/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-PN-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-wmm/mix051_pso.opt_rmo.opt_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:33:41,187 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2022-09-16 11:33:41,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:33:41,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:33:41,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:33:41,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:33:41,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:33:41,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:33:41,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:33:41,263 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:33:41,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:33:41,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:33:41,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:33:41,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:33:41,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:33:41,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:33:41,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:33:41,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:33:41,285 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-PN-NoLbe.epf [2022-09-16 11:33:41,314 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:33:41,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:33:41,315 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:33:41,316 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:33:41,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:33:41,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:33:41,316 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:33:41,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:33:41,317 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:33:41,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:33:41,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:33:41,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:33:41,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:33:41,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:33:41,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:33:41,318 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:33:41,318 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:33:41,318 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:33:41,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:33:41,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:33:41,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:33:41,319 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:33:41,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:33:41,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:33:41,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:33:41,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:33:41,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:33:41,320 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:33:41,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:33:41,320 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:33:41,320 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:33:41,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:33:41,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:33:41,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:33:41,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:33:41,558 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:33:41,558 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:33:41,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i [2022-09-16 11:33:41,634 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d483479b5/bbd2d61da9c24c8ba9fdf35cf7173081/FLAG026f52442 [2022-09-16 11:33:42,117 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:33:42,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i [2022-09-16 11:33:42,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d483479b5/bbd2d61da9c24c8ba9fdf35cf7173081/FLAG026f52442 [2022-09-16 11:33:42,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d483479b5/bbd2d61da9c24c8ba9fdf35cf7173081 [2022-09-16 11:33:42,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:33:42,437 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:33:42,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:33:42,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:33:42,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:33:42,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:33:42" (1/1) ... [2022-09-16 11:33:42,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78cea8a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:42, skipping insertion in model container [2022-09-16 11:33:42,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:33:42" (1/1) ... [2022-09-16 11:33:42,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:33:42,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:33:42,658 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-wmm/mix051_pso.opt_rmo.opt_tso.opt.i[964,977] [2022-09-16 11:33:42,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:33:42,835 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:33:42,845 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-wmm/mix051_pso.opt_rmo.opt_tso.opt.i[964,977] [2022-09-16 11:33:42,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:33:42,934 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:33:42,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:42 WrapperNode [2022-09-16 11:33:42,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:33:42,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:33:42,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:33:42,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:33:42,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:42" (1/1) ... [2022-09-16 11:33:42,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:42" (1/1) ... [2022-09-16 11:33:42,988 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 194 [2022-09-16 11:33:42,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:33:42,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:33:42,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:33:42,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:33:42,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:42" (1/1) ... [2022-09-16 11:33:42,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:42" (1/1) ... [2022-09-16 11:33:43,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:42" (1/1) ... [2022-09-16 11:33:43,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:42" (1/1) ... [2022-09-16 11:33:43,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:42" (1/1) ... [2022-09-16 11:33:43,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:42" (1/1) ... [2022-09-16 11:33:43,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:42" (1/1) ... [2022-09-16 11:33:43,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:33:43,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:33:43,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:33:43,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:33:43,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:42" (1/1) ... [2022-09-16 11:33:43,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:33:43,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:33:43,072 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 11:33:43,093 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 11:33:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:33:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:33:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:33:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:33:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:33:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:33:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:33:43,120 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:33:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:33:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:33:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:33:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 11:33:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 11:33:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:33:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:33:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:33:43,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:33:43,123 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 11:33:43,260 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:33:43,261 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:33:43,698 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:33:44,047 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:33:44,047 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:33:44,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:33:44 BoogieIcfgContainer [2022-09-16 11:33:44,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:33:44,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:33:44,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:33:44,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:33:44,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:33:42" (1/3) ... [2022-09-16 11:33:44,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0f92d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:33:44, skipping insertion in model container [2022-09-16 11:33:44,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:42" (2/3) ... [2022-09-16 11:33:44,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0f92d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:33:44, skipping insertion in model container [2022-09-16 11:33:44,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:33:44" (3/3) ... [2022-09-16 11:33:44,058 INFO L112 eAbstractionObserver]: Analyzing ICFG mix051_pso.opt_rmo.opt_tso.opt.i [2022-09-16 11:33:44,074 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:33:44,075 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 11:33:44,075 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:33:44,155 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:33:44,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 139 transitions, 298 flow [2022-09-16 11:33:44,266 INFO L130 PetriNetUnfolder]: 2/135 cut-off events. [2022-09-16 11:33:44,266 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:33:44,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 135 events. 2/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2022-09-16 11:33:44,274 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 139 transitions, 298 flow [2022-09-16 11:33:44,281 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 135 transitions, 282 flow [2022-09-16 11:33:44,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:33:44,303 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=false, 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;@17a7e2b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:33:44,303 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 11:33:44,325 INFO L130 PetriNetUnfolder]: 0/55 cut-off events. [2022-09-16 11:33:44,325 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:33:44,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:44,326 INFO L208 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1] [2022-09-16 11:33:44,327 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:33:44,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:44,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1028527355, now seen corresponding path program 1 times [2022-09-16 11:33:44,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:44,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209022346] [2022-09-16 11:33:44,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:44,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:44,645 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 11:33:44,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:44,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209022346] [2022-09-16 11:33:44,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209022346] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:44,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:44,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:33:44,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590333647] [2022-09-16 11:33:44,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:44,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:33:44,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:44,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:33:44,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:33:44,730 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 139 [2022-09-16 11:33:44,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 135 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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 11:33:44,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:44,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 139 [2022-09-16 11:33:44,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:45,692 INFO L130 PetriNetUnfolder]: 2210/3915 cut-off events. [2022-09-16 11:33:45,692 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-09-16 11:33:45,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7220 conditions, 3915 events. 2210/3915 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 28930 event pairs, 1786 based on Foata normal form. 503/2998 useless extension candidates. Maximal degree in co-relation 7163. Up to 3146 conditions per place. [2022-09-16 11:33:45,756 INFO L137 encePairwiseOnDemand]: 124/139 looper letters, 29 selfloop transitions, 5 changer transitions 0/144 dead transitions. [2022-09-16 11:33:45,757 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 144 transitions, 377 flow [2022-09-16 11:33:45,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:33:45,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:33:45,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2022-09-16 11:33:45,777 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9304556354916067 [2022-09-16 11:33:45,778 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2022-09-16 11:33:45,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2022-09-16 11:33:45,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:45,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2022-09-16 11:33:45,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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 11:33:45,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 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 11:33:45,798 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 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 11:33:45,800 INFO L175 Difference]: Start difference. First operand has 146 places, 135 transitions, 282 flow. Second operand 3 states and 388 transitions. [2022-09-16 11:33:45,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 144 transitions, 377 flow [2022-09-16 11:33:45,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 144 transitions, 370 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:33:45,812 INFO L231 Difference]: Finished difference. Result has 144 places, 136 transitions, 319 flow [2022-09-16 11:33:45,814 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=144, PETRI_TRANSITIONS=136} [2022-09-16 11:33:45,818 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, -2 predicate places. [2022-09-16 11:33:45,819 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 136 transitions, 319 flow [2022-09-16 11:33:45,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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 11:33:45,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:45,820 INFO L208 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:33:45,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:33:45,821 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:33:45,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:45,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1757254423, now seen corresponding path program 1 times [2022-09-16 11:33:45,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:45,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160423385] [2022-09-16 11:33:45,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:45,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:45,940 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 11:33:45,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:45,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160423385] [2022-09-16 11:33:45,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160423385] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:45,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:45,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:33:45,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695809512] [2022-09-16 11:33:45,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:45,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:33:45,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:45,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:33:45,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:33:45,946 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 139 [2022-09-16 11:33:45,947 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 136 transitions, 319 flow. Second operand has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 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 11:33:45,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:45,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 139 [2022-09-16 11:33:45,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:46,491 INFO L130 PetriNetUnfolder]: 1230/2631 cut-off events. [2022-09-16 11:33:46,492 INFO L131 PetriNetUnfolder]: For 151/151 co-relation queries the response was YES. [2022-09-16 11:33:46,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5861 conditions, 2631 events. 1230/2631 cut-off events. For 151/151 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 20742 event pairs, 534 based on Foata normal form. 0/1961 useless extension candidates. Maximal degree in co-relation 5805. Up to 1142 conditions per place. [2022-09-16 11:33:46,562 INFO L137 encePairwiseOnDemand]: 126/139 looper letters, 36 selfloop transitions, 13 changer transitions 0/159 dead transitions. [2022-09-16 11:33:46,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 159 transitions, 489 flow [2022-09-16 11:33:46,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:33:46,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:33:46,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 509 transitions. [2022-09-16 11:33:46,573 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9154676258992805 [2022-09-16 11:33:46,573 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 509 transitions. [2022-09-16 11:33:46,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 509 transitions. [2022-09-16 11:33:46,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:46,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 509 transitions. [2022-09-16 11:33:46,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.25) internal successors, (509), 4 states have internal predecessors, (509), 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 11:33:46,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 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 11:33:46,578 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 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 11:33:46,578 INFO L175 Difference]: Start difference. First operand has 144 places, 136 transitions, 319 flow. Second operand 4 states and 509 transitions. [2022-09-16 11:33:46,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 159 transitions, 489 flow [2022-09-16 11:33:46,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 159 transitions, 484 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:33:46,584 INFO L231 Difference]: Finished difference. Result has 148 places, 144 transitions, 417 flow [2022-09-16 11:33:46,585 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=417, PETRI_PLACES=148, PETRI_TRANSITIONS=144} [2022-09-16 11:33:46,585 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, 2 predicate places. [2022-09-16 11:33:46,586 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 144 transitions, 417 flow [2022-09-16 11:33:46,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 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 11:33:46,586 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:46,587 INFO L208 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:33:46,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:33:46,587 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:33:46,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:46,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1757254422, now seen corresponding path program 1 times [2022-09-16 11:33:46,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:46,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008642951] [2022-09-16 11:33:46,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:46,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:46,688 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 11:33:46,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:46,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008642951] [2022-09-16 11:33:46,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008642951] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:46,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:46,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:33:46,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990168862] [2022-09-16 11:33:46,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:46,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:33:46,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:46,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:33:46,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:33:46,691 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 139 [2022-09-16 11:33:46,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 144 transitions, 417 flow. Second operand has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 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 11:33:46,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:46,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 139 [2022-09-16 11:33:46,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:46,921 INFO L130 PetriNetUnfolder]: 472/1165 cut-off events. [2022-09-16 11:33:46,921 INFO L131 PetriNetUnfolder]: For 1357/1357 co-relation queries the response was YES. [2022-09-16 11:33:46,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2858 conditions, 1165 events. 472/1165 cut-off events. For 1357/1357 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 7337 event pairs, 285 based on Foata normal form. 226/1237 useless extension candidates. Maximal degree in co-relation 2799. Up to 691 conditions per place. [2022-09-16 11:33:46,937 INFO L137 encePairwiseOnDemand]: 130/139 looper letters, 29 selfloop transitions, 5 changer transitions 0/144 dead transitions. [2022-09-16 11:33:46,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 144 transitions, 451 flow [2022-09-16 11:33:46,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:33:46,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:33:46,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 490 transitions. [2022-09-16 11:33:46,940 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8812949640287769 [2022-09-16 11:33:46,941 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 490 transitions. [2022-09-16 11:33:46,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 490 transitions. [2022-09-16 11:33:46,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:46,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 490 transitions. [2022-09-16 11:33:46,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.5) internal successors, (490), 4 states have internal predecessors, (490), 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 11:33:46,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 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 11:33:46,944 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 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 11:33:46,944 INFO L175 Difference]: Start difference. First operand has 148 places, 144 transitions, 417 flow. Second operand 4 states and 490 transitions. [2022-09-16 11:33:46,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 144 transitions, 451 flow [2022-09-16 11:33:46,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 144 transitions, 428 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-09-16 11:33:46,949 INFO L231 Difference]: Finished difference. Result has 144 places, 136 transitions, 348 flow [2022-09-16 11:33:46,950 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=348, PETRI_PLACES=144, PETRI_TRANSITIONS=136} [2022-09-16 11:33:46,950 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, -2 predicate places. [2022-09-16 11:33:46,951 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 136 transitions, 348 flow [2022-09-16 11:33:46,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 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 11:33:46,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:46,951 INFO L208 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 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 11:33:46,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:33:46,952 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:33:46,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:46,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1842184909, now seen corresponding path program 1 times [2022-09-16 11:33:46,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:46,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104943864] [2022-09-16 11:33:46,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:46,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:47,094 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 11:33:47,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:47,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104943864] [2022-09-16 11:33:47,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104943864] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:47,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:47,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:33:47,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225541650] [2022-09-16 11:33:47,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:47,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:33:47,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:47,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:33:47,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:33:47,097 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 139 [2022-09-16 11:33:47,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 136 transitions, 348 flow. Second operand has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 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 11:33:47,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:47,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 139 [2022-09-16 11:33:47,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:47,338 INFO L130 PetriNetUnfolder]: 334/895 cut-off events. [2022-09-16 11:33:47,339 INFO L131 PetriNetUnfolder]: For 390/390 co-relation queries the response was YES. [2022-09-16 11:33:47,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1918 conditions, 895 events. 334/895 cut-off events. For 390/390 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5435 event pairs, 17 based on Foata normal form. 0/867 useless extension candidates. Maximal degree in co-relation 1860. Up to 203 conditions per place. [2022-09-16 11:33:47,353 INFO L137 encePairwiseOnDemand]: 130/139 looper letters, 34 selfloop transitions, 13 changer transitions 4/161 dead transitions. [2022-09-16 11:33:47,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 161 transitions, 528 flow [2022-09-16 11:33:47,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:33:47,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:33:47,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 625 transitions. [2022-09-16 11:33:47,356 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8992805755395683 [2022-09-16 11:33:47,356 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 625 transitions. [2022-09-16 11:33:47,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 625 transitions. [2022-09-16 11:33:47,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:47,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 625 transitions. [2022-09-16 11:33:47,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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 11:33:47,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 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 11:33:47,360 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 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 11:33:47,360 INFO L175 Difference]: Start difference. First operand has 144 places, 136 transitions, 348 flow. Second operand 5 states and 625 transitions. [2022-09-16 11:33:47,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 161 transitions, 528 flow [2022-09-16 11:33:47,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 161 transitions, 522 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:33:47,365 INFO L231 Difference]: Finished difference. Result has 147 places, 136 transitions, 384 flow [2022-09-16 11:33:47,369 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=384, PETRI_PLACES=147, PETRI_TRANSITIONS=136} [2022-09-16 11:33:47,370 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, 1 predicate places. [2022-09-16 11:33:47,370 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 136 transitions, 384 flow [2022-09-16 11:33:47,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 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 11:33:47,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:47,372 INFO L208 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:33:47,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:33:47,373 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:33:47,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:47,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1226024402, now seen corresponding path program 1 times [2022-09-16 11:33:47,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:47,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802407753] [2022-09-16 11:33:47,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:47,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:47,472 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 11:33:47,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:47,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802407753] [2022-09-16 11:33:47,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802407753] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:47,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:47,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:33:47,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352193042] [2022-09-16 11:33:47,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:47,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:33:47,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:47,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:33:47,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:33:47,476 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 139 [2022-09-16 11:33:47,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 136 transitions, 384 flow. Second operand has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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 11:33:47,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:47,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 139 [2022-09-16 11:33:47,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:47,689 INFO L130 PetriNetUnfolder]: 315/855 cut-off events. [2022-09-16 11:33:47,690 INFO L131 PetriNetUnfolder]: For 502/502 co-relation queries the response was YES. [2022-09-16 11:33:47,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2100 conditions, 855 events. 315/855 cut-off events. For 502/502 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5057 event pairs, 17 based on Foata normal form. 12/851 useless extension candidates. Maximal degree in co-relation 2041. Up to 191 conditions per place. [2022-09-16 11:33:47,695 INFO L137 encePairwiseOnDemand]: 130/139 looper letters, 0 selfloop transitions, 0 changer transitions 153/153 dead transitions. [2022-09-16 11:33:47,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 153 transitions, 492 flow [2022-09-16 11:33:47,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:33:47,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:33:47,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 731 transitions. [2022-09-16 11:33:47,697 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8764988009592326 [2022-09-16 11:33:47,697 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 731 transitions. [2022-09-16 11:33:47,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 731 transitions. [2022-09-16 11:33:47,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:47,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 731 transitions. [2022-09-16 11:33:47,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.83333333333333) internal successors, (731), 6 states have internal predecessors, (731), 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 11:33:47,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 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 11:33:47,703 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 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 11:33:47,703 INFO L175 Difference]: Start difference. First operand has 147 places, 136 transitions, 384 flow. Second operand 6 states and 731 transitions. [2022-09-16 11:33:47,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 153 transitions, 492 flow [2022-09-16 11:33:47,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 153 transitions, 437 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-09-16 11:33:47,712 INFO L231 Difference]: Finished difference. Result has 142 places, 0 transitions, 0 flow [2022-09-16 11:33:47,712 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=142, PETRI_TRANSITIONS=0} [2022-09-16 11:33:47,714 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, -4 predicate places. [2022-09-16 11:33:47,715 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 0 transitions, 0 flow [2022-09-16 11:33:47,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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 11:33:47,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-09-16 11:33:47,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-09-16 11:33:47,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-09-16 11:33:47,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-09-16 11:33:47,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-09-16 11:33:47,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-09-16 11:33:47,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-09-16 11:33:47,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-09-16 11:33:47,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-09-16 11:33:47,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-09-16 11:33:47,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-09-16 11:33:47,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-09-16 11:33:47,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-09-16 11:33:47,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-09-16 11:33:47,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-09-16 11:33:47,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-09-16 11:33:47,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-09-16 11:33:47,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-09-16 11:33:47,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-09-16 11:33:47,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-09-16 11:33:47,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:33:47,723 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-09-16 11:33:47,732 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:33:47,732 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:33:47,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:33:47 BasicIcfg [2022-09-16 11:33:47,737 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:33:47,737 INFO L158 Benchmark]: Toolchain (without parser) took 5300.44ms. Allocated memory was 168.8MB in the beginning and 444.6MB in the end (delta: 275.8MB). Free memory was 144.8MB in the beginning and 332.2MB in the end (delta: -187.4MB). Peak memory consumption was 200.3MB. Max. memory is 8.0GB. [2022-09-16 11:33:47,738 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 168.8MB. Free memory is still 129.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:33:47,738 INFO L158 Benchmark]: CACSL2BoogieTranslator took 496.93ms. Allocated memory was 168.8MB in the beginning and 209.7MB in the end (delta: 40.9MB). Free memory was 144.5MB in the beginning and 172.4MB in the end (delta: -27.8MB). Peak memory consumption was 16.2MB. Max. memory is 8.0GB. [2022-09-16 11:33:47,738 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.85ms. Allocated memory is still 209.7MB. Free memory was 172.4MB in the beginning and 169.9MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:33:47,739 INFO L158 Benchmark]: Boogie Preprocessor took 46.94ms. Allocated memory is still 209.7MB. Free memory was 169.9MB in the beginning and 167.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:33:47,739 INFO L158 Benchmark]: RCFGBuilder took 1013.06ms. Allocated memory is still 209.7MB. Free memory was 167.8MB in the beginning and 143.7MB in the end (delta: 24.1MB). Peak memory consumption was 48.5MB. Max. memory is 8.0GB. [2022-09-16 11:33:47,740 INFO L158 Benchmark]: TraceAbstraction took 3685.22ms. Allocated memory was 209.7MB in the beginning and 444.6MB in the end (delta: 234.9MB). Free memory was 143.2MB in the beginning and 332.2MB in the end (delta: -189.0MB). Peak memory consumption was 157.6MB. Max. memory is 8.0GB. [2022-09-16 11:33:47,741 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 168.8MB. Free memory is still 129.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 496.93ms. Allocated memory was 168.8MB in the beginning and 209.7MB in the end (delta: 40.9MB). Free memory was 144.5MB in the beginning and 172.4MB in the end (delta: -27.8MB). Peak memory consumption was 16.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.85ms. Allocated memory is still 209.7MB. Free memory was 172.4MB in the beginning and 169.9MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.94ms. Allocated memory is still 209.7MB. Free memory was 169.9MB in the beginning and 167.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1013.06ms. Allocated memory is still 209.7MB. Free memory was 167.8MB in the beginning and 143.7MB in the end (delta: 24.1MB). Peak memory consumption was 48.5MB. Max. memory is 8.0GB. * TraceAbstraction took 3685.22ms. Allocated memory was 209.7MB in the beginning and 444.6MB in the end (delta: 234.9MB). Free memory was 143.2MB in the beginning and 332.2MB in the end (delta: -189.0MB). Peak memory consumption was 157.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 758]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 758]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 179 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 144 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 71 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 256 IncrementalHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 17 mSDtfsCounter, 256 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=417occurred in iteration=2, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 333 NumberOfCodeBlocks, 333 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 328 ConstructedInterpolants, 0 QuantifiedInterpolants, 904 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:33:47,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...