./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/basename-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b 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_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/basename-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash c899d9f75a53a80fe85551911016ababc48d03a22c1656000243377f27dbc4c0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:54:06,413 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:54:06,536 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-06 22:54:06,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:54:06,547 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:54:06,591 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:54:06,592 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:54:06,592 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:54:06,593 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:54:06,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:54:06,600 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:54:06,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:54:06,601 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:54:06,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:54:06,604 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:54:06,604 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:54:06,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:54:06,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:54:06,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:54:06,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:54:06,606 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:54:06,607 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:54:06,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:54:06,608 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:54:06,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:54:06,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:54:06,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:54:06,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:54:06,611 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:54:06,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:54:06,612 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:54:06,613 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:54:06,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:54:06,613 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:54:06,613 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:54:06,614 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:54:06,614 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:54:06,614 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:54:06,614 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_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c899d9f75a53a80fe85551911016ababc48d03a22c1656000243377f27dbc4c0 [2023-11-06 22:54:06,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:54:06,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:54:06,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:54:06,984 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:54:06,984 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:54:06,986 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/busybox-1.22.0/basename-2.i [2023-11-06 22:54:09,948 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:54:10,360 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:54:10,361 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/sv-benchmarks/c/busybox-1.22.0/basename-2.i [2023-11-06 22:54:10,393 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/data/59faf762c/9fbaa4dafdd447c38da3f0dcbff8c0da/FLAG893dd5a24 [2023-11-06 22:54:10,418 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/data/59faf762c/9fbaa4dafdd447c38da3f0dcbff8c0da [2023-11-06 22:54:10,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:54:10,429 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:54:10,433 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:54:10,433 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:54:10,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:54:10,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:10" (1/1) ... [2023-11-06 22:54:10,442 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ad892d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:10, skipping insertion in model container [2023-11-06 22:54:10,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:10" (1/1) ... [2023-11-06 22:54:10,526 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:54:11,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:54:11,386 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:54:11,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:54:11,579 WARN L672 CHandler]: The function strrchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:54:11,587 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:54:11,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:11 WrapperNode [2023-11-06 22:54:11,588 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:54:11,589 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:54:11,589 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:54:11,589 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:54:11,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:11" (1/1) ... [2023-11-06 22:54:11,628 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:11" (1/1) ... [2023-11-06 22:54:11,674 INFO L138 Inliner]: procedures = 347, calls = 115, calls flagged for inlining = 11, calls inlined = 10, statements flattened = 389 [2023-11-06 22:54:11,675 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:54:11,675 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:54:11,676 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:54:11,676 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:54:11,686 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:11" (1/1) ... [2023-11-06 22:54:11,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:11" (1/1) ... [2023-11-06 22:54:11,695 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:11" (1/1) ... [2023-11-06 22:54:11,696 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:11" (1/1) ... [2023-11-06 22:54:11,718 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:11" (1/1) ... [2023-11-06 22:54:11,724 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:11" (1/1) ... [2023-11-06 22:54:11,730 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:11" (1/1) ... [2023-11-06 22:54:11,734 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:11" (1/1) ... [2023-11-06 22:54:11,743 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:54:11,744 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:54:11,744 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:54:11,744 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:54:11,745 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:11" (1/1) ... [2023-11-06 22:54:11,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:54:11,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:11,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:54:11,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:54:11,886 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:54:11,886 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:54:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:54:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:54:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:54:11,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:54:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:54:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2023-11-06 22:54:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:54:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:54:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:54:11,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:54:11,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:54:12,295 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:54:12,298 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:54:12,875 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:54:12,883 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:54:12,883 INFO L302 CfgBuilder]: Removed 9 assume(true) statements. [2023-11-06 22:54:12,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:12 BoogieIcfgContainer [2023-11-06 22:54:12,886 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:54:12,889 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:54:12,889 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:54:12,893 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:54:12,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:54:10" (1/3) ... [2023-11-06 22:54:12,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103fb6df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:12, skipping insertion in model container [2023-11-06 22:54:12,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:11" (2/3) ... [2023-11-06 22:54:12,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103fb6df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:12, skipping insertion in model container [2023-11-06 22:54:12,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:12" (3/3) ... [2023-11-06 22:54:12,896 INFO L112 eAbstractionObserver]: Analyzing ICFG basename-2.i [2023-11-06 22:54:12,917 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:54:12,918 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-06 22:54:12,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:54:13,010 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=LoopsAndPotentialCycles, 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;@31decfd3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:54:13,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-06 22:54:13,017 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 92 states have (on average 1.7173913043478262) internal successors, (158), 116 states have internal predecessors, (158), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:13,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-06 22:54:13,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:13,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-06 22:54:13,026 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:13,033 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:13,034 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2023-11-06 22:54:13,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:13,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183271652] [2023-11-06 22:54:13,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:13,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:13,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:13,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:13,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183271652] [2023-11-06 22:54:13,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183271652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:13,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:13,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:54:13,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825353998] [2023-11-06 22:54:13,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:13,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:13,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:13,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:13,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:13,664 INFO L87 Difference]: Start difference. First operand has 120 states, 92 states have (on average 1.7173913043478262) internal successors, (158), 116 states have internal predecessors, (158), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-06 22:54:13,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:13,764 INFO L93 Difference]: Finished difference Result 237 states and 323 transitions. [2023-11-06 22:54:13,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:13,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-06 22:54:13,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:13,779 INFO L225 Difference]: With dead ends: 237 [2023-11-06 22:54:13,779 INFO L226 Difference]: Without dead ends: 117 [2023-11-06 22:54:13,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:13,788 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 1 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:13,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 286 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:13,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-06 22:54:13,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2023-11-06 22:54:13,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 90 states have (on average 1.5888888888888888) internal successors, (143), 113 states have internal predecessors, (143), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:13,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2023-11-06 22:54:13,841 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 147 transitions. Word has length 4 [2023-11-06 22:54:13,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:13,841 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 147 transitions. [2023-11-06 22:54:13,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-06 22:54:13,842 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 147 transitions. [2023-11-06 22:54:13,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 22:54:13,842 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:13,843 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-06 22:54:13,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:54:13,843 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:13,844 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:13,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1809705867, now seen corresponding path program 1 times [2023-11-06 22:54:13,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:13,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628905489] [2023-11-06 22:54:13,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:13,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:14,042 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:14,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:14,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628905489] [2023-11-06 22:54:14,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628905489] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:14,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365633243] [2023-11-06 22:54:14,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:14,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:14,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:14,052 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:14,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:54:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:14,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:54:14,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:14,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:14,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:14,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365633243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:14,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:54:14,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-06 22:54:14,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440280713] [2023-11-06 22:54:14,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:14,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:54:14,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:14,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:54:14,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:54:14,367 INFO L87 Difference]: Start difference. First operand 117 states and 147 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-06 22:54:14,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:14,464 INFO L93 Difference]: Finished difference Result 117 states and 147 transitions. [2023-11-06 22:54:14,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:54:14,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2023-11-06 22:54:14,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:14,471 INFO L225 Difference]: With dead ends: 117 [2023-11-06 22:54:14,471 INFO L226 Difference]: Without dead ends: 116 [2023-11-06 22:54:14,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:54:14,473 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 3 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:14,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 410 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:14,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-06 22:54:14,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2023-11-06 22:54:14,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 90 states have (on average 1.5777777777777777) internal successors, (142), 112 states have internal predecessors, (142), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:14,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 146 transitions. [2023-11-06 22:54:14,500 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 146 transitions. Word has length 7 [2023-11-06 22:54:14,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:14,501 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 146 transitions. [2023-11-06 22:54:14,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-06 22:54:14,501 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 146 transitions. [2023-11-06 22:54:14,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:54:14,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:14,502 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-06 22:54:14,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:54:14,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:14,710 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:14,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:14,710 INFO L85 PathProgramCache]: Analyzing trace with hash 266307074, now seen corresponding path program 1 times [2023-11-06 22:54:14,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:14,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680380898] [2023-11-06 22:54:14,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:14,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:14,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:54:14,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:14,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680380898] [2023-11-06 22:54:14,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680380898] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:14,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:14,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:54:14,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865938746] [2023-11-06 22:54:14,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:14,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:14,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:14,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:14,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:14,810 INFO L87 Difference]: Start difference. First operand 116 states and 146 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-06 22:54:14,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:14,828 INFO L93 Difference]: Finished difference Result 116 states and 146 transitions. [2023-11-06 22:54:14,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:14,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-06 22:54:14,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:14,830 INFO L225 Difference]: With dead ends: 116 [2023-11-06 22:54:14,830 INFO L226 Difference]: Without dead ends: 115 [2023-11-06 22:54:14,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:14,832 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:14,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 275 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:14,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-06 22:54:14,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2023-11-06 22:54:14,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 88 states have (on average 1.5795454545454546) internal successors, (139), 109 states have internal predecessors, (139), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:14,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 143 transitions. [2023-11-06 22:54:14,857 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 143 transitions. Word has length 8 [2023-11-06 22:54:14,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:14,857 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 143 transitions. [2023-11-06 22:54:14,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-06 22:54:14,858 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 143 transitions. [2023-11-06 22:54:14,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:54:14,858 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:14,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:14,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:54:14,859 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:14,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:14,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1444150354, now seen corresponding path program 1 times [2023-11-06 22:54:14,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:14,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310351695] [2023-11-06 22:54:14,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:14,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:15,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:54:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:15,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:15,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:15,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310351695] [2023-11-06 22:54:15,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310351695] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:15,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682017045] [2023-11-06 22:54:15,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:15,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:15,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:15,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:15,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:54:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:15,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:54:15,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:15,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:54:15,212 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:15,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682017045] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:15,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:54:15,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-06 22:54:15,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803322012] [2023-11-06 22:54:15,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:15,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:15,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:15,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:15,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:54:15,215 INFO L87 Difference]: Start difference. First operand 113 states and 143 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:15,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:15,246 INFO L93 Difference]: Finished difference Result 113 states and 143 transitions. [2023-11-06 22:54:15,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:15,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-11-06 22:54:15,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:15,249 INFO L225 Difference]: With dead ends: 113 [2023-11-06 22:54:15,249 INFO L226 Difference]: Without dead ends: 111 [2023-11-06 22:54:15,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:54:15,251 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 126 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:15,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 140 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:15,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-06 22:54:15,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-11-06 22:54:15,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 88 states have (on average 1.5568181818181819) internal successors, (137), 107 states have internal predecessors, (137), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:15,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 141 transitions. [2023-11-06 22:54:15,263 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 141 transitions. Word has length 13 [2023-11-06 22:54:15,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:15,264 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 141 transitions. [2023-11-06 22:54:15,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:15,265 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 141 transitions. [2023-11-06 22:54:15,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 22:54:15,265 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:15,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:15,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:15,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:15,472 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:15,473 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:15,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1818988068, now seen corresponding path program 1 times [2023-11-06 22:54:15,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:15,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985136329] [2023-11-06 22:54:15,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:15,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:15,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:54:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:15,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:15,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:15,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985136329] [2023-11-06 22:54:15,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985136329] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:15,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562279212] [2023-11-06 22:54:15,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:15,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:15,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:15,643 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:15,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:54:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:15,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:54:15,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:15,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:15,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:15,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:15,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562279212] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:15,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:54:15,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-06 22:54:15,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243635463] [2023-11-06 22:54:15,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:15,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:54:15,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:15,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:54:15,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:54:15,882 INFO L87 Difference]: Start difference. First operand 111 states and 141 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:54:15,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:15,924 INFO L93 Difference]: Finished difference Result 225 states and 287 transitions. [2023-11-06 22:54:15,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:54:15,925 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-06 22:54:15,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:15,926 INFO L225 Difference]: With dead ends: 225 [2023-11-06 22:54:15,926 INFO L226 Difference]: Without dead ends: 120 [2023-11-06 22:54:15,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:54:15,929 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 4 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:15,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 271 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:15,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-06 22:54:15,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2023-11-06 22:54:15,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 97 states have (on average 1.5051546391752577) internal successors, (146), 116 states have internal predecessors, (146), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:15,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 150 transitions. [2023-11-06 22:54:15,941 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 150 transitions. Word has length 14 [2023-11-06 22:54:15,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:15,941 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 150 transitions. [2023-11-06 22:54:15,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:54:15,941 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 150 transitions. [2023-11-06 22:54:15,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-06 22:54:15,942 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:15,942 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:15,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:16,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:16,151 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:16,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:16,151 INFO L85 PathProgramCache]: Analyzing trace with hash 2133209002, now seen corresponding path program 2 times [2023-11-06 22:54:16,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:16,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465702153] [2023-11-06 22:54:16,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:16,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:16,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:54:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:16,494 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:16,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:16,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465702153] [2023-11-06 22:54:16,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465702153] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:16,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698872777] [2023-11-06 22:54:16,498 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:54:16,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:16,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:16,500 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:16,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:54:16,665 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:54:16,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:54:16,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:54:16,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:16,731 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 22:54:16,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:16,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698872777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:16,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:54:16,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-06 22:54:16,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161233218] [2023-11-06 22:54:16,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:16,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:54:16,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:16,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:54:16,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:54:16,734 INFO L87 Difference]: Start difference. First operand 120 states and 150 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:16,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:16,813 INFO L93 Difference]: Finished difference Result 120 states and 150 transitions. [2023-11-06 22:54:16,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:54:16,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-11-06 22:54:16,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:16,815 INFO L225 Difference]: With dead ends: 120 [2023-11-06 22:54:16,816 INFO L226 Difference]: Without dead ends: 118 [2023-11-06 22:54:16,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:54:16,817 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 125 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:16,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 382 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:16,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-06 22:54:16,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2023-11-06 22:54:16,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 97 states have (on average 1.4845360824742269) internal successors, (144), 114 states have internal predecessors, (144), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:16,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 148 transitions. [2023-11-06 22:54:16,828 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 148 transitions. Word has length 23 [2023-11-06 22:54:16,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:16,829 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 148 transitions. [2023-11-06 22:54:16,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:16,829 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 148 transitions. [2023-11-06 22:54:16,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-06 22:54:16,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:16,831 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:16,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:17,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 22:54:17,038 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:17,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:17,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1638370649, now seen corresponding path program 1 times [2023-11-06 22:54:17,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:17,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459769567] [2023-11-06 22:54:17,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:17,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:17,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:54:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:17,228 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 22:54:17,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:17,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459769567] [2023-11-06 22:54:17,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459769567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:17,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:17,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:54:17,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107559683] [2023-11-06 22:54:17,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:17,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:17,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:17,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:17,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:17,231 INFO L87 Difference]: Start difference. First operand 118 states and 148 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:17,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:17,260 INFO L93 Difference]: Finished difference Result 218 states and 279 transitions. [2023-11-06 22:54:17,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:17,260 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2023-11-06 22:54:17,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:17,262 INFO L225 Difference]: With dead ends: 218 [2023-11-06 22:54:17,262 INFO L226 Difference]: Without dead ends: 121 [2023-11-06 22:54:17,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:17,264 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 1 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:17,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 264 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:17,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-06 22:54:17,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-11-06 22:54:17,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 100 states have (on average 1.47) internal successors, (147), 117 states have internal predecessors, (147), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:17,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 151 transitions. [2023-11-06 22:54:17,274 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 151 transitions. Word has length 28 [2023-11-06 22:54:17,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:17,274 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 151 transitions. [2023-11-06 22:54:17,274 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:17,275 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 151 transitions. [2023-11-06 22:54:17,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-06 22:54:17,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:17,276 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:17,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:54:17,277 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:17,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:17,277 INFO L85 PathProgramCache]: Analyzing trace with hash 691730905, now seen corresponding path program 1 times [2023-11-06 22:54:17,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:17,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688482899] [2023-11-06 22:54:17,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:17,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:17,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:54:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:17,467 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 22:54:17,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:17,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688482899] [2023-11-06 22:54:17,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688482899] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:17,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691431523] [2023-11-06 22:54:17,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:17,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:17,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:17,470 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:17,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:54:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:17,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:54:17,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:17,799 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:54:17,799 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:17,917 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:54:17,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691431523] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:17,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:54:17,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-06 22:54:17,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469327384] [2023-11-06 22:54:17,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:17,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 22:54:17,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:17,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 22:54:17,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:54:17,921 INFO L87 Difference]: Start difference. First operand 121 states and 151 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 22:54:18,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:18,061 INFO L93 Difference]: Finished difference Result 244 states and 310 transitions. [2023-11-06 22:54:18,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:54:18,061 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-11-06 22:54:18,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:18,063 INFO L225 Difference]: With dead ends: 244 [2023-11-06 22:54:18,063 INFO L226 Difference]: Without dead ends: 138 [2023-11-06 22:54:18,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:54:18,066 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 7 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:18,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 633 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:18,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-06 22:54:18,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-11-06 22:54:18,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 118 states have (on average 1.3898305084745763) internal successors, (164), 134 states have internal predecessors, (164), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:18,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 168 transitions. [2023-11-06 22:54:18,080 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 168 transitions. Word has length 31 [2023-11-06 22:54:18,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:18,081 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 168 transitions. [2023-11-06 22:54:18,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 22:54:18,081 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 168 transitions. [2023-11-06 22:54:18,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 22:54:18,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:18,087 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:18,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:18,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:18,295 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:18,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:18,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1492330434, now seen corresponding path program 1 times [2023-11-06 22:54:18,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:18,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67359746] [2023-11-06 22:54:18,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:18,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:18,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:18,613 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:54:18,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:18,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67359746] [2023-11-06 22:54:18,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67359746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:18,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:18,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:54:18,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947997491] [2023-11-06 22:54:18,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:18,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:18,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:18,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:18,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:18,618 INFO L87 Difference]: Start difference. First operand 138 states and 168 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:18,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:18,640 INFO L93 Difference]: Finished difference Result 238 states and 306 transitions. [2023-11-06 22:54:18,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:18,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2023-11-06 22:54:18,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:18,643 INFO L225 Difference]: With dead ends: 238 [2023-11-06 22:54:18,644 INFO L226 Difference]: Without dead ends: 157 [2023-11-06 22:54:18,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:18,645 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 67 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:18,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 247 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:18,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-11-06 22:54:18,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 115. [2023-11-06 22:54:18,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 103 states have (on average 1.3106796116504855) internal successors, (135), 111 states have internal predecessors, (135), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:18,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 139 transitions. [2023-11-06 22:54:18,656 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 139 transitions. Word has length 50 [2023-11-06 22:54:18,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:18,657 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 139 transitions. [2023-11-06 22:54:18,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:18,657 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 139 transitions. [2023-11-06 22:54:18,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 22:54:18,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:18,658 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:18,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:54:18,659 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:18,660 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:18,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1405378328, now seen corresponding path program 1 times [2023-11-06 22:54:18,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:18,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526159209] [2023-11-06 22:54:18,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:18,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:18,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:18,867 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:54:18,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:18,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526159209] [2023-11-06 22:54:18,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526159209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:18,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:18,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:54:18,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843886322] [2023-11-06 22:54:18,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:18,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:18,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:18,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:18,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:18,870 INFO L87 Difference]: Start difference. First operand 115 states and 139 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:18,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:18,895 INFO L93 Difference]: Finished difference Result 120 states and 144 transitions. [2023-11-06 22:54:18,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:18,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2023-11-06 22:54:18,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:18,898 INFO L225 Difference]: With dead ends: 120 [2023-11-06 22:54:18,898 INFO L226 Difference]: Without dead ends: 118 [2023-11-06 22:54:18,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:18,899 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 1 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:18,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 206 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:18,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-06 22:54:18,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2023-11-06 22:54:18,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 106 states have (on average 1.3018867924528301) internal successors, (138), 114 states have internal predecessors, (138), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:18,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 142 transitions. [2023-11-06 22:54:18,910 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 142 transitions. Word has length 50 [2023-11-06 22:54:18,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:18,910 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 142 transitions. [2023-11-06 22:54:18,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:18,911 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 142 transitions. [2023-11-06 22:54:18,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 22:54:18,912 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:18,912 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:18,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:54:18,912 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:18,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:18,913 INFO L85 PathProgramCache]: Analyzing trace with hash -249929323, now seen corresponding path program 1 times [2023-11-06 22:54:18,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:18,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784914916] [2023-11-06 22:54:18,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:18,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:19,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:19,101 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-06 22:54:19,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:19,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784914916] [2023-11-06 22:54:19,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784914916] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:19,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:19,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:54:19,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974155519] [2023-11-06 22:54:19,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:19,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:19,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:19,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:19,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:19,104 INFO L87 Difference]: Start difference. First operand 118 states and 142 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:19,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:19,148 INFO L93 Difference]: Finished difference Result 132 states and 158 transitions. [2023-11-06 22:54:19,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:19,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2023-11-06 22:54:19,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:19,150 INFO L225 Difference]: With dead ends: 132 [2023-11-06 22:54:19,150 INFO L226 Difference]: Without dead ends: 130 [2023-11-06 22:54:19,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:19,152 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 3 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:19,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 201 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:19,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-06 22:54:19,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2023-11-06 22:54:19,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 116 states have (on average 1.3017241379310345) internal successors, (151), 124 states have internal predecessors, (151), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:19,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 155 transitions. [2023-11-06 22:54:19,162 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 155 transitions. Word has length 50 [2023-11-06 22:54:19,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:19,163 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 155 transitions. [2023-11-06 22:54:19,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:19,163 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 155 transitions. [2023-11-06 22:54:19,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 22:54:19,164 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:19,164 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:19,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:54:19,165 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:19,165 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:19,166 INFO L85 PathProgramCache]: Analyzing trace with hash -249927594, now seen corresponding path program 1 times [2023-11-06 22:54:19,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:19,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684020847] [2023-11-06 22:54:19,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:19,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:19,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:19,374 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-06 22:54:19,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:19,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684020847] [2023-11-06 22:54:19,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684020847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:19,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:19,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:54:19,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761127341] [2023-11-06 22:54:19,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:19,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:19,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:19,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:19,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:19,378 INFO L87 Difference]: Start difference. First operand 128 states and 155 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:19,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:19,404 INFO L93 Difference]: Finished difference Result 128 states and 155 transitions. [2023-11-06 22:54:19,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:54:19,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2023-11-06 22:54:19,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:19,406 INFO L225 Difference]: With dead ends: 128 [2023-11-06 22:54:19,406 INFO L226 Difference]: Without dead ends: 127 [2023-11-06 22:54:19,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:19,407 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 0 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:19,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 204 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:19,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-11-06 22:54:19,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 123. [2023-11-06 22:54:19,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 112 states have (on average 1.2946428571428572) internal successors, (145), 119 states have internal predecessors, (145), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:19,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 149 transitions. [2023-11-06 22:54:19,419 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 149 transitions. Word has length 50 [2023-11-06 22:54:19,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:19,421 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 149 transitions. [2023-11-06 22:54:19,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:19,421 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 149 transitions. [2023-11-06 22:54:19,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-06 22:54:19,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:19,422 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:19,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:54:19,423 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:19,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:19,423 INFO L85 PathProgramCache]: Analyzing trace with hash 391442048, now seen corresponding path program 1 times [2023-11-06 22:54:19,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:19,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503152058] [2023-11-06 22:54:19,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:19,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:19,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:19,875 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:54:19,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:19,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503152058] [2023-11-06 22:54:19,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503152058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:19,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:19,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:54:19,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143465825] [2023-11-06 22:54:19,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:19,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:54:19,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:19,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:54:19,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:54:19,878 INFO L87 Difference]: Start difference. First operand 123 states and 149 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:20,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:20,014 INFO L93 Difference]: Finished difference Result 189 states and 235 transitions. [2023-11-06 22:54:20,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:54:20,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2023-11-06 22:54:20,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:20,016 INFO L225 Difference]: With dead ends: 189 [2023-11-06 22:54:20,016 INFO L226 Difference]: Without dead ends: 123 [2023-11-06 22:54:20,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:54:20,017 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 99 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:20,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 369 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:20,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-06 22:54:20,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-11-06 22:54:20,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 112 states have (on average 1.2857142857142858) internal successors, (144), 119 states have internal predecessors, (144), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:20,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 148 transitions. [2023-11-06 22:54:20,028 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 148 transitions. Word has length 52 [2023-11-06 22:54:20,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:20,029 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 148 transitions. [2023-11-06 22:54:20,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:20,029 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 148 transitions. [2023-11-06 22:54:20,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-06 22:54:20,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:20,030 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:20,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:54:20,031 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:20,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:20,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1281974718, now seen corresponding path program 1 times [2023-11-06 22:54:20,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:20,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954677196] [2023-11-06 22:54:20,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:20,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:20,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:20,291 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-06 22:54:20,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:20,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954677196] [2023-11-06 22:54:20,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954677196] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:20,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318720855] [2023-11-06 22:54:20,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:20,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:20,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:20,297 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:20,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:54:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:20,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:54:20,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:20,645 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-06 22:54:20,646 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:20,674 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-06 22:54:20,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318720855] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:20,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:54:20,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-06 22:54:20,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116948368] [2023-11-06 22:54:20,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:20,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:54:20,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:20,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:54:20,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:54:20,677 INFO L87 Difference]: Start difference. First operand 123 states and 148 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:20,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:20,732 INFO L93 Difference]: Finished difference Result 220 states and 273 transitions. [2023-11-06 22:54:20,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:54:20,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2023-11-06 22:54:20,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:20,734 INFO L225 Difference]: With dead ends: 220 [2023-11-06 22:54:20,734 INFO L226 Difference]: Without dead ends: 141 [2023-11-06 22:54:20,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:54:20,735 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 4 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:20,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 504 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:20,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-06 22:54:20,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2023-11-06 22:54:20,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 130 states have (on average 1.2461538461538462) internal successors, (162), 137 states have internal predecessors, (162), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:20,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 166 transitions. [2023-11-06 22:54:20,747 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 166 transitions. Word has length 58 [2023-11-06 22:54:20,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:20,748 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 166 transitions. [2023-11-06 22:54:20,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:20,748 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 166 transitions. [2023-11-06 22:54:20,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:54:20,749 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:20,749 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:20,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:20,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-06 22:54:20,961 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:20,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:20,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1945866089, now seen corresponding path program 1 times [2023-11-06 22:54:20,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:20,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029738074] [2023-11-06 22:54:20,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:20,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:21,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:21,328 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:54:21,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:21,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029738074] [2023-11-06 22:54:21,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029738074] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:21,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340684770] [2023-11-06 22:54:21,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:21,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:21,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:21,330 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:21,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:54:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:21,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:54:21,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:21,734 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:54:21,735 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:21,817 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:54:21,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340684770] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:21,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:54:21,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-11-06 22:54:21,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201618922] [2023-11-06 22:54:21,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:21,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 22:54:21,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:21,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 22:54:21,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:54:21,820 INFO L87 Difference]: Start difference. First operand 141 states and 166 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:21,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:21,913 INFO L93 Difference]: Finished difference Result 265 states and 324 transitions. [2023-11-06 22:54:21,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:54:21,913 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2023-11-06 22:54:21,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:21,915 INFO L225 Difference]: With dead ends: 265 [2023-11-06 22:54:21,915 INFO L226 Difference]: Without dead ends: 177 [2023-11-06 22:54:21,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:54:21,916 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 4 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:21,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 504 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:21,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-06 22:54:21,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2023-11-06 22:54:21,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 166 states have (on average 1.1927710843373494) internal successors, (198), 173 states have internal predecessors, (198), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:21,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 202 transitions. [2023-11-06 22:54:21,931 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 202 transitions. Word has length 69 [2023-11-06 22:54:21,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:21,931 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 202 transitions. [2023-11-06 22:54:21,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:21,932 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 202 transitions. [2023-11-06 22:54:21,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-06 22:54:21,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:21,933 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:21,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:22,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-06 22:54:22,144 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:22,144 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:22,153 INFO L85 PathProgramCache]: Analyzing trace with hash -253776023, now seen corresponding path program 2 times [2023-11-06 22:54:22,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:22,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198101126] [2023-11-06 22:54:22,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:22,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:22,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:22,591 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-06 22:54:22,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:22,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198101126] [2023-11-06 22:54:22,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198101126] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:22,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528275879] [2023-11-06 22:54:22,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:54:22,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:22,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:22,594 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:22,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:54:22,950 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:54:22,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:54:22,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:54:22,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:23,183 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:54:23,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:23,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528275879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:23,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:54:23,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-11-06 22:54:23,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201927523] [2023-11-06 22:54:23,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:23,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:54:23,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:23,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:54:23,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:54:23,187 INFO L87 Difference]: Start difference. First operand 177 states and 202 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:23,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:23,311 INFO L93 Difference]: Finished difference Result 220 states and 264 transitions. [2023-11-06 22:54:23,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:54:23,312 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2023-11-06 22:54:23,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:23,313 INFO L225 Difference]: With dead ends: 220 [2023-11-06 22:54:23,314 INFO L226 Difference]: Without dead ends: 219 [2023-11-06 22:54:23,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:54:23,315 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 204 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:23,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 352 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:23,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-06 22:54:23,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 176. [2023-11-06 22:54:23,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 166 states have (on average 1.1867469879518073) internal successors, (197), 172 states have internal predecessors, (197), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:23,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 201 transitions. [2023-11-06 22:54:23,331 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 201 transitions. Word has length 87 [2023-11-06 22:54:23,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:23,331 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 201 transitions. [2023-11-06 22:54:23,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:23,332 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 201 transitions. [2023-11-06 22:54:23,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-06 22:54:23,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:23,333 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:23,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-06 22:54:23,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-06 22:54:23,540 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:23,540 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:23,541 INFO L85 PathProgramCache]: Analyzing trace with hash 722878059, now seen corresponding path program 1 times [2023-11-06 22:54:23,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:23,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111719454] [2023-11-06 22:54:23,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:23,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:24,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:24,015 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-06 22:54:24,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:24,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111719454] [2023-11-06 22:54:24,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111719454] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:24,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644401035] [2023-11-06 22:54:24,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:24,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:24,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:24,017 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:24,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:54:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:24,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:54:24,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:54:24,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:24,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644401035] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:24,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:54:24,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-11-06 22:54:24,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071147741] [2023-11-06 22:54:24,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:24,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:54:24,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:24,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:54:24,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:54:24,567 INFO L87 Difference]: Start difference. First operand 176 states and 201 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:24,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:24,632 INFO L93 Difference]: Finished difference Result 176 states and 201 transitions. [2023-11-06 22:54:24,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:54:24,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2023-11-06 22:54:24,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:24,634 INFO L225 Difference]: With dead ends: 176 [2023-11-06 22:54:24,634 INFO L226 Difference]: Without dead ends: 175 [2023-11-06 22:54:24,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:54:24,635 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 139 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:24,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 134 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:24,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-11-06 22:54:24,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2023-11-06 22:54:24,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 166 states have (on average 1.180722891566265) internal successors, (196), 171 states have internal predecessors, (196), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:24,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 200 transitions. [2023-11-06 22:54:24,652 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 200 transitions. Word has length 88 [2023-11-06 22:54:24,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:24,652 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 200 transitions. [2023-11-06 22:54:24,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:24,653 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 200 transitions. [2023-11-06 22:54:24,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-06 22:54:24,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:24,654 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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] [2023-11-06 22:54:24,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:24,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-06 22:54:24,861 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:24,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:24,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1188855632, now seen corresponding path program 1 times [2023-11-06 22:54:24,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:24,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908117368] [2023-11-06 22:54:24,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:24,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:25,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:25,120 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:54:25,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:25,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908117368] [2023-11-06 22:54:25,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908117368] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:25,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286314205] [2023-11-06 22:54:25,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:25,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:25,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:25,123 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:25,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:54:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:25,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:54:25,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:25,621 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:54:25,622 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:25,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286314205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:25,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:54:25,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-06 22:54:25,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435301275] [2023-11-06 22:54:25,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:25,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:54:25,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:25,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:54:25,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:54:25,624 INFO L87 Difference]: Start difference. First operand 175 states and 200 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:25,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:25,654 INFO L93 Difference]: Finished difference Result 175 states and 200 transitions. [2023-11-06 22:54:25,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:54:25,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2023-11-06 22:54:25,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:25,656 INFO L225 Difference]: With dead ends: 175 [2023-11-06 22:54:25,656 INFO L226 Difference]: Without dead ends: 174 [2023-11-06 22:54:25,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:54:25,657 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 2 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:25,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 296 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:25,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-11-06 22:54:25,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2023-11-06 22:54:25,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 166 states have (on average 1.1746987951807228) internal successors, (195), 170 states have internal predecessors, (195), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:25,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 199 transitions. [2023-11-06 22:54:25,678 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 199 transitions. Word has length 88 [2023-11-06 22:54:25,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:25,678 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 199 transitions. [2023-11-06 22:54:25,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:25,679 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 199 transitions. [2023-11-06 22:54:25,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-06 22:54:25,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:25,680 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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] [2023-11-06 22:54:25,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:25,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-06 22:54:25,888 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:25,888 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:25,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1800180722, now seen corresponding path program 1 times [2023-11-06 22:54:25,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:25,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63046166] [2023-11-06 22:54:25,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:25,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:26,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:26,180 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:54:26,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:26,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63046166] [2023-11-06 22:54:26,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63046166] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:26,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806874481] [2023-11-06 22:54:26,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:26,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:26,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:26,182 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:26,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 22:54:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:26,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:54:26,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:26,687 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:54:26,687 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:26,716 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:54:26,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806874481] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:26,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:54:26,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-06 22:54:26,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072596827] [2023-11-06 22:54:26,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:26,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:54:26,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:26,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:54:26,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:54:26,720 INFO L87 Difference]: Start difference. First operand 174 states and 199 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:26,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:26,773 INFO L93 Difference]: Finished difference Result 184 states and 211 transitions. [2023-11-06 22:54:26,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:54:26,774 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2023-11-06 22:54:26,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:26,775 INFO L225 Difference]: With dead ends: 184 [2023-11-06 22:54:26,775 INFO L226 Difference]: Without dead ends: 183 [2023-11-06 22:54:26,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:54:26,776 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 0 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:26,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 297 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:26,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-06 22:54:26,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2023-11-06 22:54:26,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 175 states have (on average 1.1657142857142857) internal successors, (204), 179 states have internal predecessors, (204), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:26,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 208 transitions. [2023-11-06 22:54:26,793 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 208 transitions. Word has length 89 [2023-11-06 22:54:26,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:26,794 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 208 transitions. [2023-11-06 22:54:26,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:26,794 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 208 transitions. [2023-11-06 22:54:26,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-06 22:54:26,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:26,797 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:26,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:27,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:27,005 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:27,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:27,006 INFO L85 PathProgramCache]: Analyzing trace with hash 369497133, now seen corresponding path program 2 times [2023-11-06 22:54:27,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:27,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967878090] [2023-11-06 22:54:27,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:27,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:27,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:27,405 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-11-06 22:54:27,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:27,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967878090] [2023-11-06 22:54:27,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967878090] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:27,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715614816] [2023-11-06 22:54:27,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:54:27,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:27,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:27,408 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:27,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-06 22:54:27,844 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:54:27,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:54:27,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:54:27,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:27,951 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-11-06 22:54:27,951 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:28,070 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-11-06 22:54:28,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715614816] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:28,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:54:28,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-06 22:54:28,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358979456] [2023-11-06 22:54:28,071 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:28,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:54:28,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:28,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:54:28,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:54:28,073 INFO L87 Difference]: Start difference. First operand 183 states and 208 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:28,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:28,150 INFO L93 Difference]: Finished difference Result 183 states and 208 transitions. [2023-11-06 22:54:28,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:54:28,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2023-11-06 22:54:28,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:28,152 INFO L225 Difference]: With dead ends: 183 [2023-11-06 22:54:28,152 INFO L226 Difference]: Without dead ends: 163 [2023-11-06 22:54:28,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:54:28,154 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 70 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 295 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 [2023-11-06 22:54:28,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 295 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:28,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-11-06 22:54:28,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2023-11-06 22:54:28,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 156 states have (on average 1.1538461538461537) internal successors, (180), 159 states have internal predecessors, (180), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:28,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 184 transitions. [2023-11-06 22:54:28,173 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 184 transitions. Word has length 98 [2023-11-06 22:54:28,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:28,174 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 184 transitions. [2023-11-06 22:54:28,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:28,174 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 184 transitions. [2023-11-06 22:54:28,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-06 22:54:28,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:28,179 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:28,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:28,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:28,386 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:28,387 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:28,387 INFO L85 PathProgramCache]: Analyzing trace with hash -2056240223, now seen corresponding path program 1 times [2023-11-06 22:54:28,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:28,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632421050] [2023-11-06 22:54:28,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:28,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:28,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:28,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-06 22:54:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:28,783 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-06 22:54:28,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:28,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632421050] [2023-11-06 22:54:28,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632421050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:28,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:28,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:54:28,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679122266] [2023-11-06 22:54:28,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:28,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:54:28,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:28,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:54:28,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:54:28,786 INFO L87 Difference]: Start difference. First operand 163 states and 184 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:28,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:28,829 INFO L93 Difference]: Finished difference Result 177 states and 201 transitions. [2023-11-06 22:54:28,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:54:28,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 108 [2023-11-06 22:54:28,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:28,832 INFO L225 Difference]: With dead ends: 177 [2023-11-06 22:54:28,832 INFO L226 Difference]: Without dead ends: 176 [2023-11-06 22:54:28,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:54:28,833 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 4 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:28,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 259 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:28,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-11-06 22:54:28,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 174. [2023-11-06 22:54:28,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 166 states have (on average 1.1566265060240963) internal successors, (192), 169 states have internal predecessors, (192), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 22:54:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 198 transitions. [2023-11-06 22:54:28,856 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 198 transitions. Word has length 108 [2023-11-06 22:54:28,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:28,857 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 198 transitions. [2023-11-06 22:54:28,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:28,857 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 198 transitions. [2023-11-06 22:54:28,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-06 22:54:28,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:28,859 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:28,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-06 22:54:28,860 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:28,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:28,860 INFO L85 PathProgramCache]: Analyzing trace with hash 681062854, now seen corresponding path program 1 times [2023-11-06 22:54:28,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:28,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954099532] [2023-11-06 22:54:28,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:28,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:29,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:29,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-06 22:54:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:29,183 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-06 22:54:29,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:29,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954099532] [2023-11-06 22:54:29,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954099532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:29,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:29,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:54:29,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806095268] [2023-11-06 22:54:29,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:29,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:54:29,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:29,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:54:29,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:54:29,186 INFO L87 Difference]: Start difference. First operand 174 states and 198 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2023-11-06 22:54:29,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:29,240 INFO L93 Difference]: Finished difference Result 210 states and 240 transitions. [2023-11-06 22:54:29,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:54:29,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 109 [2023-11-06 22:54:29,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:29,242 INFO L225 Difference]: With dead ends: 210 [2023-11-06 22:54:29,242 INFO L226 Difference]: Without dead ends: 184 [2023-11-06 22:54:29,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:54:29,243 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 5 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:29,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 364 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:29,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-06 22:54:29,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 176. [2023-11-06 22:54:29,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 168 states have (on average 1.1547619047619047) internal successors, (194), 171 states have internal predecessors, (194), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 22:54:29,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 200 transitions. [2023-11-06 22:54:29,261 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 200 transitions. Word has length 109 [2023-11-06 22:54:29,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:29,261 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 200 transitions. [2023-11-06 22:54:29,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2023-11-06 22:54:29,262 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 200 transitions. [2023-11-06 22:54:29,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-06 22:54:29,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:29,263 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:29,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-06 22:54:29,264 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:29,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:29,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1838897080, now seen corresponding path program 1 times [2023-11-06 22:54:29,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:29,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687736533] [2023-11-06 22:54:29,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:29,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:29,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:29,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-06 22:54:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:29,741 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-06 22:54:29,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:29,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687736533] [2023-11-06 22:54:29,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687736533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:29,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:29,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:54:29,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465068168] [2023-11-06 22:54:29,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:29,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:54:29,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:29,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:54:29,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:54:29,744 INFO L87 Difference]: Start difference. First operand 176 states and 200 transitions. Second operand has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:29,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:29,928 INFO L93 Difference]: Finished difference Result 182 states and 207 transitions. [2023-11-06 22:54:29,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:54:29,929 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 109 [2023-11-06 22:54:29,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:29,930 INFO L225 Difference]: With dead ends: 182 [2023-11-06 22:54:29,930 INFO L226 Difference]: Without dead ends: 181 [2023-11-06 22:54:29,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:54:29,931 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 18 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:29,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 578 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:29,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-06 22:54:29,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 177. [2023-11-06 22:54:29,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 169 states have (on average 1.1538461538461537) internal successors, (195), 172 states have internal predecessors, (195), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 22:54:29,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 201 transitions. [2023-11-06 22:54:29,951 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 201 transitions. Word has length 109 [2023-11-06 22:54:29,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:29,951 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 201 transitions. [2023-11-06 22:54:29,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:29,952 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 201 transitions. [2023-11-06 22:54:29,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-06 22:54:29,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:29,953 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:29,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-06 22:54:29,954 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:29,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:29,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1419497524, now seen corresponding path program 2 times [2023-11-06 22:54:29,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:29,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064897720] [2023-11-06 22:54:29,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:29,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:30,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:30,416 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-06 22:54:30,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:30,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064897720] [2023-11-06 22:54:30,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064897720] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:30,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291938473] [2023-11-06 22:54:30,418 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:54:30,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:30,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:30,419 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:30,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-06 22:54:31,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:54:31,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:54:31,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:54:31,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:31,345 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-06 22:54:31,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:31,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291938473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:31,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:54:31,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-06 22:54:31,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713376016] [2023-11-06 22:54:31,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:31,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:54:31,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:31,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:54:31,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:54:31,348 INFO L87 Difference]: Start difference. First operand 177 states and 201 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:31,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:31,408 INFO L93 Difference]: Finished difference Result 177 states and 201 transitions. [2023-11-06 22:54:31,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:54:31,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2023-11-06 22:54:31,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:31,411 INFO L225 Difference]: With dead ends: 177 [2023-11-06 22:54:31,411 INFO L226 Difference]: Without dead ends: 176 [2023-11-06 22:54:31,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:54:31,412 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 5 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:31,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 171 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:31,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-11-06 22:54:31,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2023-11-06 22:54:31,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 169 states have (on average 1.1479289940828403) internal successors, (194), 171 states have internal predecessors, (194), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 22:54:31,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 200 transitions. [2023-11-06 22:54:31,433 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 200 transitions. Word has length 112 [2023-11-06 22:54:31,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:31,434 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 200 transitions. [2023-11-06 22:54:31,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:31,434 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 200 transitions. [2023-11-06 22:54:31,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-06 22:54:31,436 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:31,436 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:31,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:31,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:31,647 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:31,649 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:31,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1054750196, now seen corresponding path program 1 times [2023-11-06 22:54:31,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:31,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457071260] [2023-11-06 22:54:31,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:31,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:32,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:32,063 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-06 22:54:32,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:32,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457071260] [2023-11-06 22:54:32,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457071260] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:32,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157245868] [2023-11-06 22:54:32,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:32,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:32,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:32,069 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:32,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-06 22:54:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:32,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:54:32,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:32,860 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-06 22:54:32,861 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:32,991 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-06 22:54:32,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157245868] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:32,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:54:32,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-06 22:54:32,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173348340] [2023-11-06 22:54:32,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:32,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:54:32,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:32,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:54:32,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:54:32,996 INFO L87 Difference]: Start difference. First operand 176 states and 200 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:33,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:33,094 INFO L93 Difference]: Finished difference Result 285 states and 317 transitions. [2023-11-06 22:54:33,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:54:33,095 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2023-11-06 22:54:33,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:33,097 INFO L225 Difference]: With dead ends: 285 [2023-11-06 22:54:33,097 INFO L226 Difference]: Without dead ends: 284 [2023-11-06 22:54:33,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:54:33,098 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 5 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:33,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 262 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:54:33,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-06 22:54:33,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 281. [2023-11-06 22:54:33,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 274 states have (on average 1.1131386861313868) internal successors, (305), 276 states have internal predecessors, (305), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 22:54:33,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 311 transitions. [2023-11-06 22:54:33,134 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 311 transitions. Word has length 113 [2023-11-06 22:54:33,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:33,135 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 311 transitions. [2023-11-06 22:54:33,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:54:33,135 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 311 transitions. [2023-11-06 22:54:33,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-06 22:54:33,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:33,137 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:33,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:33,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-06 22:54:33,346 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:33,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:33,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1549400478, now seen corresponding path program 1 times [2023-11-06 22:54:33,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:33,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506666429] [2023-11-06 22:54:33,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:33,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:33,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:33,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-06 22:54:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:33,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-06 22:54:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:33,916 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2023-11-06 22:54:33,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:33,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506666429] [2023-11-06 22:54:33,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506666429] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:33,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832599980] [2023-11-06 22:54:33,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:33,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:33,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:33,921 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:33,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-06 22:54:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:34,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:54:34,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:34,696 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-06 22:54:34,697 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:34,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832599980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:34,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:54:34,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-11-06 22:54:34,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246796800] [2023-11-06 22:54:34,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:34,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:54:34,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:34,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:54:34,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:54:34,700 INFO L87 Difference]: Start difference. First operand 281 states and 311 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:34,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:34,738 INFO L93 Difference]: Finished difference Result 281 states and 311 transitions. [2023-11-06 22:54:34,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:54:34,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 125 [2023-11-06 22:54:34,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:34,741 INFO L225 Difference]: With dead ends: 281 [2023-11-06 22:54:34,741 INFO L226 Difference]: Without dead ends: 280 [2023-11-06 22:54:34,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:54:34,742 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 14 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:34,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 181 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:34,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-11-06 22:54:34,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2023-11-06 22:54:34,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 274 states have (on average 1.1094890510948905) internal successors, (304), 275 states have internal predecessors, (304), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 22:54:34,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 310 transitions. [2023-11-06 22:54:34,771 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 310 transitions. Word has length 125 [2023-11-06 22:54:34,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:34,772 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 310 transitions. [2023-11-06 22:54:34,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:54:34,772 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 310 transitions. [2023-11-06 22:54:34,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-06 22:54:34,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:34,774 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:34,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:34,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-06 22:54:34,983 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:34,984 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:34,984 INFO L85 PathProgramCache]: Analyzing trace with hash 786774889, now seen corresponding path program 1 times [2023-11-06 22:54:34,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:34,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349047304] [2023-11-06 22:54:34,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:34,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:35,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:35,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-06 22:54:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:35,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-06 22:54:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:35,765 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-06 22:54:35,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:35,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349047304] [2023-11-06 22:54:35,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349047304] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:35,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761111494] [2023-11-06 22:54:35,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:35,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:35,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:35,769 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:35,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-06 22:54:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:36,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:54:36,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:36,662 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-06 22:54:36,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:37,004 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-06 22:54:37,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761111494] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:54:37,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:54:37,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2023-11-06 22:54:37,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106328116] [2023-11-06 22:54:37,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:54:37,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:54:37,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:37,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:54:37,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:54:37,008 INFO L87 Difference]: Start difference. First operand 280 states and 310 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 22:54:37,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:37,233 INFO L93 Difference]: Finished difference Result 347 states and 396 transitions. [2023-11-06 22:54:37,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:54:37,234 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 126 [2023-11-06 22:54:37,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:37,236 INFO L225 Difference]: With dead ends: 347 [2023-11-06 22:54:37,236 INFO L226 Difference]: Without dead ends: 280 [2023-11-06 22:54:37,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 252 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:54:37,237 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 50 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:37,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 553 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:54:37,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-11-06 22:54:37,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2023-11-06 22:54:37,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 274 states have (on average 1.1058394160583942) internal successors, (303), 275 states have internal predecessors, (303), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 22:54:37,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 309 transitions. [2023-11-06 22:54:37,271 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 309 transitions. Word has length 126 [2023-11-06 22:54:37,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:37,271 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 309 transitions. [2023-11-06 22:54:37,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 22:54:37,271 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 309 transitions. [2023-11-06 22:54:37,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-06 22:54:37,273 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:37,274 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:37,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:37,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-06 22:54:37,483 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-06 22:54:37,483 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:37,483 INFO L85 PathProgramCache]: Analyzing trace with hash 2105861394, now seen corresponding path program 2 times [2023-11-06 22:54:37,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:37,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575188859] [2023-11-06 22:54:37,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:37,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:43,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:54:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:43,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-06 22:54:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:43,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-06 22:54:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:43,572 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2023-11-06 22:54:43,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:43,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575188859] [2023-11-06 22:54:43,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575188859] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:54:43,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017615915] [2023-11-06 22:54:43,573 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:54:43,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:54:43,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:43,591 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:54:43,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd2abaf-d116-4a86-be92-1c6166805ee1/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-06 22:54:44,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:54:44,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:54:44,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 1168 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-06 22:54:44,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:44,446 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:54:44,495 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-06 22:54:44,495 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-06 22:54:44,531 INFO L322 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-11-06 22:54:44,532 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2023-11-06 22:54:44,943 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 50 [2023-11-06 22:54:44,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:54:44,964 INFO L322 Elim1Store]: treesize reduction 33, result has 13.2 percent of original size [2023-11-06 22:54:44,964 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 39 [2023-11-06 22:54:44,979 INFO L322 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-11-06 22:54:44,979 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-11-06 22:54:44,989 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 40 [2023-11-06 22:54:44,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:54:45,003 INFO L322 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2023-11-06 22:54:45,003 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 1 [2023-11-06 22:54:45,022 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-06 22:54:45,022 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-11-06 22:54:45,066 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-06 22:54:45,067 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-11-06 22:54:45,114 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-06 22:54:45,115 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-11-06 22:54:45,160 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-06 22:54:45,161 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-11-06 22:54:45,206 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-06 22:54:45,206 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-11-06 22:54:45,250 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-06 22:54:45,251 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-11-06 22:54:45,295 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-06 22:54:45,296 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-11-06 22:54:45,336 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-06 22:54:45,336 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-11-06 22:54:45,384 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-06 22:54:45,385 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-11-06 22:54:45,428 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-06 22:54:45,428 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-11-06 22:54:45,511 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-06 22:54:45,527 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 8 proven. 355 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2023-11-06 22:54:45,528 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:54:45,600 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5856 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~4#1|) |c_ULTIMATE.start_main_~argv~0#1.offset|)) v_ArrVal_5856) |c_ULTIMATE.start_main_~argv~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~argv~0#1.offset|)) 0))) is different from false [2023-11-06 22:54:46,112 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5851 (Array Int Int)) (v_ArrVal_5853 (Array Int Int)) (v_ArrVal_5852 (Array Int Int)) (v_ArrVal_5855 (Array Int Int)) (v_ArrVal_5854 (Array Int Int)) (v_ArrVal_5856 (Array Int Int))) (not (= 0 (select (select (let ((.cse1 (+ (* 8 |c_ULTIMATE.start_main_~i~4#1|) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (let ((.cse5 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5851))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5852)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5853)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5854)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5855)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5856))) |c_ULTIMATE.start_main_~argv~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~argv~0#1.offset|))))) is different from false [2023-11-06 22:54:46,223 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5851 (Array Int Int)) (v_ArrVal_5850 (Array Int Int)) (v_ArrVal_5853 (Array Int Int)) (v_ArrVal_5852 (Array Int Int)) (v_ArrVal_5855 (Array Int Int)) (v_ArrVal_5854 (Array Int Int)) (v_ArrVal_5856 (Array Int Int))) (not (= (select (select (let ((.cse1 (+ (* 8 |c_ULTIMATE.start_main_~i~4#1|) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5850))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5851)))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5852)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5853)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5854)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5855)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5856))) |c_ULTIMATE.start_main_~argv~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~argv~0#1.offset|)) 0))) is different from false [2023-11-06 22:54:46,475 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5851 (Array Int Int)) (v_ArrVal_5850 (Array Int Int)) (v_ArrVal_5853 (Array Int Int)) (v_ArrVal_5852 (Array Int Int)) (v_ArrVal_5855 (Array Int Int)) (v_ArrVal_5854 (Array Int Int)) (v_ArrVal_5856 (Array Int Int)) (v_ArrVal_5849 (Array Int Int))) (not (= (select (select (let ((.cse1 (+ (* 8 |c_ULTIMATE.start_main_~i~4#1|) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 (let ((.cse7 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5849))) (store .cse7 (select (select .cse7 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5850)))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5851)))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5852)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5853)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5854)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5855)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5856))) |c_ULTIMATE.start_main_~argv~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~argv~0#1.offset|)) 0))) is different from false [2023-11-06 22:54:47,346 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5851 (Array Int Int)) (v_ArrVal_5850 (Array Int Int)) (v_ArrVal_5853 (Array Int Int)) (v_ArrVal_5852 (Array Int Int)) (v_ArrVal_5855 (Array Int Int)) (v_ArrVal_5854 (Array Int Int)) (v_ArrVal_5856 (Array Int Int)) (v_ArrVal_5848 (Array Int Int)) (v_ArrVal_5849 (Array Int Int))) (not (= (select (select (let ((.cse1 (+ (* 8 |c_ULTIMATE.start_main_~i~4#1|) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 (let ((.cse7 (let ((.cse8 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5848))) (store .cse8 (select (select .cse8 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5849)))) (store .cse7 (select (select .cse7 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5850)))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5851)))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5852)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5853)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5854)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5855)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5856))) |c_ULTIMATE.start_main_~argv~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~argv~0#1.offset|)) 0))) is different from false [2023-11-06 22:54:50,609 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5851 (Array Int Int)) (v_ArrVal_5850 (Array Int Int)) (v_ArrVal_5853 (Array Int Int)) (v_ArrVal_5852 (Array Int Int)) (v_ArrVal_5855 (Array Int Int)) (v_ArrVal_5854 (Array Int Int)) (v_ArrVal_5856 (Array Int Int)) (v_ArrVal_5848 (Array Int Int)) (v_ArrVal_5847 (Array Int Int)) (v_ArrVal_5849 (Array Int Int))) (not (= (select (select (let ((.cse1 (+ (* 8 |c_ULTIMATE.start_main_~i~4#1|) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 (let ((.cse7 (let ((.cse8 (let ((.cse9 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5847))) (store .cse9 (select (select .cse9 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5848)))) (store .cse8 (select (select .cse8 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5849)))) (store .cse7 (select (select .cse7 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5850)))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5851)))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5852)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5853)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5854)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5855)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_5856))) |c_ULTIMATE.start_main_~argv~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~argv~0#1.offset|)) 0))) is different from false [2023-11-06 22:54:50,631 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:54:50,632 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53247 treesize of output 28684