:49,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787461049] [2023-11-29 01:18:49,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787461049] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:18:49,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:18:49,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2023-11-29 01:18:49,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625722876] [2023-11-29 01:18:49,563 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:49,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:18:49,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:49,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:18:49,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:18:49,564 INFO L87 Difference]: Start difference. First operand 458 states and 565 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 01:18:49,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:49,675 INFO L93 Difference]: Finished difference Result 476 states and 577 transitions. [2023-11-29 01:18:49,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:18:49,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 127 [2023-11-29 01:18:49,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:49,678 INFO L225 Difference]: With dead ends: 476 [2023-11-29 01:18:49,678 INFO L226 Difference]: Without dead ends: 469 [2023-11-29 01:18:49,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 245 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:18:49,679 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 62 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:49,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 176 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:49,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-29 01:18:49,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 458. [2023-11-29 01:18:49,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 377 states have (on average 1.193633952254642) internal successors, (450), 390 states have internal predecessors, (450), 56 states have call successors, (56), 11 states have call predecessors, (56), 11 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-29 01:18:49,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 562 transitions. [2023-11-29 01:18:49,711 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 562 transitions. Word has length 127 [2023-11-29 01:18:49,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:49,711 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 562 transitions. [2023-11-29 01:18:49,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 01:18:49,712 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 562 transitions. [2023-11-29 01:18:49,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 01:18:49,713 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:49,713 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1] [2023-11-29 01:18:49,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-29 01:18:49,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 01:18:49,914 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:49,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:49,914 INFO L85 PathProgramCache]: Analyzing trace with hash 465088482, now seen corresponding path program 2 times [2023-11-29 01:18:49,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:49,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33503868] [2023-11-29 01:18:49,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:49,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:49,921 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:49,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [548133989] [2023-11-29 01:18:49,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:18:49,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:49,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:49,923 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:49,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 01:18:49,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:18:49,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:18:49,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:18:49,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:50,079 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 01:18:50,079 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:50,189 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 01:18:50,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:50,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33503868] [2023-11-29 01:18:50,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:50,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548133989] [2023-11-29 01:18:50,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548133989] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:18:50,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:18:50,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 01:18:50,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114334931] [2023-11-29 01:18:50,190 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:50,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:18:50,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:50,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:18:50,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:18:50,192 INFO L87 Difference]: Start difference. First operand 458 states and 562 transitions. Second operand has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 12 states have internal predecessors, (111), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2023-11-29 01:18:50,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:50,755 INFO L93 Difference]: Finished difference Result 1197 states and 1481 transitions. [2023-11-29 01:18:50,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:18:50,755 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 12 states have internal predecessors, (111), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 129 [2023-11-29 01:18:50,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:50,761 INFO L225 Difference]: With dead ends: 1197 [2023-11-29 01:18:50,761 INFO L226 Difference]: Without dead ends: 1195 [2023-11-29 01:18:50,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:18:50,762 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 558 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:50,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 421 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:18:50,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2023-11-29 01:18:50,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 496. [2023-11-29 01:18:50,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 410 states have (on average 1.1829268292682926) internal successors, (485), 423 states have internal predecessors, (485), 61 states have call successors, (61), 11 states have call predecessors, (61), 11 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-29 01:18:50,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 607 transitions. [2023-11-29 01:18:50,809 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 607 transitions. Word has length 129 [2023-11-29 01:18:50,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:50,809 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 607 transitions. [2023-11-29 01:18:50,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 12 states have internal predecessors, (111), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2023-11-29 01:18:50,809 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 607 transitions. [2023-11-29 01:18:50,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 01:18:50,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:50,810 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2023-11-29 01:18:50,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 01:18:51,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 01:18:51,012 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:51,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:51,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1532794445, now seen corresponding path program 2 times [2023-11-29 01:18:51,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:51,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889450027] [2023-11-29 01:18:51,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:51,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:51,020 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:51,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1930238605] [2023-11-29 01:18:51,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:18:51,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:51,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:51,022 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:51,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 01:18:51,064 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:18:51,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:18:51,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:18:51,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:51,105 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2023-11-29 01:18:51,105 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:18:51,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:51,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889450027] [2023-11-29 01:18:51,105 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:51,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930238605] [2023-11-29 01:18:51,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930238605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:18:51,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:18:51,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:18:51,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094025314] [2023-11-29 01:18:51,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:18:51,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:18:51,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:51,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:18:51,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:18:51,107 INFO L87 Difference]: Start difference. First operand 496 states and 607 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:18:51,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:51,222 INFO L93 Difference]: Finished difference Result 509 states and 620 transitions. [2023-11-29 01:18:51,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:18:51,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 130 [2023-11-29 01:18:51,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:51,226 INFO L225 Difference]: With dead ends: 509 [2023-11-29 01:18:51,226 INFO L226 Difference]: Without dead ends: 508 [2023-11-29 01:18:51,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:18:51,227 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 15 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:51,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 201 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:18:51,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-11-29 01:18:51,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 506. [2023-11-29 01:18:51,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 419 states have (on average 1.1789976133651552) internal successors, (494), 432 states have internal predecessors, (494), 61 states have call successors, (61), 12 states have call predecessors, (61), 12 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-29 01:18:51,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 616 transitions. [2023-11-29 01:18:51,294 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 616 transitions. Word has length 130 [2023-11-29 01:18:51,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:51,295 INFO L495 AbstractCegarLoop]: Abstraction has 506 states and 616 transitions. [2023-11-29 01:18:51,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:18:51,295 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 616 transitions. [2023-11-29 01:18:51,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 01:18:51,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:51,297 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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] [2023-11-29 01:18:51,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2023-11-29 01:18:51,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 01:18:51,497 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:51,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:51,498 INFO L85 PathProgramCache]: Analyzing trace with hash -168836972, now seen corresponding path program 1 times [2023-11-29 01:18:51,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:51,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422992550] [2023-11-29 01:18:51,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:51,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:51,508 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:51,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1281021947] [2023-11-29 01:18:51,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:51,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:51,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:51,510 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:51,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 01:18:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:51,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:18:51,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:51,892 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 01:18:51,892 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:52,273 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 34 proven. 18 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 01:18:52,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:52,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422992550] [2023-11-29 01:18:52,273 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:52,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281021947] [2023-11-29 01:18:52,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281021947] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:18:52,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:18:52,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 01:18:52,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112420704] [2023-11-29 01:18:52,274 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:52,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:18:52,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:52,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:18:52,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:18:52,275 INFO L87 Difference]: Start difference. First operand 506 states and 616 transitions. Second operand has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 01:18:52,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:52,612 INFO L93 Difference]: Finished difference Result 639 states and 778 transitions. [2023-11-29 01:18:52,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:18:52,612 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 129 [2023-11-29 01:18:52,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:52,615 INFO L225 Difference]: With dead ends: 639 [2023-11-29 01:18:52,615 INFO L226 Difference]: Without dead ends: 637 [2023-11-29 01:18:52,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:18:52,616 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 190 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:52,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 296 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:18:52,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2023-11-29 01:18:52,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 534. [2023-11-29 01:18:52,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 443 states have (on average 1.1941309255079007) internal successors, (529), 456 states have internal predecessors, (529), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-29 01:18:52,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 659 transitions. [2023-11-29 01:18:52,671 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 659 transitions. Word has length 129 [2023-11-29 01:18:52,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:52,671 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 659 transitions. [2023-11-29 01:18:52,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 01:18:52,671 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 659 transitions. [2023-11-29 01:18:52,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 01:18:52,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:52,672 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 1, 1, 1] [2023-11-29 01:18:52,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 01:18:52,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 01:18:52,873 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:52,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:52,873 INFO L85 PathProgramCache]: Analyzing trace with hash -938721521, now seen corresponding path program 1 times [2023-11-29 01:18:52,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:52,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741692942] [2023-11-29 01:18:52,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:52,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:52,882 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:52,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [418382633] [2023-11-29 01:18:52,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:52,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:52,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:52,884 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:52,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 01:18:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:52,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:18:52,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:53,110 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 326 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 01:18:53,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:53,316 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 01:18:53,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:53,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741692942] [2023-11-29 01:18:53,317 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:53,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418382633] [2023-11-29 01:18:53,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418382633] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:18:53,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:18:53,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 25 [2023-11-29 01:18:53,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655105423] [2023-11-29 01:18:53,317 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:53,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 01:18:53,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:53,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 01:18:53,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=505, Unknown=0, NotChecked=0, Total=650 [2023-11-29 01:18:53,319 INFO L87 Difference]: Start difference. First operand 534 states and 659 transitions. Second operand has 26 states, 25 states have (on average 5.92) internal successors, (148), 26 states have internal predecessors, (148), 10 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-29 01:18:53,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:53,846 INFO L93 Difference]: Finished difference Result 963 states and 1182 transitions. [2023-11-29 01:18:53,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-11-29 01:18:53,847 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 5.92) internal successors, (148), 26 states have internal predecessors, (148), 10 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 130 [2023-11-29 01:18:53,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:53,851 INFO L225 Difference]: With dead ends: 963 [2023-11-29 01:18:53,851 INFO L226 Difference]: Without dead ends: 955 [2023-11-29 01:18:53,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=608, Invalid=2044, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 01:18:53,854 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 276 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:53,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 715 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:18:53,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2023-11-29 01:18:53,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 905. [2023-11-29 01:18:53,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 775 states have (on average 1.1961290322580644) internal successors, (927), 788 states have internal predecessors, (927), 99 states have call successors, (99), 17 states have call predecessors, (99), 17 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 01:18:53,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1125 transitions. [2023-11-29 01:18:53,964 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1125 transitions. Word has length 130 [2023-11-29 01:18:53,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:53,964 INFO L495 AbstractCegarLoop]: Abstraction has 905 states and 1125 transitions. [2023-11-29 01:18:53,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 5.92) internal successors, (148), 26 states have internal predecessors, (148), 10 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-29 01:18:53,964 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1125 transitions. [2023-11-29 01:18:53,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 01:18:53,965 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:53,965 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 01:18:53,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 01:18:54,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:54,166 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:54,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:54,166 INFO L85 PathProgramCache]: Analyzing trace with hash -687537624, now seen corresponding path program 1 times [2023-11-29 01:18:54,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:54,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266968817] [2023-11-29 01:18:54,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:54,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:54,175 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:54,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1085307656] [2023-11-29 01:18:54,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:54,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:54,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:54,176 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:54,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 01:18:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:54,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:18:54,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:54,436 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 01:18:54,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:18:58,026 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 01:18:58,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:18:58,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266968817] [2023-11-29 01:18:58,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:18:58,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085307656] [2023-11-29 01:18:58,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085307656] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:18:58,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:18:58,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 13 [2023-11-29 01:18:58,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786463380] [2023-11-29 01:18:58,027 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:18:58,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:18:58,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:18:58,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:18:58,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:18:58,028 INFO L87 Difference]: Start difference. First operand 905 states and 1125 transitions. Second operand has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 01:18:58,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:18:58,284 INFO L93 Difference]: Finished difference Result 1161 states and 1455 transitions. [2023-11-29 01:18:58,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:18:58,285 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 134 [2023-11-29 01:18:58,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:18:58,290 INFO L225 Difference]: With dead ends: 1161 [2023-11-29 01:18:58,290 INFO L226 Difference]: Without dead ends: 1160 [2023-11-29 01:18:58,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:18:58,291 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 143 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:18:58,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 298 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:18:58,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2023-11-29 01:18:58,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 904. [2023-11-29 01:18:58,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 775 states have (on average 1.1883870967741936) internal successors, (921), 787 states have internal predecessors, (921), 99 states have call successors, (99), 17 states have call predecessors, (99), 17 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 01:18:58,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1119 transitions. [2023-11-29 01:18:58,401 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1119 transitions. Word has length 134 [2023-11-29 01:18:58,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:18:58,401 INFO L495 AbstractCegarLoop]: Abstraction has 904 states and 1119 transitions. [2023-11-29 01:18:58,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 14 states have internal predecessors, (141), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 01:18:58,401 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1119 transitions. [2023-11-29 01:18:58,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 01:18:58,402 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:18:58,402 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 01:18:58,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 01:18:58,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:58,603 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:18:58,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:18:58,603 INFO L85 PathProgramCache]: Analyzing trace with hash 161170256, now seen corresponding path program 1 times [2023-11-29 01:18:58,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:18:58,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97425445] [2023-11-29 01:18:58,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:58,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:18:58,611 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:18:58,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [573463870] [2023-11-29 01:18:58,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:18:58,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:18:58,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:18:58,612 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:18:58,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 01:18:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:18:58,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 01:18:58,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:18:58,949 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 01:18:58,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:19:00,848 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 01:19:00,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:19:00,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97425445] [2023-11-29 01:19:00,848 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:19:00,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573463870] [2023-11-29 01:19:00,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573463870] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:19:00,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:19:00,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 01:19:00,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155523281] [2023-11-29 01:19:00,849 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:19:00,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:19:00,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:19:00,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:19:00,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:19:00,850 INFO L87 Difference]: Start difference. First operand 904 states and 1119 transitions. Second operand has 14 states, 13 states have (on average 11.0) internal successors, (143), 14 states have internal predecessors, (143), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 01:19:02,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:19:02,720 INFO L93 Difference]: Finished difference Result 1574 states and 1938 transitions. [2023-11-29 01:19:02,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 01:19:02,721 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.0) internal successors, (143), 14 states have internal predecessors, (143), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) Word has length 135 [2023-11-29 01:19:02,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:19:02,726 INFO L225 Difference]: With dead ends: 1574 [2023-11-29 01:19:02,726 INFO L226 Difference]: Without dead ends: 1315 [2023-11-29 01:19:02,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=252, Unknown=0, NotChecked=0, Total=420 [2023-11-29 01:19:02,727 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 533 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:19:02,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 669 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 01:19:02,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2023-11-29 01:19:02,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1107. [2023-11-29 01:19:02,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 964 states have (on average 1.2188796680497926) internal successors, (1175), 976 states have internal predecessors, (1175), 113 states have call successors, (113), 17 states have call predecessors, (113), 17 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-11-29 01:19:02,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1401 transitions. [2023-11-29 01:19:02,829 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1401 transitions. Word has length 135 [2023-11-29 01:19:02,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:19:02,829 INFO L495 AbstractCegarLoop]: Abstraction has 1107 states and 1401 transitions. [2023-11-29 01:19:02,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.0) internal successors, (143), 14 states have internal predecessors, (143), 8 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 8 states have call predecessors, (26), 8 states have call successors, (26) [2023-11-29 01:19:02,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1401 transitions. [2023-11-29 01:19:02,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-29 01:19:02,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:19:02,830 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-29 01:19:02,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 01:19:03,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:19:03,031 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:19:03,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:19:03,031 INFO L85 PathProgramCache]: Analyzing trace with hash 947235778, now seen corresponding path program 3 times [2023-11-29 01:19:03,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:19:03,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279204956] [2023-11-29 01:19:03,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:19:03,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:19:03,040 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:19:03,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1237711871] [2023-11-29 01:19:03,040 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 01:19:03,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:19:03,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:19:03,042 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:19:03,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 01:19:03,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 01:19:03,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:19:03,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 01:19:03,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:19:03,722 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 73 proven. 8 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-11-29 01:19:03,722 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:19:34,761 WARN L293 SmtUtils]: Spent 15.82s on a formula simplification that was a NOOP. DAG size: 46 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:19:50,393 WARN L293 SmtUtils]: Spent 7.29s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:20:22,930 WARN L293 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:20:30,940 WARN L293 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:20:49,450 WARN L293 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:21:25,340 WARN L293 SmtUtils]: Spent 7.78s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:21:58,100 WARN L293 SmtUtils]: Spent 8.00s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:23:51,688 WARN L293 SmtUtils]: Spent 7.20s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:24:29,596 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:25:18,846 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:25:42,588 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 39 proven. 42 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2023-11-29 01:25:42,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:25:42,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279204956] [2023-11-29 01:25:42,588 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:25:42,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237711871] [2023-11-29 01:25:42,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237711871] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:25:42,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:25:42,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2023-11-29 01:25:42,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594104755] [2023-11-29 01:25:42,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:25:42,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 01:25:42,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:25:42,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 01:25:42,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:25:42,591 INFO L87 Difference]: Start difference. First operand 1107 states and 1401 transitions. Second operand has 20 states, 19 states have (on average 5.684210526315789) internal successors, (108), 20 states have internal predecessors, (108), 4 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 01:25:52,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:52,329 INFO L93 Difference]: Finished difference Result 1391 states and 1729 transitions. [2023-11-29 01:25:52,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 01:25:52,329 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.684210526315789) internal successors, (108), 20 states have internal predecessors, (108), 4 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) Word has length 139 [2023-11-29 01:25:52,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:52,337 INFO L225 Difference]: With dead ends: 1391 [2023-11-29 01:25:52,337 INFO L226 Difference]: Without dead ends: 1390 [2023-11-29 01:25:52,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 22.1s TimeCoverageRelationStatistics Valid=300, Invalid=1032, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 01:25:52,338 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 347 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:52,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 312 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-29 01:25:52,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2023-11-29 01:25:52,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1243. [2023-11-29 01:25:52,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1092 states have (on average 1.206959706959707) internal successors, (1318), 1104 states have internal predecessors, (1318), 121 states have call successors, (121), 17 states have call predecessors, (121), 17 states have return successors, (121), 121 states have call predecessors, (121), 121 states have call successors, (121) [2023-11-29 01:25:52,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1560 transitions. [2023-11-29 01:25:52,474 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1560 transitions. Word has length 139 [2023-11-29 01:25:52,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:52,474 INFO L495 AbstractCegarLoop]: Abstraction has 1243 states and 1560 transitions. [2023-11-29 01:25:52,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.684210526315789) internal successors, (108), 20 states have internal predecessors, (108), 4 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 01:25:52,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1560 transitions. [2023-11-29 01:25:52,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-29 01:25:52,476 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:52,476 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 2, 1, 1, 1] [2023-11-29 01:25:52,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 01:25:52,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:25:52,677 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:25:52,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:52,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1599978083, now seen corresponding path program 3 times [2023-11-29 01:25:52,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:25:52,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890215914] [2023-11-29 01:25:52,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:52,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:25:52,684 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:25:52,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1519082030] [2023-11-29 01:25:52,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 01:25:52,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:25:52,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:25:52,686 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:25:52,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 01:25:52,729 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-29 01:25:52,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:25:52,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:25:52,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:25:52,826 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2023-11-29 01:25:52,826 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:25:52,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:25:52,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890215914] [2023-11-29 01:25:52,827 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:25:52,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519082030] [2023-11-29 01:25:52,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519082030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:25:52,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:25:52,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:25:52,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132999945] [2023-11-29 01:25:52,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:25:52,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:25:52,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:25:52,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:25:52,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:25:52,828 INFO L87 Difference]: Start difference. First operand 1243 states and 1560 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:25:53,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:53,069 INFO L93 Difference]: Finished difference Result 1250 states and 1566 transitions. [2023-11-29 01:25:53,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:25:53,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 140 [2023-11-29 01:25:53,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:53,076 INFO L225 Difference]: With dead ends: 1250 [2023-11-29 01:25:53,077 INFO L226 Difference]: Without dead ends: 1249 [2023-11-29 01:25:53,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:25:53,078 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 80 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:53,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 94 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:25:53,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2023-11-29 01:25:53,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1242. [2023-11-29 01:25:53,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1242 states, 1092 states have (on average 1.1913919413919414) internal successors, (1301), 1103 states have internal predecessors, (1301), 121 states have call successors, (121), 17 states have call predecessors, (121), 17 states have return successors, (121), 121 states have call predecessors, (121), 121 states have call successors, (121) [2023-11-29 01:25:53,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1242 states to 1242 states and 1543 transitions. [2023-11-29 01:25:53,236 INFO L78 Accepts]: Start accepts. Automaton has 1242 states and 1543 transitions. Word has length 140 [2023-11-29 01:25:53,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:53,236 INFO L495 AbstractCegarLoop]: Abstraction has 1242 states and 1543 transitions. [2023-11-29 01:25:53,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:25:53,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1242 states and 1543 transitions. [2023-11-29 01:25:53,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 01:25:53,237 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:53,237 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 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] [2023-11-29 01:25:53,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 01:25:53,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 01:25:53,438 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:25:53,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:53,438 INFO L85 PathProgramCache]: Analyzing trace with hash 734250880, now seen corresponding path program 1 times [2023-11-29 01:25:53,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:25:53,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182713913] [2023-11-29 01:25:53,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:53,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:25:53,446 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:25:53,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1750943596] [2023-11-29 01:25:53,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:53,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:25:53,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:25:53,447 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:25:53,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 01:25:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:53,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 01:25:53,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:25:53,990 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 01:25:53,990 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:25:54,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:25:54,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182713913] [2023-11-29 01:25:54,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:25:54,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750943596] [2023-11-29 01:25:54,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750943596] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:25:54,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:25:54,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 01:25:54,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930694106] [2023-11-29 01:25:54,090 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:25:54,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:25:54,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:25:54,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:25:54,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:25:54,091 INFO L87 Difference]: Start difference. First operand 1242 states and 1543 transitions. Second operand has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 01:25:54,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:54,557 INFO L93 Difference]: Finished difference Result 1282 states and 1570 transitions. [2023-11-29 01:25:54,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:25:54,557 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 153 [2023-11-29 01:25:54,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:54,561 INFO L225 Difference]: With dead ends: 1282 [2023-11-29 01:25:54,561 INFO L226 Difference]: Without dead ends: 1007 [2023-11-29 01:25:54,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:25:54,562 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 70 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:54,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 390 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:25:54,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2023-11-29 01:25:54,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 999. [2023-11-29 01:25:54,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 869 states have (on average 1.1829689298043728) internal successors, (1028), 880 states have internal predecessors, (1028), 101 states have call successors, (101), 17 states have call predecessors, (101), 17 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2023-11-29 01:25:54,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1230 transitions. [2023-11-29 01:25:54,665 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1230 transitions. Word has length 153 [2023-11-29 01:25:54,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:54,665 INFO L495 AbstractCegarLoop]: Abstraction has 999 states and 1230 transitions. [2023-11-29 01:25:54,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.75) internal successors, (81), 13 states have internal predecessors, (81), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 01:25:54,665 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1230 transitions. [2023-11-29 01:25:54,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-11-29 01:25:54,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:54,667 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 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] [2023-11-29 01:25:54,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2023-11-29 01:25:54,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 01:25:54,867 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:25:54,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:54,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1286940930, now seen corresponding path program 1 times [2023-11-29 01:25:54,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:25:54,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869718262] [2023-11-29 01:25:54,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:54,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:25:54,875 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:25:54,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1845433635] [2023-11-29 01:25:54,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:54,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:25:54,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:25:54,876 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:25:54,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 01:25:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:25:54,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 01:25:54,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:25:55,388 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 01:25:55,388 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:26:00,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:26:00,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869718262] [2023-11-29 01:26:00,795 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:26:00,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845433635] [2023-11-29 01:26:00,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845433635] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:26:00,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:26:00,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 01:26:00,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390176209] [2023-11-29 01:26:00,796 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:26:00,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:26:00,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:26:00,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:26:00,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:26:00,797 INFO L87 Difference]: Start difference. First operand 999 states and 1230 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 01:26:01,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:26:01,195 INFO L93 Difference]: Finished difference Result 1098 states and 1344 transitions. [2023-11-29 01:26:01,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:26:01,195 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 154 [2023-11-29 01:26:01,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:26:01,200 INFO L225 Difference]: With dead ends: 1098 [2023-11-29 01:26:01,200 INFO L226 Difference]: Without dead ends: 809 [2023-11-29 01:26:01,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:26:01,201 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 18 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:26:01,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 378 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:26:01,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2023-11-29 01:26:01,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 806. [2023-11-29 01:26:01,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 692 states have (on average 1.170520231213873) internal successors, (810), 703 states have internal predecessors, (810), 85 states have call successors, (85), 17 states have call predecessors, (85), 17 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2023-11-29 01:26:01,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 980 transitions. [2023-11-29 01:26:01,282 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 980 transitions. Word has length 154 [2023-11-29 01:26:01,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:26:01,282 INFO L495 AbstractCegarLoop]: Abstraction has 806 states and 980 transitions. [2023-11-29 01:26:01,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 12 states have internal predecessors, (82), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 01:26:01,283 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 980 transitions. [2023-11-29 01:26:01,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-29 01:26:01,284 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:26:01,284 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 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] [2023-11-29 01:26:01,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 01:26:01,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:01,485 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:26:01,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:26:01,485 INFO L85 PathProgramCache]: Analyzing trace with hash -200343292, now seen corresponding path program 1 times [2023-11-29 01:26:01,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:26:01,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187960277] [2023-11-29 01:26:01,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:01,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:26:01,492 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:26:01,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214227479] [2023-11-29 01:26:01,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:01,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:01,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:26:01,493 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:26:01,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 01:26:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:26:01,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 01:26:01,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:26:01,817 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 01:26:01,817 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:26:01,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:26:01,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187960277] [2023-11-29 01:26:01,904 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:26:01,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214227479] [2023-11-29 01:26:01,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214227479] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:26:01,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:26:01,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 01:26:01,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141683064] [2023-11-29 01:26:01,904 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:26:01,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 01:26:01,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:26:01,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 01:26:01,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:26:01,905 INFO L87 Difference]: Start difference. First operand 806 states and 980 transitions. Second operand has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 01:26:02,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:26:02,339 INFO L93 Difference]: Finished difference Result 866 states and 1048 transitions. [2023-11-29 01:26:02,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:26:02,339 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 156 [2023-11-29 01:26:02,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:26:02,342 INFO L225 Difference]: With dead ends: 866 [2023-11-29 01:26:02,342 INFO L226 Difference]: Without dead ends: 843 [2023-11-29 01:26:02,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2023-11-29 01:26:02,343 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 78 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:26:02,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 607 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:26:02,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2023-11-29 01:26:02,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 833. [2023-11-29 01:26:02,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 717 states have (on average 1.1757322175732217) internal successors, (843), 728 states have internal predecessors, (843), 87 states have call successors, (87), 17 states have call predecessors, (87), 17 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 01:26:02,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1017 transitions. [2023-11-29 01:26:02,434 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1017 transitions. Word has length 156 [2023-11-29 01:26:02,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:26:02,434 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1017 transitions. [2023-11-29 01:26:02,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-11-29 01:26:02,435 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1017 transitions. [2023-11-29 01:26:02,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-29 01:26:02,436 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:26:02,436 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 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] [2023-11-29 01:26:02,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2023-11-29 01:26:02,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:02,637 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:26:02,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:26:02,637 INFO L85 PathProgramCache]: Analyzing trace with hash 2003738234, now seen corresponding path program 3 times [2023-11-29 01:26:02,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:26:02,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390128710] [2023-11-29 01:26:02,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:02,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:26:02,645 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:26:02,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1635809369] [2023-11-29 01:26:02,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 01:26:02,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:02,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:26:02,646 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:26:02,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 01:26:02,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 01:26:02,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:26:02,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 01:26:02,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:26:02,936 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 82 proven. 33 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2023-11-29 01:26:02,936 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:26:08,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:26:08,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390128710] [2023-11-29 01:26:08,034 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:26:08,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635809369] [2023-11-29 01:26:08,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635809369] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:26:08,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:26:08,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 01:26:08,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993701785] [2023-11-29 01:26:08,035 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:26:08,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:26:08,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:26:08,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:26:08,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:26:08,036 INFO L87 Difference]: Start difference. First operand 833 states and 1017 transitions. Second operand has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 01:26:08,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:26:08,562 INFO L93 Difference]: Finished difference Result 903 states and 1090 transitions. [2023-11-29 01:26:08,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:26:08,562 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 157 [2023-11-29 01:26:08,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:26:08,565 INFO L225 Difference]: With dead ends: 903 [2023-11-29 01:26:08,565 INFO L226 Difference]: Without dead ends: 901 [2023-11-29 01:26:08,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2023-11-29 01:26:08,566 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 193 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:26:08,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 150 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:26:08,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2023-11-29 01:26:08,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 834. [2023-11-29 01:26:08,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 718 states have (on average 1.1740947075208914) internal successors, (843), 729 states have internal predecessors, (843), 87 states have call successors, (87), 17 states have call predecessors, (87), 17 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 01:26:08,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1017 transitions. [2023-11-29 01:26:08,650 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1017 transitions. Word has length 157 [2023-11-29 01:26:08,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:26:08,651 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 1017 transitions. [2023-11-29 01:26:08,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 01:26:08,651 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1017 transitions. [2023-11-29 01:26:08,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 01:26:08,652 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:26:08,652 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2023-11-29 01:26:08,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 01:26:08,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 01:26:08,852 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:26:08,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:26:08,853 INFO L85 PathProgramCache]: Analyzing trace with hash 300960805, now seen corresponding path program 2 times [2023-11-29 01:26:08,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:26:08,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300714163] [2023-11-29 01:26:08,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:08,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:26:08,860 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:26:08,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [764201680] [2023-11-29 01:26:08,860 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:26:08,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:08,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:26:08,862 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:26:08,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 01:26:08,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:26:08,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:26:08,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 01:26:08,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:26:09,181 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 01:26:09,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:26:09,453 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-29 01:26:09,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:26:09,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300714163] [2023-11-29 01:26:09,453 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:26:09,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764201680] [2023-11-29 01:26:09,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764201680] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:26:09,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:26:09,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 30 [2023-11-29 01:26:09,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448728726] [2023-11-29 01:26:09,454 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:26:09,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 01:26:09,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:26:09,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 01:26:09,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=671, Unknown=0, NotChecked=0, Total=870 [2023-11-29 01:26:09,456 INFO L87 Difference]: Start difference. First operand 834 states and 1017 transitions. Second operand has 30 states, 30 states have (on average 5.8) internal successors, (174), 30 states have internal predecessors, (174), 12 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2023-11-29 01:26:10,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:26:10,187 INFO L93 Difference]: Finished difference Result 1295 states and 1556 transitions. [2023-11-29 01:26:10,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-29 01:26:10,187 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.8) internal successors, (174), 30 states have internal predecessors, (174), 12 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) Word has length 162 [2023-11-29 01:26:10,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:26:10,193 INFO L225 Difference]: With dead ends: 1295 [2023-11-29 01:26:10,193 INFO L226 Difference]: Without dead ends: 1047 [2023-11-29 01:26:10,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 919 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=939, Invalid=3093, Unknown=0, NotChecked=0, Total=4032 [2023-11-29 01:26:10,196 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 264 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:26:10,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 741 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:26:10,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2023-11-29 01:26:10,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 987. [2023-11-29 01:26:10,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 855 states have (on average 1.1485380116959065) internal successors, (982), 866 states have internal predecessors, (982), 99 states have call successors, (99), 21 states have call predecessors, (99), 21 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 01:26:10,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1180 transitions. [2023-11-29 01:26:10,311 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1180 transitions. Word has length 162 [2023-11-29 01:26:10,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:26:10,311 INFO L495 AbstractCegarLoop]: Abstraction has 987 states and 1180 transitions. [2023-11-29 01:26:10,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.8) internal successors, (174), 30 states have internal predecessors, (174), 12 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2023-11-29 01:26:10,312 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1180 transitions. [2023-11-29 01:26:10,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-29 01:26:10,313 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:26:10,313 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 01:26:10,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2023-11-29 01:26:10,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 01:26:10,513 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:26:10,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:26:10,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1505941158, now seen corresponding path program 1 times [2023-11-29 01:26:10,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:26:10,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635285344] [2023-11-29 01:26:10,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:10,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:26:10,523 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:26:10,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [223039439] [2023-11-29 01:26:10,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:10,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:10,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:26:10,524 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:26:10,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 01:26:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:26:10,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 01:26:10,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:26:10,986 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 01:26:10,987 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:26:16,015 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 01:26:16,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:26:16,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635285344] [2023-11-29 01:26:16,016 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:26:16,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223039439] [2023-11-29 01:26:16,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223039439] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:26:16,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:26:16,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22 [2023-11-29 01:26:16,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802212875] [2023-11-29 01:26:16,016 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:26:16,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 01:26:16,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:26:16,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 01:26:16,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=332, Unknown=0, NotChecked=0, Total=506 [2023-11-29 01:26:16,018 INFO L87 Difference]: Start difference. First operand 987 states and 1180 transitions. Second operand has 23 states, 22 states have (on average 8.136363636363637) internal successors, (179), 23 states have internal predecessors, (179), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2023-11-29 01:26:19,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:26:19,642 INFO L93 Difference]: Finished difference Result 1418 states and 1719 transitions. [2023-11-29 01:26:19,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 01:26:19,643 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 8.136363636363637) internal successors, (179), 23 states have internal predecessors, (179), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) Word has length 163 [2023-11-29 01:26:19,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:26:19,650 INFO L225 Difference]: With dead ends: 1418 [2023-11-29 01:26:19,650 INFO L226 Difference]: Without dead ends: 1416 [2023-11-29 01:26:19,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=510, Invalid=822, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 01:26:19,651 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 557 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:26:19,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 787 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 01:26:19,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2023-11-29 01:26:19,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1186. [2023-11-29 01:26:19,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 1042 states have (on average 1.1660268714011517) internal successors, (1215), 1053 states have internal predecessors, (1215), 111 states have call successors, (111), 21 states have call predecessors, (111), 21 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2023-11-29 01:26:19,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1437 transitions. [2023-11-29 01:26:19,813 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1437 transitions. Word has length 163 [2023-11-29 01:26:19,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:26:19,813 INFO L495 AbstractCegarLoop]: Abstraction has 1186 states and 1437 transitions. [2023-11-29 01:26:19,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 8.136363636363637) internal successors, (179), 23 states have internal predecessors, (179), 12 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 12 states have call predecessors, (30), 12 states have call successors, (30) [2023-11-29 01:26:19,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1437 transitions. [2023-11-29 01:26:19,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-29 01:26:19,814 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:26:19,814 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 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, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-29 01:26:19,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 01:26:20,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:20,015 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:26:20,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:26:20,015 INFO L85 PathProgramCache]: Analyzing trace with hash 161660851, now seen corresponding path program 4 times [2023-11-29 01:26:20,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:26:20,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380284355] [2023-11-29 01:26:20,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:20,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:26:20,024 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:26:20,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [284104755] [2023-11-29 01:26:20,024 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 01:26:20,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:20,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:26:20,025 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:26:20,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 01:26:20,099 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 01:26:20,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:26:20,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:26:20,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:26:20,198 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 82 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 01:26:20,198 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:26:20,368 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 42 proven. 82 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 01:26:20,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:26:20,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380284355] [2023-11-29 01:26:20,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:26:20,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284104755] [2023-11-29 01:26:20,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284104755] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:26:20,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:26:20,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 01:26:20,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083012] [2023-11-29 01:26:20,369 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:26:20,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:26:20,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:26:20,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:26:20,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:26:20,371 INFO L87 Difference]: Start difference. First operand 1186 states and 1437 transitions. Second operand has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 5 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2023-11-29 01:26:20,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:26:20,613 INFO L93 Difference]: Finished difference Result 1210 states and 1454 transitions. [2023-11-29 01:26:20,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:26:20,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 5 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) Word has length 173 [2023-11-29 01:26:20,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:26:20,618 INFO L225 Difference]: With dead ends: 1210 [2023-11-29 01:26:20,618 INFO L226 Difference]: Without dead ends: 957 [2023-11-29 01:26:20,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:26:20,619 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 13 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:26:20,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 323 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:26:20,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2023-11-29 01:26:20,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 952. [2023-11-29 01:26:20,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 830 states have (on average 1.1722891566265061) internal successors, (973), 841 states have internal predecessors, (973), 93 states have call successors, (93), 17 states have call predecessors, (93), 17 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2023-11-29 01:26:20,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1159 transitions. [2023-11-29 01:26:20,751 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1159 transitions. Word has length 173 [2023-11-29 01:26:20,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:26:20,751 INFO L495 AbstractCegarLoop]: Abstraction has 952 states and 1159 transitions. [2023-11-29 01:26:20,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 5 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2023-11-29 01:26:20,751 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1159 transitions. [2023-11-29 01:26:20,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-29 01:26:20,752 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:26:20,752 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:26:20,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 01:26:20,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2023-11-29 01:26:20,953 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:26:20,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:26:20,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1934634012, now seen corresponding path program 1 times [2023-11-29 01:26:20,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:26:20,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066673760] [2023-11-29 01:26:20,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:20,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:26:20,963 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:26:20,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1184883652] [2023-11-29 01:26:20,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:20,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:20,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:26:20,965 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:26:20,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 01:26:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:26:21,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:26:21,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:26:21,346 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 72 proven. 46 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 01:26:21,346 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:26:21,783 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 38 proven. 46 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2023-11-29 01:26:21,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:26:21,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066673760] [2023-11-29 01:26:21,784 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:26:21,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184883652] [2023-11-29 01:26:21,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184883652] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:26:21,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:26:21,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 12 [2023-11-29 01:26:21,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240387700] [2023-11-29 01:26:21,784 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:26:21,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:26:21,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:26:21,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:26:21,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:26:21,786 INFO L87 Difference]: Start difference. First operand 952 states and 1159 transitions. Second operand has 13 states, 12 states have (on average 13.666666666666666) internal successors, (164), 13 states have internal predecessors, (164), 9 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) [2023-11-29 01:26:22,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:26:22,627 INFO L93 Difference]: Finished difference Result 1477 states and 1838 transitions. [2023-11-29 01:26:22,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 01:26:22,627 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 13.666666666666666) internal successors, (164), 13 states have internal predecessors, (164), 9 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) Word has length 179 [2023-11-29 01:26:22,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:26:22,631 INFO L225 Difference]: With dead ends: 1477 [2023-11-29 01:26:22,632 INFO L226 Difference]: Without dead ends: 1005 [2023-11-29 01:26:22,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 349 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=245, Invalid=457, Unknown=0, NotChecked=0, Total=702 [2023-11-29 01:26:22,633 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 392 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:26:22,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 442 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:26:22,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2023-11-29 01:26:22,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 779. [2023-11-29 01:26:22,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 674 states have (on average 1.1617210682492582) internal successors, (783), 684 states have internal predecessors, (783), 77 states have call successors, (77), 17 states have call predecessors, (77), 17 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2023-11-29 01:26:22,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 937 transitions. [2023-11-29 01:26:22,740 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 937 transitions. Word has length 179 [2023-11-29 01:26:22,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:26:22,740 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 937 transitions. [2023-11-29 01:26:22,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 13.666666666666666) internal successors, (164), 13 states have internal predecessors, (164), 9 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 9 states have call predecessors, (30), 9 states have call successors, (30) [2023-11-29 01:26:22,740 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 937 transitions. [2023-11-29 01:26:22,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-11-29 01:26:22,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:26:22,741 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:26:22,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2023-11-29 01:26:22,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2023-11-29 01:26:22,942 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:26:22,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:26:22,942 INFO L85 PathProgramCache]: Analyzing trace with hash 155886755, now seen corresponding path program 2 times [2023-11-29 01:26:22,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:26:22,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687905138] [2023-11-29 01:26:22,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:22,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:26:22,951 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:26:22,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1723477080] [2023-11-29 01:26:22,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:26:22,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:22,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:26:22,953 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:26:22,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 01:26:23,027 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:26:23,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:26:23,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 01:26:23,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:26:23,228 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 01:26:23,229 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:26:23,430 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 72 proven. 44 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 01:26:23,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:26:23,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687905138] [2023-11-29 01:26:23,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:26:23,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723477080] [2023-11-29 01:26:23,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723477080] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:26:23,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:26:23,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 13 [2023-11-29 01:26:23,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615046680] [2023-11-29 01:26:23,431 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:26:23,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:26:23,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:26:23,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:26:23,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:26:23,433 INFO L87 Difference]: Start difference. First operand 779 states and 937 transitions. Second operand has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-29 01:26:23,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:26:23,897 INFO L93 Difference]: Finished difference Result 885 states and 1057 transitions. [2023-11-29 01:26:23,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 01:26:23,897 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) Word has length 180 [2023-11-29 01:26:23,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:26:23,900 INFO L225 Difference]: With dead ends: 885 [2023-11-29 01:26:23,900 INFO L226 Difference]: Without dead ends: 879 [2023-11-29 01:26:23,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 341 SyntacticMatches, 6 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:26:23,901 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 95 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:26:23,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 583 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:26:23,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2023-11-29 01:26:24,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 820. [2023-11-29 01:26:24,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 705 states have (on average 1.1574468085106382) internal successors, (816), 715 states have internal predecessors, (816), 87 states have call successors, (87), 17 states have call predecessors, (87), 17 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2023-11-29 01:26:24,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 990 transitions. [2023-11-29 01:26:24,019 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 990 transitions. Word has length 180 [2023-11-29 01:26:24,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:26:24,019 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 990 transitions. [2023-11-29 01:26:24,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-29 01:26:24,019 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 990 transitions. [2023-11-29 01:26:24,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-29 01:26:24,020 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:26:24,020 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1, 1, 1] [2023-11-29 01:26:24,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 01:26:24,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2023-11-29 01:26:24,221 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:26:24,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:26:24,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1511388205, now seen corresponding path program 1 times [2023-11-29 01:26:24,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:26:24,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895656310] [2023-11-29 01:26:24,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:24,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:26:24,228 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:26:24,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2105453561] [2023-11-29 01:26:24,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:24,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:24,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:26:24,230 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:26:24,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 01:26:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:26:24,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 01:26:24,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:26:24,700 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 01:26:24,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:26:30,088 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 01:26:30,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:26:30,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895656310] [2023-11-29 01:26:30,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:26:30,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105453561] [2023-11-29 01:26:30,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105453561] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:26:30,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:26:30,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 18 [2023-11-29 01:26:30,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249961660] [2023-11-29 01:26:30,089 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:26:30,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 01:26:30,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:26:30,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 01:26:30,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-11-29 01:26:30,091 INFO L87 Difference]: Start difference. First operand 820 states and 990 transitions. Second operand has 19 states, 18 states have (on average 10.944444444444445) internal successors, (197), 19 states have internal predecessors, (197), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2023-11-29 01:26:33,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:26:33,335 INFO L93 Difference]: Finished difference Result 1463 states and 1736 transitions. [2023-11-29 01:26:33,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 01:26:33,335 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 10.944444444444445) internal successors, (197), 19 states have internal predecessors, (197), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 187 [2023-11-29 01:26:33,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:26:33,338 INFO L225 Difference]: With dead ends: 1463 [2023-11-29 01:26:33,338 INFO L226 Difference]: Without dead ends: 1462 [2023-11-29 01:26:33,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=325, Invalid=545, Unknown=0, NotChecked=0, Total=870 [2023-11-29 01:26:33,339 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 864 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:26:33,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 862 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 01:26:33,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2023-11-29 01:26:33,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1248. [2023-11-29 01:26:33,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 1095 states have (on average 1.1479452054794521) internal successors, (1257), 1105 states have internal predecessors, (1257), 125 states have call successors, (125), 17 states have call predecessors, (125), 17 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2023-11-29 01:26:33,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1507 transitions. [2023-11-29 01:26:33,545 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1507 transitions. Word has length 187 [2023-11-29 01:26:33,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:26:33,545 INFO L495 AbstractCegarLoop]: Abstraction has 1248 states and 1507 transitions. [2023-11-29 01:26:33,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 10.944444444444445) internal successors, (197), 19 states have internal predecessors, (197), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2023-11-29 01:26:33,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1507 transitions. [2023-11-29 01:26:33,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-29 01:26:33,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:26:33,547 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 1, 1, 1] [2023-11-29 01:26:33,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 01:26:33,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-11-29 01:26:33,747 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:26:33,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:26:33,748 INFO L85 PathProgramCache]: Analyzing trace with hash 28653170, now seen corresponding path program 5 times [2023-11-29 01:26:33,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:26:33,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684456995] [2023-11-29 01:26:33,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:33,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:26:33,755 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:26:33,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [915846361] [2023-11-29 01:26:33,755 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 01:26:33,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:33,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:26:33,756 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:26:33,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 01:26:33,915 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2023-11-29 01:26:33,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:26:33,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-29 01:26:33,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:26:34,783 INFO L134 CoverageAnalysis]: Checked inductivity of 774 backedges. 90 proven. 207 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2023-11-29 01:26:34,783 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:26:35,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:26:35,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684456995] [2023-11-29 01:26:35,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:26:35,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915846361] [2023-11-29 01:26:35,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915846361] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:26:35,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:26:35,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 01:26:35,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355445383] [2023-11-29 01:26:35,149 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:26:35,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 01:26:35,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:26:35,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 01:26:35,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:26:35,150 INFO L87 Difference]: Start difference. First operand 1248 states and 1507 transitions. Second operand has 18 states, 17 states have (on average 6.764705882352941) internal successors, (115), 18 states have internal predecessors, (115), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) [2023-11-29 01:26:36,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:26:36,341 INFO L93 Difference]: Finished difference Result 1371 states and 1653 transitions. [2023-11-29 01:26:36,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 01:26:36,341 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.764705882352941) internal successors, (115), 18 states have internal predecessors, (115), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) Word has length 199 [2023-11-29 01:26:36,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:26:36,343 INFO L225 Difference]: With dead ends: 1371 [2023-11-29 01:26:36,344 INFO L226 Difference]: Without dead ends: 1370 [2023-11-29 01:26:36,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2023-11-29 01:26:36,344 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 75 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:26:36,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1306 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1648 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 01:26:36,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2023-11-29 01:26:36,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1248. [2023-11-29 01:26:36,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 1095 states have (on average 1.1470319634703197) internal successors, (1256), 1105 states have internal predecessors, (1256), 125 states have call successors, (125), 17 states have call predecessors, (125), 17 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2023-11-29 01:26:36,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1506 transitions. [2023-11-29 01:26:36,551 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1506 transitions. Word has length 199 [2023-11-29 01:26:36,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:26:36,551 INFO L495 AbstractCegarLoop]: Abstraction has 1248 states and 1506 transitions. [2023-11-29 01:26:36,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.764705882352941) internal successors, (115), 18 states have internal predecessors, (115), 8 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 7 states have call predecessors, (18), 8 states have call successors, (18) [2023-11-29 01:26:36,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1506 transitions. [2023-11-29 01:26:36,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-11-29 01:26:36,553 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:26:36,553 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:26:36,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2023-11-29 01:26:36,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:36,754 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:26:36,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:26:36,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1611827461, now seen corresponding path program 3 times [2023-11-29 01:26:36,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:26:36,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634131811] [2023-11-29 01:26:36,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:36,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:26:36,761 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:26:36,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [319207887] [2023-11-29 01:26:36,761 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 01:26:36,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:36,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:26:36,762 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:26:36,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 01:26:36,818 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 01:26:36,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:26:36,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 01:26:36,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:26:37,046 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 99 proven. 45 refuted. 0 times theorem prover too weak. 781 trivial. 0 not checked. [2023-11-29 01:26:37,046 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:26:37,357 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2023-11-29 01:26:37,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:26:37,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634131811] [2023-11-29 01:26:37,357 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:26:37,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319207887] [2023-11-29 01:26:37,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319207887] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:26:37,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:26:37,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-11-29 01:26:37,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630526961] [2023-11-29 01:26:37,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:26:37,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:26:37,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:26:37,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:26:37,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:26:37,359 INFO L87 Difference]: Start difference. First operand 1248 states and 1506 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 01:26:38,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:26:38,008 INFO L93 Difference]: Finished difference Result 1260 states and 1514 transitions. [2023-11-29 01:26:38,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:26:38,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 206 [2023-11-29 01:26:38,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:26:38,011 INFO L225 Difference]: With dead ends: 1260 [2023-11-29 01:26:38,011 INFO L226 Difference]: Without dead ends: 1259 [2023-11-29 01:26:38,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-29 01:26:38,011 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 152 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:26:38,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 113 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:26:38,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2023-11-29 01:26:38,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1249. [2023-11-29 01:26:38,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1096 states have (on average 1.1468978102189782) internal successors, (1257), 1106 states have internal predecessors, (1257), 125 states have call successors, (125), 17 states have call predecessors, (125), 17 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2023-11-29 01:26:38,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1507 transitions. [2023-11-29 01:26:38,227 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1507 transitions. Word has length 206 [2023-11-29 01:26:38,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:26:38,227 INFO L495 AbstractCegarLoop]: Abstraction has 1249 states and 1507 transitions. [2023-11-29 01:26:38,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 01:26:38,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1507 transitions. [2023-11-29 01:26:38,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-29 01:26:38,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:26:38,229 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:26:38,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2023-11-29 01:26:38,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-11-29 01:26:38,429 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:26:38,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:26:38,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1516999609, now seen corresponding path program 2 times [2023-11-29 01:26:38,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:26:38,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510180631] [2023-11-29 01:26:38,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:38,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:26:38,438 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:26:38,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1173969134] [2023-11-29 01:26:38,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:26:38,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:38,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:26:38,440 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:26:38,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 01:26:38,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:26:38,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:26:38,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 01:26:38,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:26:38,953 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 16 proven. 149 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 01:26:38,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:26:39,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:26:39,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510180631] [2023-11-29 01:26:39,049 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:26:39,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173969134] [2023-11-29 01:26:39,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173969134] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:26:39,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:26:39,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 01:26:39,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470329250] [2023-11-29 01:26:39,050 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:26:39,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:26:39,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:26:39,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:26:39,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:26:39,051 INFO L87 Difference]: Start difference. First operand 1249 states and 1507 transitions. Second operand has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-11-29 01:26:39,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:26:39,736 INFO L93 Difference]: Finished difference Result 1364 states and 1647 transitions. [2023-11-29 01:26:39,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 01:26:39,736 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 208 [2023-11-29 01:26:39,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:26:39,738 INFO L225 Difference]: With dead ends: 1364 [2023-11-29 01:26:39,738 INFO L226 Difference]: Without dead ends: 1353 [2023-11-29 01:26:39,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2023-11-29 01:26:39,739 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 107 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:26:39,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 870 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:26:39,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2023-11-29 01:26:40,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1319. [2023-11-29 01:26:40,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1158 states have (on average 1.1468048359240068) internal successors, (1328), 1168 states have internal predecessors, (1328), 133 states have call successors, (133), 17 states have call predecessors, (133), 17 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-29 01:26:40,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1594 transitions. [2023-11-29 01:26:40,006 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1594 transitions. Word has length 208 [2023-11-29 01:26:40,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:26:40,006 INFO L495 AbstractCegarLoop]: Abstraction has 1319 states and 1594 transitions. [2023-11-29 01:26:40,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.538461538461538) internal successors, (111), 14 states have internal predecessors, (111), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-11-29 01:26:40,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1594 transitions. [2023-11-29 01:26:40,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-11-29 01:26:40,008 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:26:40,008 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 5, 5, 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, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:26:40,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2023-11-29 01:26:40,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-11-29 01:26:40,209 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:26:40,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:26:40,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1587921210, now seen corresponding path program 1 times [2023-11-29 01:26:40,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:26:40,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839322729] [2023-11-29 01:26:40,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:40,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:26:40,220 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:26:40,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2127494628] [2023-11-29 01:26:40,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:40,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:40,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:26:40,222 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:26:40,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 01:26:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:26:40,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 01:26:40,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:26:40,594 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 0 proven. 888 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 01:26:40,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:26:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 01:26:40,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:26:40,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839322729] [2023-11-29 01:26:40,968 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:26:40,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127494628] [2023-11-29 01:26:40,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127494628] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:26:40,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:26:40,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 37 [2023-11-29 01:26:40,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156572095] [2023-11-29 01:26:40,969 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:26:40,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-29 01:26:40,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:26:40,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-29 01:26:40,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=1107, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 01:26:40,970 INFO L87 Difference]: Start difference. First operand 1319 states and 1594 transitions. Second operand has 38 states, 37 states have (on average 6.783783783783784) internal successors, (251), 38 states have internal predecessors, (251), 16 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 16 states have call predecessors, (40), 16 states have call successors, (40) [2023-11-29 01:26:42,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:26:42,293 INFO L93 Difference]: Finished difference Result 2794 states and 3453 transitions. [2023-11-29 01:26:42,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-11-29 01:26:42,293 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 6.783783783783784) internal successors, (251), 38 states have internal predecessors, (251), 16 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 16 states have call predecessors, (40), 16 states have call successors, (40) Word has length 212 [2023-11-29 01:26:42,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:26:42,298 INFO L225 Difference]: With dead ends: 2794 [2023-11-29 01:26:42,298 INFO L226 Difference]: Without dead ends: 2784 [2023-11-29 01:26:42,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1411 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1310, Invalid=4542, Unknown=0, NotChecked=0, Total=5852 [2023-11-29 01:26:42,300 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 410 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:26:42,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 805 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:26:42,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2023-11-29 01:26:42,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2703. [2023-11-29 01:26:42,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2703 states, 2409 states have (on average 1.1544209215442092) internal successors, (2781), 2420 states have internal predecessors, (2781), 255 states have call successors, (255), 28 states have call predecessors, (255), 28 states have return successors, (255), 254 states have call predecessors, (255), 255 states have call successors, (255) [2023-11-29 01:26:42,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2703 states to 2703 states and 3291 transitions. [2023-11-29 01:26:42,809 INFO L78 Accepts]: Start accepts. Automaton has 2703 states and 3291 transitions. Word has length 212 [2023-11-29 01:26:42,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:26:42,809 INFO L495 AbstractCegarLoop]: Abstraction has 2703 states and 3291 transitions. [2023-11-29 01:26:42,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 6.783783783783784) internal successors, (251), 38 states have internal predecessors, (251), 16 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 16 states have call predecessors, (40), 16 states have call successors, (40) [2023-11-29 01:26:42,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2703 states and 3291 transitions. [2023-11-29 01:26:42,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-29 01:26:42,811 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:26:42,811 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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] [2023-11-29 01:26:42,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2023-11-29 01:26:43,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 01:26:43,011 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:26:43,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:26:43,012 INFO L85 PathProgramCache]: Analyzing trace with hash 2114717608, now seen corresponding path program 1 times [2023-11-29 01:26:43,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:26:43,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925707248] [2023-11-29 01:26:43,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:43,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:26:43,019 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:26:43,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1679777132] [2023-11-29 01:26:43,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:43,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:43,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:26:43,020 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:26:43,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 01:26:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:26:43,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 01:26:43,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:26:43,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 1060 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 01:26:43,408 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:26:43,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-29 01:26:43,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:26:43,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925707248] [2023-11-29 01:26:43,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:26:43,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679777132] [2023-11-29 01:26:43,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679777132] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:26:43,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:26:43,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 38 [2023-11-29 01:26:43,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728095811] [2023-11-29 01:26:43,802 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:26:43,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-29 01:26:43,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:26:43,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-29 01:26:43,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 01:26:43,804 INFO L87 Difference]: Start difference. First operand 2703 states and 3291 transitions. Second operand has 38 states, 38 states have (on average 6.157894736842105) internal successors, (234), 38 states have internal predecessors, (234), 16 states have call successors, (44), 9 states have call predecessors, (44), 9 states have return successors, (44), 16 states have call predecessors, (44), 16 states have call successors, (44) [2023-11-29 01:26:45,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:26:45,221 INFO L93 Difference]: Finished difference Result 3359 states and 4098 transitions. [2023-11-29 01:26:45,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-11-29 01:26:45,222 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 6.157894736842105) internal successors, (234), 38 states have internal predecessors, (234), 16 states have call successors, (44), 9 states have call predecessors, (44), 9 states have return successors, (44), 16 states have call predecessors, (44), 16 states have call successors, (44) Word has length 214 [2023-11-29 01:26:45,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:26:45,226 INFO L225 Difference]: With dead ends: 3359 [2023-11-29 01:26:45,226 INFO L226 Difference]: Without dead ends: 3152 [2023-11-29 01:26:45,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1555 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1460, Invalid=5020, Unknown=0, NotChecked=0, Total=6480 [2023-11-29 01:26:45,228 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 441 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:26:45,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 865 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:26:45,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3152 states. [2023-11-29 01:26:45,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3152 to 2997. [2023-11-29 01:26:45,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2997 states, 2673 states have (on average 1.1481481481481481) internal successors, (3069), 2683 states have internal predecessors, (3069), 281 states have call successors, (281), 32 states have call predecessors, (281), 32 states have return successors, (281), 281 states have call predecessors, (281), 281 states have call successors, (281) [2023-11-29 01:26:45,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2997 states to 2997 states and 3631 transitions. [2023-11-29 01:26:45,815 INFO L78 Accepts]: Start accepts. Automaton has 2997 states and 3631 transitions. Word has length 214 [2023-11-29 01:26:45,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:26:45,815 INFO L495 AbstractCegarLoop]: Abstraction has 2997 states and 3631 transitions. [2023-11-29 01:26:45,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 6.157894736842105) internal successors, (234), 38 states have internal predecessors, (234), 16 states have call successors, (44), 9 states have call predecessors, (44), 9 states have return successors, (44), 16 states have call predecessors, (44), 16 states have call successors, (44) [2023-11-29 01:26:45,815 INFO L276 IsEmpty]: Start isEmpty. Operand 2997 states and 3631 transitions. [2023-11-29 01:26:45,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-29 01:26:45,817 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:26:45,817 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1] [2023-11-29 01:26:45,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-11-29 01:26:46,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 01:26:46,017 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:26:46,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:26:46,018 INFO L85 PathProgramCache]: Analyzing trace with hash -56598874, now seen corresponding path program 2 times [2023-11-29 01:26:46,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:26:46,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156995701] [2023-11-29 01:26:46,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:26:46,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:26:46,026 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:26:46,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250273048] [2023-11-29 01:26:46,026 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:26:46,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:26:46,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:26:46,027 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:26:46,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 01:26:46,113 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:26:46,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:26:46,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-29 01:26:46,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:26:46,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 01:26:46,856 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:26:59,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1030 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 01:26:59,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:26:59,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156995701] [2023-11-29 01:26:59,100 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:26:59,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250273048] [2023-11-29 01:26:59,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250273048] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:26:59,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:26:59,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 35 [2023-11-29 01:26:59,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326310173] [2023-11-29 01:26:59,100 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:26:59,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-29 01:26:59,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:26:59,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-29 01:26:59,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=372, Invalid=888, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 01:26:59,102 INFO L87 Difference]: Start difference. First operand 2997 states and 3631 transitions. Second operand has 36 states, 35 states have (on average 6.485714285714286) internal successors, (227), 36 states have internal predecessors, (227), 16 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 16 states have call predecessors, (42), 16 states have call successors, (42) [2023-11-29 01:27:45,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:27:45,581 INFO L93 Difference]: Finished difference Result 4396 states and 5290 transitions. [2023-11-29 01:27:45,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2023-11-29 01:27:45,582 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 6.485714285714286) internal successors, (227), 36 states have internal predecessors, (227), 16 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 16 states have call predecessors, (42), 16 states have call successors, (42) Word has length 217 [2023-11-29 01:27:45,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:27:45,588 INFO L225 Difference]: With dead ends: 4396 [2023-11-29 01:27:45,588 INFO L226 Difference]: Without dead ends: 4395 [2023-11-29 01:27:45,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 394 SyntacticMatches, 4 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3838 ImplicationChecksByTransitivity, 38.0s TimeCoverageRelationStatistics Valid=3763, Invalid=9577, Unknown=0, NotChecked=0, Total=13340 [2023-11-29 01:27:45,590 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 2414 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 2860 mSolverCounterSat, 537 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2418 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 3397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 537 IncrementalHoareTripleChecker+Valid, 2860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:27:45,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2418 Valid, 1370 Invalid, 3397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [537 Valid, 2860 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2023-11-29 01:27:45,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4395 states. [2023-11-29 01:27:46,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4395 to 3589. [2023-11-29 01:27:46,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3589 states, 3215 states have (on average 1.146189735614308) internal successors, (3685), 3225 states have internal predecessors, (3685), 331 states have call successors, (331), 32 states have call predecessors, (331), 32 states have return successors, (331), 331 states have call predecessors, (331), 331 states have call successors, (331) [2023-11-29 01:27:46,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3589 states to 3589 states and 4347 transitions. [2023-11-29 01:27:46,362 INFO L78 Accepts]: Start accepts. Automaton has 3589 states and 4347 transitions. Word has length 217 [2023-11-29 01:27:46,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:27:46,362 INFO L495 AbstractCegarLoop]: Abstraction has 3589 states and 4347 transitions. [2023-11-29 01:27:46,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 6.485714285714286) internal successors, (227), 36 states have internal predecessors, (227), 16 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 16 states have call predecessors, (42), 16 states have call successors, (42) [2023-11-29 01:27:46,363 INFO L276 IsEmpty]: Start isEmpty. Operand 3589 states and 4347 transitions. [2023-11-29 01:27:46,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-29 01:27:46,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:27:46,364 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 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, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2023-11-29 01:27:46,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2023-11-29 01:27:46,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2023-11-29 01:27:46,565 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:27:46,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:27:46,565 INFO L85 PathProgramCache]: Analyzing trace with hash -186534787, now seen corresponding path program 2 times [2023-11-29 01:27:46,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:27:46,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815512908] [2023-11-29 01:27:46,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:27:46,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:27:46,575 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:27:46,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1296305645] [2023-11-29 01:27:46,575 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:27:46,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:27:46,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:27:46,576 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:27:46,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 01:27:46,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:27:46,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:27:46,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 01:27:46,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:27:47,316 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-29 01:27:47,316 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:27:55,510 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (div |c_ULTIMATE.start_main_~d~0#1| 2))) (let ((.cse5 (* (div |c_ULTIMATE.start_main_~d~0#1| 4) 3)) (.cse2 (* 2 |c_ULTIMATE.start_main_~r~0#1|)) (.cse3 (* .cse0 2)) (.cse4 (* 2 |c_ULTIMATE.start_main_~d~0#1|)) (.cse1 (div |c_ULTIMATE.start_main_~d~0#1| 8))) (and (or (and (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< |c_ULTIMATE.start_main_~r~0#1| (+ |c_ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_86|)) (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) .cse0))) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse0 (* .cse1 3) 2147483650 |c_ULTIMATE.start_main_~d~0#1|)) (<= .cse2 (+ .cse3 .cse4 .cse5 4294967299)) (<= |c_ULTIMATE.start_main_~r~0#1| (+ |c_ULTIMATE.start_main_~d~0#1| 8 (* 7 (div (+ .cse0 1227133511) 4))))) (not (= (mod |c_ULTIMATE.start_main_~d~0#1| 2) 0))) (or (< .cse2 (+ .cse3 4294967295 .cse4 .cse5)) (< |c_ULTIMATE.start_main_~d~0#1| 0)) (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< |c_ULTIMATE.start_main_~r~0#1| (+ |c_ULTIMATE.start_main_~d~0#1| |v_ULTIMATE.start_main_~r~0#1_86|)) (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) (+ .cse0 1)))) (<= .cse2 (+ .cse3 .cse4 (* 3 (div (+ (- 1) .cse0) 2)) 4294967304)) (<= |c_ULTIMATE.start_main_~r~0#1| (+ (* 7 .cse1) 2147483654 |c_ULTIMATE.start_main_~d~0#1|)) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse0 2147483654 (* 3 (div (+ .cse0 (- 3)) 4)) |c_ULTIMATE.start_main_~d~0#1|))))) is different from false [2023-11-29 01:28:36,211 WARN L293 SmtUtils]: Spent 25.47s on a formula simplification. DAG size of input: 39 DAG size of output: 21 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 01:29:03,478 WARN L293 SmtUtils]: Spent 19.47s on a formula simplification. DAG size of input: 33 DAG size of output: 19 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 01:29:26,628 WARN L293 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 16 DAG size of output: 11 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 01:29:42,936 WARN L293 SmtUtils]: Spent 15.57s on a formula simplification. DAG size of input: 22 DAG size of output: 19 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 01:30:00,857 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (div |c_ULTIMATE.start_main_~d~0#1| 2))) (let ((.cse2 (div (+ (- 1) .cse4) 2))) (let ((.cse6 (div (+ |c_ULTIMATE.start_main_~r~0#1| (- 2147483651)) 3)) (.cse9 (* (div (+ (- 2147483648) |c_ULTIMATE.start_main_~r~0#1|) 15) 8)) (.cse5 (* 6 .cse2)) (.cse1 (div |c_ULTIMATE.start_main_~d~0#1| 4)) (.cse3 (* 2 |c_ULTIMATE.start_main_~r~0#1|))) (let ((.cse0 (+ (* (div (+ (- 4294967306) .cse3) 3) 2) 1)) (.cse14 (* .cse1 2)) (.cse10 (<= .cse3 (+ 4294967308 (* 3 (div (+ (- 1) .cse2) 2)) .cse5))) (.cse11 (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) (+ .cse2 1)) (< |c_ULTIMATE.start_main_~r~0#1| (+ 2 (* 2 .cse2) |v_ULTIMATE.start_main_~r~0#1_86|))))) (.cse12 (<= (+ .cse9 1) .cse4)) (.cse15 (+ .cse1 1)) (.cse13 (<= (+ 7 (* .cse6 8) (* (div (* (- 1) .cse4) 2) 8)) .cse4)) (.cse7 (* .cse4 (- 3))) (.cse8 (= (mod |c_ULTIMATE.start_main_~d~0#1| 2) 0)) (.cse16 (* .cse4 (- 2)))) (and (<= .cse0 (+ (* .cse1 4) .cse2)) (or (< |c_ULTIMATE.start_main_~r~0#1| 2147483648) (< .cse3 (+ (* 3 (div (+ .cse4 (- 3)) 4)) .cse5 4294967304))) (<= .cse3 (+ (* (div (+ .cse4 (- 5)) 8) 6) (* .cse4 3) 4294967311)) (<= (* 2 .cse6) (+ .cse4 (* 2 (div (+ .cse4 (- 6)) 8)) 2)) (or (< 0 (+ |c_ULTIMATE.start_main_~d~0#1| 1)) (and (<= .cse0 (* 5 .cse1)) (<= (+ 5 (* 8 (div (+ .cse7 (- 4294967306) .cse3) 6))) .cse4)) .cse8) (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) (+ 2 .cse2)) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 |v_ULTIMATE.start_main_~r~0#1_86| 1)))) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 (* 7 (div (+ .cse4 (- 7)) 8)) 2147483662)) (<= .cse9 .cse4) (or (< |c_ULTIMATE.start_main_~d~0#1| 0) (and .cse10 .cse11 .cse12 .cse13 (<= .cse3 (+ (* (div |c_ULTIMATE.start_main_~d~0#1| 8) 3) (* .cse4 2) .cse14 4294967294)))) (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) .cse15) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse14 2 |v_ULTIMATE.start_main_~r~0#1_86|)))) (or (and (<= (+ 2 (* (div (+ .cse16 (- 4294967302) .cse3) 7) 4)) .cse4) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 2147483654 (* 7 (div |c_ULTIMATE.start_main_~d~0#1| 16)))) .cse10 .cse11 .cse12 (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) .cse15) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 |v_ULTIMATE.start_main_~r~0#1_86|)))) .cse13 (<= (+ (* 8 (div (+ (- 4294967303) .cse7 .cse3) 6)) 6) .cse4)) (not .cse8)) (<= (+ (* (div (+ .cse16 (- 4294967304) .cse3) 7) 4) 1) .cse4)))))) is different from false [2023-11-29 01:30:33,733 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (div |c_ULTIMATE.start_main_~d~0#1| 2)) (.cse1 (div |c_ULTIMATE.start_main_~d~0#1| 4))) (let ((.cse7 (* .cse1 2)) (.cse2 (div (+ (- 1) .cse4) 2)) (.cse6 (* (div (+ (- 2147483648) |c_ULTIMATE.start_main_~r~0#1|) 15) 8)) (.cse8 (+ .cse1 1)) (.cse3 (div (+ |c_ULTIMATE.start_main_~r~0#1| (- 2147483651)) 3)) (.cse5 (* .cse4 (- 3))) (.cse9 (* .cse4 (- 2))) (.cse0 (* 2 |c_ULTIMATE.start_main_~r~0#1|))) (and (<= (+ (* (div (+ (- 4294967306) .cse0) 3) 2) 1) (+ (* .cse1 4) .cse2)) (<= (* 2 .cse3) (+ .cse4 (* 2 (div (+ .cse4 (- 6)) 8)) 2)) (<= (+ 5 (* 8 (div (+ .cse5 (- 4294967306) .cse0) 6))) .cse4) (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) (+ 2 .cse2)) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 |v_ULTIMATE.start_main_~r~0#1_86| 1)))) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 (* 7 (div (+ .cse4 (- 7)) 8)) 2147483662)) (<= .cse6 .cse4) (or (< |c_ULTIMATE.start_main_~d~0#1| 0) (< .cse0 (+ (* (div |c_ULTIMATE.start_main_~d~0#1| 8) 3) (* .cse4 2) .cse7 4294967295))) (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) .cse8) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse7 2 |v_ULTIMATE.start_main_~r~0#1_86|)))) (or (and (<= (+ 2 (* (div (+ .cse9 (- 4294967302) .cse0) 7) 4)) .cse4) (<= |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 2147483654 (* 7 (div |c_ULTIMATE.start_main_~d~0#1| 16)))) (<= .cse0 (+ 4294967308 (* 3 (div (+ (- 1) .cse2) 2)) (* 6 .cse2))) (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) (+ .cse2 1)) (< |c_ULTIMATE.start_main_~r~0#1| (+ 2 (* 2 .cse2) |v_ULTIMATE.start_main_~r~0#1_86|)))) (<= (+ .cse6 1) .cse4) (forall ((|v_ULTIMATE.start_main_~r~0#1_86| Int)) (or (< (* (div (+ (- 4294967297) (* 2 |v_ULTIMATE.start_main_~r~0#1_86|)) 7) 2) .cse8) (< |c_ULTIMATE.start_main_~r~0#1| (+ .cse4 |v_ULTIMATE.start_main_~r~0#1_86|)))) (<= (+ 7 (* .cse3 8) (* (div (* (- 1) .cse4) 2) 8)) .cse4) (<= (+ (* 8 (div (+ (- 4294967303) .cse5 .cse0) 6)) 6) .cse4)) (not (= (mod |c_ULTIMATE.start_main_~d~0#1| 2) 0))) (<= (+ (* (div (+ .cse9 (- 4294967304) .cse0) 7) 4) 1) .cse4)))) is different from false [2023-11-29 01:31:15,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:31:15,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815512908] [2023-11-29 01:31:15,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:31:15,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296305645] [2023-11-29 01:31:15,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296305645] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:31:15,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:31:15,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 01:31:15,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105417017] [2023-11-29 01:31:15,715 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:31:15,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 01:31:15,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:31:15,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 01:31:15,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=403, Unknown=3, NotChecked=138, Total=702 [2023-11-29 01:31:15,716 INFO L87 Difference]: Start difference. First operand 3589 states and 4347 transitions. Second operand has 18 states, 17 states have (on average 7.176470588235294) internal successors, (122), 18 states have internal predecessors, (122), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 01:31:17,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:31:17,421 INFO L93 Difference]: Finished difference Result 3818 states and 4638 transitions. [2023-11-29 01:31:17,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 01:31:17,422 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 7.176470588235294) internal successors, (122), 18 states have internal predecessors, (122), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 219 [2023-11-29 01:31:17,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:31:17,427 INFO L225 Difference]: With dead ends: 3818 [2023-11-29 01:31:17,427 INFO L226 Difference]: Without dead ends: 3817 [2023-11-29 01:31:17,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=252, Invalid=627, Unknown=3, NotChecked=174, Total=1056 [2023-11-29 01:31:17,428 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 59 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:31:17,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 718 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 01:31:17,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3817 states. [2023-11-29 01:31:18,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3817 to 3439. [2023-11-29 01:31:18,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3083 states have (on average 1.1417450535192994) internal successors, (3520), 3093 states have internal predecessors, (3520), 313 states have call successors, (313), 32 states have call predecessors, (313), 32 states have return successors, (313), 313 states have call predecessors, (313), 313 states have call successors, (313) [2023-11-29 01:31:18,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 4146 transitions. [2023-11-29 01:31:18,215 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 4146 transitions. Word has length 219 [2023-11-29 01:31:18,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:31:18,215 INFO L495 AbstractCegarLoop]: Abstraction has 3439 states and 4146 transitions. [2023-11-29 01:31:18,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 7.176470588235294) internal successors, (122), 18 states have internal predecessors, (122), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 01:31:18,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 4146 transitions. [2023-11-29 01:31:18,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-11-29 01:31:18,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:31:18,217 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1] [2023-11-29 01:31:18,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-29 01:31:18,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2023-11-29 01:31:18,417 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-29 01:31:18,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:31:18,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1216064625, now seen corresponding path program 6 times [2023-11-29 01:31:18,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:31:18,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195253443] [2023-11-29 01:31:18,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:31:18,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:31:18,426 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:31:18,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [102768995] [2023-11-29 01:31:18,426 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 01:31:18,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:31:18,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:31:18,427 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:31:18,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dae6272-1a55-4ac5-a9cc-ec1aea159797/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 01:31:18,523 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2023-11-29 01:31:18,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:31:18,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-29 01:31:18,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:31:19,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 268 proven. 87 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2023-11-29 01:31:19,915 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:31:53,003 WARN L293 SmtUtils]: Spent 16.27s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:32:41,541 WARN L293 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)