/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/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:35:06,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:35:06,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:35:06,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 11:35:06,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:35:06,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:35:06,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:35:06,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:35:06,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:35:06,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:35:06,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:35:06,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:35:06,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:35:06,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:35:06,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:35:06,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:35:06,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:35:06,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:35:06,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:35:06,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:35:06,223 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 11:35:06,245 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:35:06,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:35:06,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:35:06,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:35:06,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:35:06,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:35:06,247 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:35:06,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:35:06,247 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:35:06,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:35:06,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:35:06,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:35:06,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:35:06,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:35:06,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:35:06,248 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:35:06,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:35:06,248 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:35:06,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:35:06,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:35:06,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:35:06,249 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:35:06,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:35:06,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:06,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:35:06,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:35:06,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:35:06,249 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:35:06,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:35:06,250 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:35:06,250 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:35:06,250 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:35:06,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:35:06,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:35:06,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:35:06,506 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:35:06,507 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:35:06,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-09-16 11:35:06,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c77ea77e/e6cb44a2968740dfa067ec144b53b7bd/FLAGa7f49207d [2022-09-16 11:35:07,004 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:35:07,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-09-16 11:35:07,018 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c77ea77e/e6cb44a2968740dfa067ec144b53b7bd/FLAGa7f49207d [2022-09-16 11:35:07,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c77ea77e/e6cb44a2968740dfa067ec144b53b7bd [2022-09-16 11:35:07,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:35:07,036 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:35:07,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:07,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:35:07,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:35:07,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:07" (1/1) ... [2022-09-16 11:35:07,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f57e87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:07, skipping insertion in model container [2022-09-16 11:35:07,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:07" (1/1) ... [2022-09-16 11:35:07,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:35:07,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:35:07,257 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/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-09-16 11:35:07,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:07,415 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:35:07,430 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/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-09-16 11:35:07,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:07,516 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:35:07,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:07 WrapperNode [2022-09-16 11:35:07,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:07,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:07,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:35:07,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:35:07,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:07" (1/1) ... [2022-09-16 11:35:07,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:07" (1/1) ... [2022-09-16 11:35:07,577 INFO L138 Inliner]: procedures = 177, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2022-09-16 11:35:07,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:07,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:35:07,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:35:07,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:35:07,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:07" (1/1) ... [2022-09-16 11:35:07,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:07" (1/1) ... [2022-09-16 11:35:07,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:07" (1/1) ... [2022-09-16 11:35:07,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:07" (1/1) ... [2022-09-16 11:35:07,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:07" (1/1) ... [2022-09-16 11:35:07,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:07" (1/1) ... [2022-09-16 11:35:07,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:07" (1/1) ... [2022-09-16 11:35:07,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:35:07,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:35:07,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:35:07,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:35:07,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:07" (1/1) ... [2022-09-16 11:35:07,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:07,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:35:07,658 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 11:35:07,663 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 11:35:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:35:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:35:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:35:07,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:35:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:35:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:35:07,686 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:35:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:35:07,686 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:35:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:35:07,686 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:35:07,686 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 11:35:07,687 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 11:35:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:35:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:35:07,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:35:07,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:35:07,688 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 11:35:07,807 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:35:07,825 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:35:07,993 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:35:08,022 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:35:08,022 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:35:08,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:08 BoogieIcfgContainer [2022-09-16 11:35:08,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:35:08,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:35:08,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:35:08,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:35:08,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:35:07" (1/3) ... [2022-09-16 11:35:08,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aec6303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:08, skipping insertion in model container [2022-09-16 11:35:08,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:07" (2/3) ... [2022-09-16 11:35:08,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aec6303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:08, skipping insertion in model container [2022-09-16 11:35:08,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:08" (3/3) ... [2022-09-16 11:35:08,032 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-09-16 11:35:08,051 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:35:08,051 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 11:35:08,052 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:35:08,116 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:35:08,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 113 transitions, 246 flow [2022-09-16 11:35:08,196 INFO L130 PetriNetUnfolder]: 2/109 cut-off events. [2022-09-16 11:35:08,197 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:08,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 109 events. 2/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-09-16 11:35:08,201 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 113 transitions, 246 flow [2022-09-16 11:35:08,205 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 109 transitions, 230 flow [2022-09-16 11:35:08,223 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:35:08,230 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;@7e994ac6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:35:08,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 11:35:08,242 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2022-09-16 11:35:08,243 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:08,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:08,244 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] [2022-09-16 11:35:08,245 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 11:35:08,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:08,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1097119196, now seen corresponding path program 1 times [2022-09-16 11:35:08,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:08,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067578068] [2022-09-16 11:35:08,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:08,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:08,439 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 11:35:08,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:08,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067578068] [2022-09-16 11:35:08,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067578068] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:08,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:08,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:35:08,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794493992] [2022-09-16 11:35:08,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:08,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:35:08,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:08,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:35:08,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:35:08,485 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 113 [2022-09-16 11:35:08,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 109 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 11:35:08,489 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:08,489 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 113 [2022-09-16 11:35:08,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:08,840 INFO L130 PetriNetUnfolder]: 796/1479 cut-off events. [2022-09-16 11:35:08,840 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-09-16 11:35:08,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2780 conditions, 1479 events. 796/1479 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 8939 event pairs, 431 based on Foata normal form. 240/1076 useless extension candidates. Maximal degree in co-relation 2745. Up to 1192 conditions per place. [2022-09-16 11:35:08,874 INFO L137 encePairwiseOnDemand]: 98/113 looper letters, 21 selfloop transitions, 5 changer transitions 0/114 dead transitions. [2022-09-16 11:35:08,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 114 transitions, 301 flow [2022-09-16 11:35:08,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:35:08,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:35:08,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 314 transitions. [2022-09-16 11:35:08,893 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9262536873156342 [2022-09-16 11:35:08,893 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 314 transitions. [2022-09-16 11:35:08,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 314 transitions. [2022-09-16 11:35:08,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:08,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 314 transitions. [2022-09-16 11:35:08,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 11:35:08,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 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 11:35:08,910 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 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 11:35:08,912 INFO L175 Difference]: Start difference. First operand has 120 places, 109 transitions, 230 flow. Second operand 3 states and 314 transitions. [2022-09-16 11:35:08,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 114 transitions, 301 flow [2022-09-16 11:35:08,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 114 transitions, 294 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:35:08,923 INFO L231 Difference]: Finished difference. Result has 118 places, 110 transitions, 267 flow [2022-09-16 11:35:08,925 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=267, PETRI_PLACES=118, PETRI_TRANSITIONS=110} [2022-09-16 11:35:08,929 INFO L287 CegarLoopForPetriNet]: 120 programPoint places, -2 predicate places. [2022-09-16 11:35:08,929 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 110 transitions, 267 flow [2022-09-16 11:35:08,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 11:35:08,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:08,930 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] [2022-09-16 11:35:08,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:35:08,930 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:35:08,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:08,932 INFO L85 PathProgramCache]: Analyzing trace with hash 2009556499, now seen corresponding path program 1 times [2022-09-16 11:35:08,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:08,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751587195] [2022-09-16 11:35:08,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:08,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:09,048 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 11:35:09,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:09,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751587195] [2022-09-16 11:35:09,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751587195] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:09,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:09,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:35:09,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124560864] [2022-09-16 11:35:09,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:09,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:35:09,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:09,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:35:09,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:35:09,052 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 113 [2022-09-16 11:35:09,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 110 transitions, 267 flow. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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 11:35:09,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:09,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 113 [2022-09-16 11:35:09,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:09,228 INFO L130 PetriNetUnfolder]: 287/761 cut-off events. [2022-09-16 11:35:09,229 INFO L131 PetriNetUnfolder]: For 42/48 co-relation queries the response was YES. [2022-09-16 11:35:09,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1638 conditions, 761 events. 287/761 cut-off events. For 42/48 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4157 event pairs, 196 based on Foata normal form. 0/573 useless extension candidates. Maximal degree in co-relation 1604. Up to 442 conditions per place. [2022-09-16 11:35:09,239 INFO L137 encePairwiseOnDemand]: 104/113 looper letters, 17 selfloop transitions, 5 changer transitions 0/110 dead transitions. [2022-09-16 11:35:09,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 110 transitions, 309 flow [2022-09-16 11:35:09,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:35:09,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:35:09,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 394 transitions. [2022-09-16 11:35:09,242 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8716814159292036 [2022-09-16 11:35:09,242 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 394 transitions. [2022-09-16 11:35:09,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 394 transitions. [2022-09-16 11:35:09,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:09,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 394 transitions. [2022-09-16 11:35:09,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 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 11:35:09,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 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 11:35:09,247 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 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 11:35:09,247 INFO L175 Difference]: Start difference. First operand has 118 places, 110 transitions, 267 flow. Second operand 4 states and 394 transitions. [2022-09-16 11:35:09,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 110 transitions, 309 flow [2022-09-16 11:35:09,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 110 transitions, 304 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:35:09,251 INFO L231 Difference]: Finished difference. Result has 116 places, 106 transitions, 256 flow [2022-09-16 11:35:09,251 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=256, PETRI_PLACES=116, PETRI_TRANSITIONS=106} [2022-09-16 11:35:09,252 INFO L287 CegarLoopForPetriNet]: 120 programPoint places, -4 predicate places. [2022-09-16 11:35:09,252 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 106 transitions, 256 flow [2022-09-16 11:35:09,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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 11:35:09,253 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:09,253 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] [2022-09-16 11:35:09,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:35:09,253 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:35:09,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:09,256 INFO L85 PathProgramCache]: Analyzing trace with hash 925026586, now seen corresponding path program 1 times [2022-09-16 11:35:09,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:09,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503174945] [2022-09-16 11:35:09,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:09,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:09,377 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 11:35:09,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:09,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503174945] [2022-09-16 11:35:09,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503174945] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:09,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:09,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:35:09,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604046631] [2022-09-16 11:35:09,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:09,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:35:09,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:09,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:35:09,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:35:09,380 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 113 [2022-09-16 11:35:09,381 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 106 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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 11:35:09,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:09,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 113 [2022-09-16 11:35:09,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:09,473 INFO L130 PetriNetUnfolder]: 127/395 cut-off events. [2022-09-16 11:35:09,474 INFO L131 PetriNetUnfolder]: For 46/48 co-relation queries the response was YES. [2022-09-16 11:35:09,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 836 conditions, 395 events. 127/395 cut-off events. For 46/48 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1864 event pairs, 22 based on Foata normal form. 2/333 useless extension candidates. Maximal degree in co-relation 801. Up to 192 conditions per place. [2022-09-16 11:35:09,478 INFO L137 encePairwiseOnDemand]: 104/113 looper letters, 20 selfloop transitions, 9 changer transitions 0/117 dead transitions. [2022-09-16 11:35:09,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 117 transitions, 354 flow [2022-09-16 11:35:09,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:35:09,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:35:09,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 401 transitions. [2022-09-16 11:35:09,480 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8871681415929203 [2022-09-16 11:35:09,480 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 401 transitions. [2022-09-16 11:35:09,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 401 transitions. [2022-09-16 11:35:09,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:09,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 401 transitions. [2022-09-16 11:35:09,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 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 11:35:09,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 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 11:35:09,483 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 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 11:35:09,483 INFO L175 Difference]: Start difference. First operand has 116 places, 106 transitions, 256 flow. Second operand 4 states and 401 transitions. [2022-09-16 11:35:09,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 117 transitions, 354 flow [2022-09-16 11:35:09,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 117 transitions, 348 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:35:09,488 INFO L231 Difference]: Finished difference. Result has 118 places, 110 transitions, 308 flow [2022-09-16 11:35:09,489 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=308, PETRI_PLACES=118, PETRI_TRANSITIONS=110} [2022-09-16 11:35:09,490 INFO L287 CegarLoopForPetriNet]: 120 programPoint places, -2 predicate places. [2022-09-16 11:35:09,491 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 110 transitions, 308 flow [2022-09-16 11:35:09,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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 11:35:09,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:09,491 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] [2022-09-16 11:35:09,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:35:09,492 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 11:35:09,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:09,492 INFO L85 PathProgramCache]: Analyzing trace with hash 799072933, now seen corresponding path program 1 times [2022-09-16 11:35:09,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:09,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061915976] [2022-09-16 11:35:09,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:09,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:09,598 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 11:35:09,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:09,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061915976] [2022-09-16 11:35:09,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061915976] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:09,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:09,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:35:09,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309434611] [2022-09-16 11:35:09,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:09,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:35:09,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:09,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:35:09,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:35:09,607 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 113 [2022-09-16 11:35:09,608 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 110 transitions, 308 flow. Second operand has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 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 11:35:09,608 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:09,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 113 [2022-09-16 11:35:09,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:09,692 INFO L130 PetriNetUnfolder]: 70/388 cut-off events. [2022-09-16 11:35:09,692 INFO L131 PetriNetUnfolder]: For 160/165 co-relation queries the response was YES. [2022-09-16 11:35:09,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 774 conditions, 388 events. 70/388 cut-off events. For 160/165 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1741 event pairs, 0 based on Foata normal form. 2/373 useless extension candidates. Maximal degree in co-relation 738. Up to 90 conditions per place. [2022-09-16 11:35:09,695 INFO L137 encePairwiseOnDemand]: 104/113 looper letters, 18 selfloop transitions, 13 changer transitions 4/123 dead transitions. [2022-09-16 11:35:09,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 123 transitions, 432 flow [2022-09-16 11:35:09,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:35:09,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:35:09,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 499 transitions. [2022-09-16 11:35:09,697 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8831858407079646 [2022-09-16 11:35:09,697 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 499 transitions. [2022-09-16 11:35:09,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 499 transitions. [2022-09-16 11:35:09,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:09,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 499 transitions. [2022-09-16 11:35:09,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 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 11:35:09,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 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 11:35:09,701 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 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 11:35:09,701 INFO L175 Difference]: Start difference. First operand has 118 places, 110 transitions, 308 flow. Second operand 5 states and 499 transitions. [2022-09-16 11:35:09,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 123 transitions, 432 flow [2022-09-16 11:35:09,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 123 transitions, 414 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-09-16 11:35:09,708 INFO L231 Difference]: Finished difference. Result has 121 places, 110 transitions, 332 flow [2022-09-16 11:35:09,709 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=332, PETRI_PLACES=121, PETRI_TRANSITIONS=110} [2022-09-16 11:35:09,712 INFO L287 CegarLoopForPetriNet]: 120 programPoint places, 1 predicate places. [2022-09-16 11:35:09,712 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 110 transitions, 332 flow [2022-09-16 11:35:09,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 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 11:35:09,718 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:09,718 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] [2022-09-16 11:35:09,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:35:09,719 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 11:35:09,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:09,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1562968711, now seen corresponding path program 1 times [2022-09-16 11:35:09,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:09,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626567635] [2022-09-16 11:35:09,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:09,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:09,843 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 11:35:09,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:09,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626567635] [2022-09-16 11:35:09,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626567635] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:09,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:09,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:35:09,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749479602] [2022-09-16 11:35:09,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:09,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:35:09,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:09,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:35:09,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:35:09,847 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 113 [2022-09-16 11:35:09,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 110 transitions, 332 flow. Second operand has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 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 11:35:09,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:09,848 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 113 [2022-09-16 11:35:09,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:09,931 INFO L130 PetriNetUnfolder]: 59/357 cut-off events. [2022-09-16 11:35:09,931 INFO L131 PetriNetUnfolder]: For 262/266 co-relation queries the response was YES. [2022-09-16 11:35:09,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 357 events. 59/357 cut-off events. For 262/266 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1516 event pairs, 0 based on Foata normal form. 12/359 useless extension candidates. Maximal degree in co-relation 690. Up to 60 conditions per place. [2022-09-16 11:35:09,933 INFO L137 encePairwiseOnDemand]: 104/113 looper letters, 0 selfloop transitions, 0 changer transitions 115/115 dead transitions. [2022-09-16 11:35:09,933 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 115 transitions, 384 flow [2022-09-16 11:35:09,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:35:09,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:35:09,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 583 transitions. [2022-09-16 11:35:09,935 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.859882005899705 [2022-09-16 11:35:09,935 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 583 transitions. [2022-09-16 11:35:09,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 583 transitions. [2022-09-16 11:35:09,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:09,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 583 transitions. [2022-09-16 11:35:09,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.16666666666667) internal successors, (583), 6 states have internal predecessors, (583), 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 11:35:09,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 11:35:09,939 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 11:35:09,939 INFO L175 Difference]: Start difference. First operand has 121 places, 110 transitions, 332 flow. Second operand 6 states and 583 transitions. [2022-09-16 11:35:09,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 115 transitions, 384 flow [2022-09-16 11:35:09,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 115 transitions, 329 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-09-16 11:35:09,942 INFO L231 Difference]: Finished difference. Result has 116 places, 0 transitions, 0 flow [2022-09-16 11:35:09,942 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=116, PETRI_TRANSITIONS=0} [2022-09-16 11:35:09,943 INFO L287 CegarLoopForPetriNet]: 120 programPoint places, -4 predicate places. [2022-09-16 11:35:09,943 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 0 transitions, 0 flow [2022-09-16 11:35:09,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 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 11:35:09,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-09-16 11:35:09,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-09-16 11:35:09,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-09-16 11:35:09,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-09-16 11:35:09,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-09-16 11:35:09,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-09-16 11:35:09,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-09-16 11:35:09,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-09-16 11:35:09,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-09-16 11:35:09,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-09-16 11:35:09,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-09-16 11:35:09,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-09-16 11:35:09,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-09-16 11:35:09,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-09-16 11:35:09,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-09-16 11:35:09,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-09-16 11:35:09,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-09-16 11:35:09,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-09-16 11:35:09,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-09-16 11:35:09,949 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-09-16 11:35:09,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:35:09,949 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-09-16 11:35:09,954 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:35:09,954 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:35:09,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:35:09 BasicIcfg [2022-09-16 11:35:09,958 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:35:09,959 INFO L158 Benchmark]: Toolchain (without parser) took 2922.42ms. Allocated memory was 184.5MB in the beginning and 231.7MB in the end (delta: 47.2MB). Free memory was 159.6MB in the beginning and 189.2MB in the end (delta: -29.6MB). Peak memory consumption was 116.1MB. Max. memory is 8.0GB. [2022-09-16 11:35:09,959 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 184.5MB. Free memory is still 144.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:35:09,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.71ms. Allocated memory was 184.5MB in the beginning and 231.7MB in the end (delta: 47.2MB). Free memory was 159.6MB in the beginning and 194.7MB in the end (delta: -35.0MB). Peak memory consumption was 14.9MB. Max. memory is 8.0GB. [2022-09-16 11:35:09,960 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.26ms. Allocated memory is still 231.7MB. Free memory was 194.7MB in the beginning and 192.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:35:09,960 INFO L158 Benchmark]: Boogie Preprocessor took 41.93ms. Allocated memory is still 231.7MB. Free memory was 192.6MB in the beginning and 191.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:35:09,960 INFO L158 Benchmark]: RCFGBuilder took 403.88ms. Allocated memory is still 231.7MB. Free memory was 191.0MB in the beginning and 175.2MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-09-16 11:35:09,961 INFO L158 Benchmark]: TraceAbstraction took 1931.70ms. Allocated memory is still 231.7MB. Free memory was 174.5MB in the beginning and 189.2MB in the end (delta: -14.7MB). Peak memory consumption was 85.5MB. Max. memory is 8.0GB. [2022-09-16 11:35:09,962 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 184.5MB. Free memory is still 144.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 479.71ms. Allocated memory was 184.5MB in the beginning and 231.7MB in the end (delta: 47.2MB). Free memory was 159.6MB in the beginning and 194.7MB in the end (delta: -35.0MB). Peak memory consumption was 14.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.26ms. Allocated memory is still 231.7MB. Free memory was 194.7MB in the beginning and 192.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.93ms. Allocated memory is still 231.7MB. Free memory was 192.6MB in the beginning and 191.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 403.88ms. Allocated memory is still 231.7MB. Free memory was 191.0MB in the beginning and 175.2MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 1931.70ms. Allocated memory is still 231.7MB. Free memory was 174.5MB in the beginning and 189.2MB in the end (delta: -14.7MB). Peak memory consumption was 85.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 734]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 734]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 746]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 746]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 150 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: 1.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 52 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 17 mSDtfsCounter, 179 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=332occurred in iteration=4, 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 212 ConstructedInterpolants, 0 QuantifiedInterpolants, 556 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 11:35:09,988 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...