/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-50.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:21:40,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:21:40,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:21:40,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 11:21:40,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:21:40,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:21:40,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:21:40,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:21:40,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:21:40,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:21:40,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:21:40,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:21:40,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:21:40,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:21:40,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:21:40,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:21:40,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:21:40,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:21:40,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:21:40,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:21:40,295 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 11:21:40,309 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:21:40,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:21:40,310 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 11:21:40,310 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 11:21:40,311 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:21:40,311 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:21:40,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:21:40,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:21:40,311 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:21:40,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:21:40,312 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:21:40,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:21:40,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:21:40,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:21:40,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:21:40,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:21:40,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:21:40,313 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:21:40,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:21:40,313 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:21:40,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:21:40,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:21:40,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:21:40,313 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:21:40,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:21:40,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:21:40,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:21:40,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:21:40,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:21:40,314 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:21:40,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:21:40,314 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:21:40,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 11:21:40,314 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:21:40,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:21:40,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:21:40,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:21:40,551 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:21:40,562 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:21:40,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-50.i [2022-09-16 11:21:40,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7086c3309/f6c4de6d312a4700b8b0fc070e777575/FLAG2ba169e76 [2022-09-16 11:21:41,076 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:21:41,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-50.i [2022-09-16 11:21:41,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7086c3309/f6c4de6d312a4700b8b0fc070e777575/FLAG2ba169e76 [2022-09-16 11:21:41,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7086c3309/f6c4de6d312a4700b8b0fc070e777575 [2022-09-16 11:21:41,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:21:41,104 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:21:41,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:21:41,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:21:41,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:21:41,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:21:41" (1/1) ... [2022-09-16 11:21:41,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742e61d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:21:41, skipping insertion in model container [2022-09-16 11:21:41,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:21:41" (1/1) ... [2022-09-16 11:21:41,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:21:41,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:21:41,407 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-50.i[30190,30203] [2022-09-16 11:21:41,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:21:41,426 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:21:41,458 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/reorder_c11_bad-50.i[30190,30203] [2022-09-16 11:21:41,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:21:41,505 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:21:41,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:21:41 WrapperNode [2022-09-16 11:21:41,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:21:41,506 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:21:41,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:21:41,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:21:41,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:21:41" (1/1) ... [2022-09-16 11:21:41,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:21:41" (1/1) ... [2022-09-16 11:21:41,558 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 79 [2022-09-16 11:21:41,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:21:41,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:21:41,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:21:41,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:21:41,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:21:41" (1/1) ... [2022-09-16 11:21:41,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:21:41" (1/1) ... [2022-09-16 11:21:41,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:21:41" (1/1) ... [2022-09-16 11:21:41,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:21:41" (1/1) ... [2022-09-16 11:21:41,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:21:41" (1/1) ... [2022-09-16 11:21:41,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:21:41" (1/1) ... [2022-09-16 11:21:41,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:21:41" (1/1) ... [2022-09-16 11:21:41,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:21:41,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:21:41,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:21:41,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:21:41,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:21:41" (1/1) ... [2022-09-16 11:21:41,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:21:41,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:21:41,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 11:21:41,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 11:21:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:21:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-09-16 11:21:41,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-09-16 11:21:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:21:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:21:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:21:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:21:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:21:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-09-16 11:21:41,658 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-09-16 11:21:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:21:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:21:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:21:41,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:21:41,659 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:21:41,802 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:21:41,803 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:21:42,024 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:21:42,029 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:21:42,029 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-16 11:21:42,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:21:42 BoogieIcfgContainer [2022-09-16 11:21:42,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:21:42,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:21:42,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:21:42,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:21:42,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:21:41" (1/3) ... [2022-09-16 11:21:42,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b500831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:21:42, skipping insertion in model container [2022-09-16 11:21:42,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:21:41" (2/3) ... [2022-09-16 11:21:42,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b500831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:21:42, skipping insertion in model container [2022-09-16 11:21:42,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:21:42" (3/3) ... [2022-09-16 11:21:42,040 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_bad-50.i [2022-09-16 11:21:42,046 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 11:21:42,053 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:21:42,053 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 11:21:42,054 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:21:42,108 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-09-16 11:21:42,136 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 106 transitions, 234 flow [2022-09-16 11:21:42,240 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2006 states, 1980 states have (on average 2.5974747474747475) internal successors, (5143), 2005 states have internal predecessors, (5143), 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) [2022-09-16 11:21:42,277 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:21:42,295 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=FINITE_AUTOMATA, 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;@34a355be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:21:42,295 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-09-16 11:21:42,301 INFO L276 IsEmpty]: Start isEmpty. Operand has 2006 states, 1980 states have (on average 2.5974747474747475) internal successors, (5143), 2005 states have internal predecessors, (5143), 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) [2022-09-16 11:21:42,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-09-16 11:21:42,321 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:21:42,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:21:42,321 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-09-16 11:21:42,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:21:42,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1743683162, now seen corresponding path program 1 times [2022-09-16 11:21:42,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:21:42,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849050418] [2022-09-16 11:21:42,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:21:42,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:21:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:21:42,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:21:42,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:21:42,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849050418] [2022-09-16 11:21:42,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849050418] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:21:42,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:21:42,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:21:42,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349344232] [2022-09-16 11:21:42,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:21:42,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:21:42,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:21:42,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:21:42,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:21:42,645 INFO L87 Difference]: Start difference. First operand has 2006 states, 1980 states have (on average 2.5974747474747475) internal successors, (5143), 2005 states have internal predecessors, (5143), 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) Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-09-16 11:21:42,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:21:42,783 INFO L93 Difference]: Finished difference Result 1031 states and 2382 transitions. [2022-09-16 11:21:42,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:21:42,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2022-09-16 11:21:42,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:21:42,807 INFO L225 Difference]: With dead ends: 1031 [2022-09-16 11:21:42,808 INFO L226 Difference]: Without dead ends: 1008 [2022-09-16 11:21:42,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:21:42,811 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 66 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:21:42,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 177 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:21:42,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2022-09-16 11:21:42,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 1008. [2022-09-16 11:21:42,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 991 states have (on average 2.371342078708375) internal successors, (2350), 1007 states have internal predecessors, (2350), 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) [2022-09-16 11:21:42,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 2350 transitions. [2022-09-16 11:21:42,884 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 2350 transitions. Word has length 31 [2022-09-16 11:21:42,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:21:42,884 INFO L495 AbstractCegarLoop]: Abstraction has 1008 states and 2350 transitions. [2022-09-16 11:21:42,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-09-16 11:21:42,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 2350 transitions. [2022-09-16 11:21:42,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-09-16 11:21:42,885 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:21:42,886 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:21:42,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:21:42,886 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-09-16 11:21:42,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:21:42,887 INFO L85 PathProgramCache]: Analyzing trace with hash 888287988, now seen corresponding path program 1 times [2022-09-16 11:21:42,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:21:42,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056669391] [2022-09-16 11:21:42,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:21:42,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:21:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-16 11:21:42,928 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-16 11:21:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-16 11:21:42,976 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-16 11:21:42,977 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-09-16 11:21:42,978 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2022-09-16 11:21:42,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-09-16 11:21:42,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-09-16 11:21:42,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-09-16 11:21:42,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-09-16 11:21:42,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-09-16 11:21:42,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-09-16 11:21:42,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-09-16 11:21:42,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-09-16 11:21:42,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 10 remaining) [2022-09-16 11:21:42,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:21:42,983 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-09-16 11:21:42,985 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-09-16 11:21:42,985 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-09-16 11:21:43,016 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-09-16 11:21:43,019 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 119 places, 124 transitions, 296 flow [2022-09-16 11:21:46,142 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 108163 states, 108066 states have (on average 4.20272796254141) internal successors, (454172), 108162 states have internal predecessors, (454172), 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) [2022-09-16 11:21:46,148 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:21:46,153 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=FINITE_AUTOMATA, 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;@34a355be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:21:46,154 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-09-16 11:21:46,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 108163 states, 108066 states have (on average 4.20272796254141) internal successors, (454172), 108162 states have internal predecessors, (454172), 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) [2022-09-16 11:21:46,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-09-16 11:21:46,363 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:21:46,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:21:46,365 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-09-16 11:21:46,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:21:46,380 INFO L85 PathProgramCache]: Analyzing trace with hash 2118885228, now seen corresponding path program 1 times [2022-09-16 11:21:46,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:21:46,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548789301] [2022-09-16 11:21:46,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:21:46,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:21:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:21:46,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:21:46,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:21:46,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548789301] [2022-09-16 11:21:46,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548789301] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:21:46,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:21:46,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:21:46,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171282990] [2022-09-16 11:21:46,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:21:46,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:21:46,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:21:46,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:21:46,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:21:46,683 INFO L87 Difference]: Start difference. First operand has 108163 states, 108066 states have (on average 4.20272796254141) internal successors, (454172), 108162 states have internal predecessors, (454172), 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) Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-09-16 11:21:48,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:21:48,254 INFO L93 Difference]: Finished difference Result 56820 states and 208272 transitions. [2022-09-16 11:21:48,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:21:48,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2022-09-16 11:21:48,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:21:48,917 INFO L225 Difference]: With dead ends: 56820 [2022-09-16 11:21:48,917 INFO L226 Difference]: Without dead ends: 54839 [2022-09-16 11:21:48,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:21:48,919 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 80 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:21:48,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 269 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:21:49,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54839 states. [2022-09-16 11:21:50,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54839 to 51678. [2022-09-16 11:21:51,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51678 states, 51539 states have (on average 3.77805157259551) internal successors, (194717), 51677 states have internal predecessors, (194717), 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) [2022-09-16 11:21:51,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51678 states to 51678 states and 194717 transitions. [2022-09-16 11:21:51,656 INFO L78 Accepts]: Start accepts. Automaton has 51678 states and 194717 transitions. Word has length 31 [2022-09-16 11:21:51,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:21:51,656 INFO L495 AbstractCegarLoop]: Abstraction has 51678 states and 194717 transitions. [2022-09-16 11:21:51,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2022-09-16 11:21:51,657 INFO L276 IsEmpty]: Start isEmpty. Operand 51678 states and 194717 transitions. [2022-09-16 11:21:51,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-09-16 11:21:51,673 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:21:51,674 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:21:51,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:21:51,674 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-09-16 11:21:51,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:21:51,675 INFO L85 PathProgramCache]: Analyzing trace with hash 752407917, now seen corresponding path program 1 times [2022-09-16 11:21:51,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:21:51,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431806755] [2022-09-16 11:21:51,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:21:51,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:21:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:21:51,756 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-16 11:21:51,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:21:51,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431806755] [2022-09-16 11:21:51,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431806755] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:21:51,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:21:51,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:21:51,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741808584] [2022-09-16 11:21:51,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:21:51,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:21:51,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:21:51,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:21:51,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:21:51,759 INFO L87 Difference]: Start difference. First operand 51678 states and 194717 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 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) [2022-09-16 11:21:52,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:21:52,325 INFO L93 Difference]: Finished difference Result 51879 states and 195234 transitions. [2022-09-16 11:21:52,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:21:52,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 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 43 [2022-09-16 11:21:52,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:21:52,947 INFO L225 Difference]: With dead ends: 51879 [2022-09-16 11:21:52,947 INFO L226 Difference]: Without dead ends: 51879 [2022-09-16 11:21:52,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:21:52,948 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 96 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:21:52,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 201 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:21:53,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51879 states. [2022-09-16 11:21:54,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51879 to 51642. [2022-09-16 11:21:54,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51642 states, 51504 states have (on average 3.7787550481516) internal successors, (194621), 51641 states have internal predecessors, (194621), 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) [2022-09-16 11:21:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51642 states to 51642 states and 194621 transitions. [2022-09-16 11:21:55,162 INFO L78 Accepts]: Start accepts. Automaton has 51642 states and 194621 transitions. Word has length 43 [2022-09-16 11:21:55,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:21:55,162 INFO L495 AbstractCegarLoop]: Abstraction has 51642 states and 194621 transitions. [2022-09-16 11:21:55,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 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) [2022-09-16 11:21:55,163 INFO L276 IsEmpty]: Start isEmpty. Operand 51642 states and 194621 transitions. [2022-09-16 11:21:55,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-09-16 11:21:55,164 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:21:55,164 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 11:21:55,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:21:55,164 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-09-16 11:21:55,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:21:55,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1849809328, now seen corresponding path program 1 times [2022-09-16 11:21:55,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:21:55,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652076584] [2022-09-16 11:21:55,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:21:55,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:21:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:21:55,254 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:21:55,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:21:55,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652076584] [2022-09-16 11:21:55,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652076584] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:21:55,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268536566] [2022-09-16 11:21:55,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:21:55,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:21:55,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:21:55,258 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:21:55,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 11:21:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:21:55,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 11:21:55,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:21:55,388 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:21:55,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-16 11:21:55,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268536566] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:21:55,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-16 11:21:55,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-09-16 11:21:55,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339684133] [2022-09-16 11:21:55,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:21:55,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:21:55,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:21:55,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:21:55,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-09-16 11:21:55,390 INFO L87 Difference]: Start difference. First operand 51642 states and 194621 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 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) [2022-09-16 11:21:56,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:21:56,247 INFO L93 Difference]: Finished difference Result 54767 states and 202993 transitions. [2022-09-16 11:21:56,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:21:56,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2022-09-16 11:21:56,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:21:56,555 INFO L225 Difference]: With dead ends: 54767 [2022-09-16 11:21:56,555 INFO L226 Difference]: Without dead ends: 54767 [2022-09-16 11:21:56,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-09-16 11:21:56,558 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 133 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 11:21:56,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 327 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 11:21:56,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54767 states. [2022-09-16 11:21:58,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54767 to 51606. [2022-09-16 11:21:58,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51606 states, 51469 states have (on average 3.7794594804639687) internal successors, (194525), 51605 states have internal predecessors, (194525), 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) [2022-09-16 11:21:58,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51606 states to 51606 states and 194525 transitions. [2022-09-16 11:21:58,849 INFO L78 Accepts]: Start accepts. Automaton has 51606 states and 194525 transitions. Word has length 44 [2022-09-16 11:21:58,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:21:58,851 INFO L495 AbstractCegarLoop]: Abstraction has 51606 states and 194525 transitions. [2022-09-16 11:21:58,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 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) [2022-09-16 11:21:58,851 INFO L276 IsEmpty]: Start isEmpty. Operand 51606 states and 194525 transitions. [2022-09-16 11:21:58,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-09-16 11:21:58,852 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:21:58,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:21:58,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-09-16 11:21:59,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:21:59,082 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-09-16 11:21:59,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:21:59,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1055487924, now seen corresponding path program 1 times [2022-09-16 11:21:59,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:21:59,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551111729] [2022-09-16 11:21:59,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:21:59,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:21:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:21:59,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:21:59,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:21:59,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551111729] [2022-09-16 11:21:59,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551111729] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 11:21:59,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760301662] [2022-09-16 11:21:59,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:21:59,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 11:21:59,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:21:59,142 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 11:21:59,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-16 11:21:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:21:59,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-16 11:21:59,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 11:21:59,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:21:59,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 11:21:59,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:21:59,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760301662] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 11:21:59,273 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 11:21:59,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-09-16 11:21:59,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754645454] [2022-09-16 11:21:59,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 11:21:59,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-16 11:21:59,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:21:59,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-16 11:21:59,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-09-16 11:21:59,275 INFO L87 Difference]: Start difference. First operand 51606 states and 194525 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 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) [2022-09-16 11:21:59,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 11:21:59,320 INFO L93 Difference]: Finished difference Result 567 states and 1371 transitions. [2022-09-16 11:21:59,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-16 11:21:59,321 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 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 45 [2022-09-16 11:21:59,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 11:21:59,322 INFO L225 Difference]: With dead ends: 567 [2022-09-16 11:21:59,322 INFO L226 Difference]: Without dead ends: 567 [2022-09-16 11:21:59,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-09-16 11:21:59,323 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 125 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-09-16 11:21:59,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 219 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-09-16 11:21:59,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-09-16 11:21:59,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2022-09-16 11:21:59,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 566 states have (on average 2.42226148409894) internal successors, (1371), 566 states have internal predecessors, (1371), 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) [2022-09-16 11:21:59,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 1371 transitions. [2022-09-16 11:21:59,330 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 1371 transitions. Word has length 45 [2022-09-16 11:21:59,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 11:21:59,330 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 1371 transitions. [2022-09-16 11:21:59,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 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) [2022-09-16 11:21:59,331 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 1371 transitions. [2022-09-16 11:21:59,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-09-16 11:21:59,332 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 11:21:59,332 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:21:59,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-16 11:21:59,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-09-16 11:21:59,546 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-09-16 11:21:59,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:21:59,547 INFO L85 PathProgramCache]: Analyzing trace with hash 303049927, now seen corresponding path program 1 times [2022-09-16 11:21:59,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:21:59,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379844623] [2022-09-16 11:21:59,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:21:59,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:21:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-16 11:21:59,560 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-16 11:21:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-16 11:21:59,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-16 11:21:59,574 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-09-16 11:21:59,574 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2022-09-16 11:21:59,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-09-16 11:21:59,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-09-16 11:21:59,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-09-16 11:21:59,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-09-16 11:21:59,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-09-16 11:21:59,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-09-16 11:21:59,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-09-16 11:21:59,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-09-16 11:21:59,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 10 remaining) [2022-09-16 11:21:59,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 11:21:59,575 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-09-16 11:21:59,575 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-09-16 11:21:59,575 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-09-16 11:21:59,602 INFO L144 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2022-09-16 11:21:59,610 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 136 places, 142 transitions, 362 flow