/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/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:34:20,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:34:20,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:34:20,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 11:34:20,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:34:20,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:34:20,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:34:20,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:34:20,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:34:20,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:34:20,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:34:20,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:34:20,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:34:20,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:34:20,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:34:20,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:34:20,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:34:20,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:34:20,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:34:20,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:34:20,147 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 11:34:20,186 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:34:20,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:34:20,187 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:34:20,187 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:34:20,187 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:34:20,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:34:20,188 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:34:20,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:34:20,188 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:34:20,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:34:20,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:34:20,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:34:20,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:34:20,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:34:20,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:34:20,189 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:34:20,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:34:20,189 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:34:20,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:34:20,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:34:20,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:34:20,190 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:34:20,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:34:20,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:34:20,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:34:20,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:34:20,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:34:20,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:34:20,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:34:20,191 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:34:20,191 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:34:20,191 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:34:20,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:34:20,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:34:20,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:34:20,572 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:34:20,572 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:34:20,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2022-09-16 11:34:20,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1adb83e6/92cd44ae28fb491d83a51a099da9b74b/FLAG6a9ff3c43 [2022-09-16 11:34:21,174 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:34:21,175 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2022-09-16 11:34:21,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1adb83e6/92cd44ae28fb491d83a51a099da9b74b/FLAG6a9ff3c43 [2022-09-16 11:34:21,598 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1adb83e6/92cd44ae28fb491d83a51a099da9b74b [2022-09-16 11:34:21,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:34:21,601 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:34:21,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:34:21,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:34:21,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:34:21,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:34:21" (1/1) ... [2022-09-16 11:34:21,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ac091a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:21, skipping insertion in model container [2022-09-16 11:34:21,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:34:21" (1/1) ... [2022-09-16 11:34:21,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:34:21,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:34:21,839 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/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i[1019,1032] [2022-09-16 11:34:22,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:34:22,026 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:34:22,033 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/safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i[1019,1032] [2022-09-16 11:34:22,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:34:22,130 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:34:22,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:22 WrapperNode [2022-09-16 11:34:22,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:34:22,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:34:22,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:34:22,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:34:22,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:22" (1/1) ... [2022-09-16 11:34:22,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:22" (1/1) ... [2022-09-16 11:34:22,186 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 178 [2022-09-16 11:34:22,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:34:22,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:34:22,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:34:22,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:34:22,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:22" (1/1) ... [2022-09-16 11:34:22,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:22" (1/1) ... [2022-09-16 11:34:22,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:22" (1/1) ... [2022-09-16 11:34:22,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:22" (1/1) ... [2022-09-16 11:34:22,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:22" (1/1) ... [2022-09-16 11:34:22,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:22" (1/1) ... [2022-09-16 11:34:22,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:22" (1/1) ... [2022-09-16 11:34:22,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:34:22,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:34:22,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:34:22,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:34:22,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:22" (1/1) ... [2022-09-16 11:34:22,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:34:22,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:34:22,271 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 11:34:22,289 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 11:34:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:34:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:34:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:34:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:34:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:34:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:34:22,306 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:34:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:34:22,306 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:34:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:34:22,306 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:34:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:34:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:34:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:34:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:34:22,308 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 11:34:22,446 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:34:22,447 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:34:22,809 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:34:23,180 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:34:23,180 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:34:23,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:34:23 BoogieIcfgContainer [2022-09-16 11:34:23,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:34:23,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:34:23,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:34:23,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:34:23,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:34:21" (1/3) ... [2022-09-16 11:34:23,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38392c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:34:23, skipping insertion in model container [2022-09-16 11:34:23,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:34:22" (2/3) ... [2022-09-16 11:34:23,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38392c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:34:23, skipping insertion in model container [2022-09-16 11:34:23,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:34:23" (3/3) ... [2022-09-16 11:34:23,189 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_power.opt_pso.oepc_pso.opt_rmo.opt.i [2022-09-16 11:34:23,203 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:34:23,204 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 11:34:23,204 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:34:23,257 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:34:23,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 118 transitions, 251 flow [2022-09-16 11:34:23,338 INFO L130 PetriNetUnfolder]: 2/115 cut-off events. [2022-09-16 11:34:23,338 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:34:23,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 115 events. 2/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2022-09-16 11:34:23,342 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 118 transitions, 251 flow [2022-09-16 11:34:23,345 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 115 transitions, 239 flow [2022-09-16 11:34:23,357 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:34:23,362 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;@48b8183a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:34:23,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-09-16 11:34:23,376 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2022-09-16 11:34:23,377 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:34:23,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:23,378 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] [2022-09-16 11:34:23,378 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:34:23,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:23,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1709388455, now seen corresponding path program 1 times [2022-09-16 11:34:23,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:23,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262665279] [2022-09-16 11:34:23,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:23,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:23,663 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 11:34:23,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:23,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262665279] [2022-09-16 11:34:23,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262665279] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:23,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:23,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:34:23,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503698584] [2022-09-16 11:34:23,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:23,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:34:23,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:23,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:34:23,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:34:23,702 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 118 [2022-09-16 11:34:23,708 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 115 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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 11:34:23,708 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:23,708 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 118 [2022-09-16 11:34:23,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:24,010 INFO L130 PetriNetUnfolder]: 425/1118 cut-off events. [2022-09-16 11:34:24,010 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-09-16 11:34:24,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1854 conditions, 1118 events. 425/1118 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 7225 event pairs, 114 based on Foata normal form. 45/901 useless extension candidates. Maximal degree in co-relation 1802. Up to 590 conditions per place. [2022-09-16 11:34:24,021 INFO L137 encePairwiseOnDemand]: 106/118 looper letters, 26 selfloop transitions, 4 changer transitions 0/123 dead transitions. [2022-09-16 11:34:24,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 123 transitions, 321 flow [2022-09-16 11:34:24,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:34:24,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:34:24,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 328 transitions. [2022-09-16 11:34:24,035 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9265536723163842 [2022-09-16 11:34:24,036 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 328 transitions. [2022-09-16 11:34:24,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 328 transitions. [2022-09-16 11:34:24,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:24,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 328 transitions. [2022-09-16 11:34:24,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 11:34:24,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 11:34:24,048 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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 11:34:24,049 INFO L175 Difference]: Start difference. First operand has 123 places, 115 transitions, 239 flow. Second operand 3 states and 328 transitions. [2022-09-16 11:34:24,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 123 transitions, 321 flow [2022-09-16 11:34:24,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 123 transitions, 316 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:34:24,058 INFO L231 Difference]: Finished difference. Result has 122 places, 115 transitions, 266 flow [2022-09-16 11:34:24,059 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=122, PETRI_TRANSITIONS=115} [2022-09-16 11:34:24,062 INFO L287 CegarLoopForPetriNet]: 123 programPoint places, -1 predicate places. [2022-09-16 11:34:24,062 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 115 transitions, 266 flow [2022-09-16 11:34:24,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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 11:34:24,062 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:24,062 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] [2022-09-16 11:34:24,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:34:24,063 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:34:24,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:24,063 INFO L85 PathProgramCache]: Analyzing trace with hash -655787275, now seen corresponding path program 1 times [2022-09-16 11:34:24,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:24,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241254215] [2022-09-16 11:34:24,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:24,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:24,144 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 11:34:24,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:24,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241254215] [2022-09-16 11:34:24,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241254215] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:24,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:24,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:34:24,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731795011] [2022-09-16 11:34:24,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:24,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:34:24,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:24,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:34:24,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:34:24,147 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 118 [2022-09-16 11:34:24,147 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 115 transitions, 266 flow. Second operand has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 11:34:24,148 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:24,148 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 118 [2022-09-16 11:34:24,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:24,336 INFO L130 PetriNetUnfolder]: 302/903 cut-off events. [2022-09-16 11:34:24,337 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2022-09-16 11:34:24,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1682 conditions, 903 events. 302/903 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5565 event pairs, 78 based on Foata normal form. 0/772 useless extension candidates. Maximal degree in co-relation 1630. Up to 386 conditions per place. [2022-09-16 11:34:24,343 INFO L137 encePairwiseOnDemand]: 111/118 looper letters, 23 selfloop transitions, 4 changer transitions 0/120 dead transitions. [2022-09-16 11:34:24,343 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 120 transitions, 328 flow [2022-09-16 11:34:24,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:34:24,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:34:24,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 414 transitions. [2022-09-16 11:34:24,345 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8771186440677966 [2022-09-16 11:34:24,345 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 414 transitions. [2022-09-16 11:34:24,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 414 transitions. [2022-09-16 11:34:24,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:24,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 414 transitions. [2022-09-16 11:34:24,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 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 11:34:24,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 11:34:24,348 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 11:34:24,348 INFO L175 Difference]: Start difference. First operand has 122 places, 115 transitions, 266 flow. Second operand 4 states and 414 transitions. [2022-09-16 11:34:24,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 120 transitions, 328 flow [2022-09-16 11:34:24,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 120 transitions, 324 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:34:24,350 INFO L231 Difference]: Finished difference. Result has 121 places, 112 transitions, 258 flow [2022-09-16 11:34:24,350 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=258, PETRI_PLACES=121, PETRI_TRANSITIONS=112} [2022-09-16 11:34:24,351 INFO L287 CegarLoopForPetriNet]: 123 programPoint places, -2 predicate places. [2022-09-16 11:34:24,351 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 112 transitions, 258 flow [2022-09-16 11:34:24,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 11:34:24,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:24,352 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] [2022-09-16 11:34:24,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:34:24,352 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:34:24,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:24,352 INFO L85 PathProgramCache]: Analyzing trace with hash -2045111214, now seen corresponding path program 1 times [2022-09-16 11:34:24,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:24,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449811311] [2022-09-16 11:34:24,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:24,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:24,405 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 11:34:24,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:24,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449811311] [2022-09-16 11:34:24,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449811311] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:24,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:24,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:34:24,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189279754] [2022-09-16 11:34:24,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:24,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:34:24,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:24,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:34:24,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:34:24,407 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 118 [2022-09-16 11:34:24,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 112 transitions, 258 flow. Second operand has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 11:34:24,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:24,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 118 [2022-09-16 11:34:24,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:24,528 INFO L130 PetriNetUnfolder]: 215/751 cut-off events. [2022-09-16 11:34:24,529 INFO L131 PetriNetUnfolder]: For 129/129 co-relation queries the response was YES. [2022-09-16 11:34:24,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1307 conditions, 751 events. 215/751 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4447 event pairs, 57 based on Foata normal form. 0/701 useless extension candidates. Maximal degree in co-relation 1254. Up to 149 conditions per place. [2022-09-16 11:34:24,533 INFO L137 encePairwiseOnDemand]: 111/118 looper letters, 27 selfloop transitions, 7 changer transitions 3/130 dead transitions. [2022-09-16 11:34:24,533 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 130 transitions, 380 flow [2022-09-16 11:34:24,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:34:24,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:34:24,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 424 transitions. [2022-09-16 11:34:24,535 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8983050847457628 [2022-09-16 11:34:24,535 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 424 transitions. [2022-09-16 11:34:24,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 424 transitions. [2022-09-16 11:34:24,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:24,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 424 transitions. [2022-09-16 11:34:24,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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 11:34:24,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 11:34:24,537 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 11:34:24,537 INFO L175 Difference]: Start difference. First operand has 121 places, 112 transitions, 258 flow. Second operand 4 states and 424 transitions. [2022-09-16 11:34:24,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 130 transitions, 380 flow [2022-09-16 11:34:24,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 130 transitions, 375 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:34:24,540 INFO L231 Difference]: Finished difference. Result has 123 places, 112 transitions, 279 flow [2022-09-16 11:34:24,541 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=279, PETRI_PLACES=123, PETRI_TRANSITIONS=112} [2022-09-16 11:34:24,542 INFO L287 CegarLoopForPetriNet]: 123 programPoint places, 0 predicate places. [2022-09-16 11:34:24,542 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 112 transitions, 279 flow [2022-09-16 11:34:24,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 11:34:24,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:24,543 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] [2022-09-16 11:34:24,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:34:24,543 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:34:24,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:24,543 INFO L85 PathProgramCache]: Analyzing trace with hash 936687214, now seen corresponding path program 1 times [2022-09-16 11:34:24,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:24,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586109114] [2022-09-16 11:34:24,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:24,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:24,643 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 11:34:24,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:24,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586109114] [2022-09-16 11:34:24,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586109114] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:24,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:24,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:34:24,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76219116] [2022-09-16 11:34:24,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:24,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:34:24,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:24,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:34:24,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:34:24,645 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 118 [2022-09-16 11:34:24,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 112 transitions, 279 flow. Second operand has 5 states, 5 states have (on average 98.2) internal successors, (491), 5 states have internal predecessors, (491), 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 11:34:24,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:24,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 118 [2022-09-16 11:34:24,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:24,801 INFO L130 PetriNetUnfolder]: 201/719 cut-off events. [2022-09-16 11:34:24,801 INFO L131 PetriNetUnfolder]: For 273/273 co-relation queries the response was YES. [2022-09-16 11:34:24,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1374 conditions, 719 events. 201/719 cut-off events. For 273/273 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4189 event pairs, 57 based on Foata normal form. 9/691 useless extension candidates. Maximal degree in co-relation 1320. Up to 149 conditions per place. [2022-09-16 11:34:24,804 INFO L137 encePairwiseOnDemand]: 111/118 looper letters, 0 selfloop transitions, 0 changer transitions 124/124 dead transitions. [2022-09-16 11:34:24,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 124 transitions, 359 flow [2022-09-16 11:34:24,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:34:24,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:34:24,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 514 transitions. [2022-09-16 11:34:24,806 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8711864406779661 [2022-09-16 11:34:24,806 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 514 transitions. [2022-09-16 11:34:24,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 514 transitions. [2022-09-16 11:34:24,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:24,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 514 transitions. [2022-09-16 11:34:24,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 102.8) internal successors, (514), 5 states have internal predecessors, (514), 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 11:34:24,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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 11:34:24,809 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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 11:34:24,809 INFO L175 Difference]: Start difference. First operand has 123 places, 112 transitions, 279 flow. Second operand 5 states and 514 transitions. [2022-09-16 11:34:24,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 124 transitions, 359 flow [2022-09-16 11:34:24,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 124 transitions, 335 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-09-16 11:34:24,812 INFO L231 Difference]: Finished difference. Result has 120 places, 0 transitions, 0 flow [2022-09-16 11:34:24,812 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=120, PETRI_TRANSITIONS=0} [2022-09-16 11:34:24,814 INFO L287 CegarLoopForPetriNet]: 123 programPoint places, -3 predicate places. [2022-09-16 11:34:24,814 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 0 transitions, 0 flow [2022-09-16 11:34:24,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 98.2) internal successors, (491), 5 states have internal predecessors, (491), 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 11:34:24,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-09-16 11:34:24,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-09-16 11:34:24,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-09-16 11:34:24,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-09-16 11:34:24,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-09-16 11:34:24,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-09-16 11:34:24,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-09-16 11:34:24,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-09-16 11:34:24,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-09-16 11:34:24,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-09-16 11:34:24,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-09-16 11:34:24,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-09-16 11:34:24,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-09-16 11:34:24,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-09-16 11:34:24,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-09-16 11:34:24,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:34:24,824 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-09-16 11:34:24,829 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:34:24,829 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:34:24,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:34:24 BasicIcfg [2022-09-16 11:34:24,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:34:24,837 INFO L158 Benchmark]: Toolchain (without parser) took 3235.47ms. Allocated memory was 175.1MB in the beginning and 218.1MB in the end (delta: 43.0MB). Free memory was 148.8MB in the beginning and 140.4MB in the end (delta: 8.4MB). Peak memory consumption was 129.5MB. Max. memory is 8.0GB. [2022-09-16 11:34:24,837 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 175.1MB. Free memory is still 135.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:34:24,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.23ms. Allocated memory is still 175.1MB. Free memory was 148.8MB in the beginning and 135.7MB in the end (delta: 13.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-09-16 11:34:24,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.79ms. Allocated memory is still 175.1MB. Free memory was 135.7MB in the beginning and 133.1MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:24,839 INFO L158 Benchmark]: Boogie Preprocessor took 46.39ms. Allocated memory is still 175.1MB. Free memory was 133.1MB in the beginning and 131.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:24,840 INFO L158 Benchmark]: RCFGBuilder took 947.59ms. Allocated memory was 175.1MB in the beginning and 218.1MB in the end (delta: 43.0MB). Free memory was 131.0MB in the beginning and 143.0MB in the end (delta: -12.1MB). Peak memory consumption was 49.7MB. Max. memory is 8.0GB. [2022-09-16 11:34:24,843 INFO L158 Benchmark]: TraceAbstraction took 1652.48ms. Allocated memory is still 218.1MB. Free memory was 142.5MB in the beginning and 140.4MB in the end (delta: 2.1MB). Peak memory consumption was 80.2MB. Max. memory is 8.0GB. [2022-09-16 11:34:24,845 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 175.1MB. Free memory is still 135.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 529.23ms. Allocated memory is still 175.1MB. Free memory was 148.8MB in the beginning and 135.7MB in the end (delta: 13.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.79ms. Allocated memory is still 175.1MB. Free memory was 135.7MB in the beginning and 133.1MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.39ms. Allocated memory is still 175.1MB. Free memory was 133.1MB in the beginning and 131.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 947.59ms. Allocated memory was 175.1MB in the beginning and 218.1MB in the end (delta: 43.0MB). Free memory was 131.0MB in the beginning and 143.0MB in the end (delta: -12.1MB). Peak memory consumption was 49.7MB. Max. memory is 8.0GB. * TraceAbstraction took 1652.48ms. Allocated memory is still 218.1MB. Free memory was 142.5MB in the beginning and 140.4MB in the end (delta: 2.1MB). Peak memory consumption was 80.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 814]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 814]: 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 7 procedures, 149 locations, 15 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: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 157 IncrementalHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 10 mSDtfsCounter, 157 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=279occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 236 NumberOfCodeBlocks, 236 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 232 ConstructedInterpolants, 0 QuantifiedInterpolants, 632 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:34:24,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...