/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/mix055_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:33:51,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:33:51,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:33:51,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:33:51,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:33:51,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:33:51,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:33:51,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:33:51,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:33:51,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:33:51,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:33:51,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:33:51,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:33:51,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:33:51,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:33:51,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:33:51,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:33:51,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:33:51,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:33:51,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:33:51,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:33:51,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:33:51,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:33:51,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:33:51,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:33:51,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:33:51,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:33:51,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:33:51,648 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:33:51,671 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:33:51,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:33:51,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:33:51,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:33:51,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:33:51,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:33:51,673 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:33:51,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:33:51,673 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:33:51,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:33:51,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:33:51,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:33:51,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:33:51,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:33:51,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:33:51,674 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:33:51,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:33:51,675 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:33:51,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:33:51,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:33:51,675 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:33:51,675 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:33:51,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:33:51,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:33:51,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:33:51,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:33:51,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:33:51,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:33:51,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:33:51,676 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:33:51,676 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:33:51,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:33:51,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:33:51,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:33:51,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:33:51,888 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:33:51,890 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:33:51,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix055_power.oepc_pso.oepc_rmo.oepc.i [2022-09-16 11:33:51,932 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c43159f2/75bad33ee87b4285abaef7edb57a7e94/FLAG6ff3b03dd [2022-09-16 11:33:52,374 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:33:52,375 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix055_power.oepc_pso.oepc_rmo.oepc.i [2022-09-16 11:33:52,384 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c43159f2/75bad33ee87b4285abaef7edb57a7e94/FLAG6ff3b03dd [2022-09-16 11:33:52,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c43159f2/75bad33ee87b4285abaef7edb57a7e94 [2022-09-16 11:33:52,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:33:52,398 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:33:52,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:33:52,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:33:52,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:33:52,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:33:52" (1/1) ... [2022-09-16 11:33:52,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19dcb322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:52, skipping insertion in model container [2022-09-16 11:33:52,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:33:52" (1/1) ... [2022-09-16 11:33:52,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:33:52,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:33:52,627 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/mix055_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-09-16 11:33:52,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:33:52,758 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:33:52,768 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/mix055_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-09-16 11:33:52,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:33:52,836 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:33:52,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:52 WrapperNode [2022-09-16 11:33:52,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:33:52,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:33:52,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:33:52,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:33:52,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:52" (1/1) ... [2022-09-16 11:33:52,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:52" (1/1) ... [2022-09-16 11:33:52,870 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 193 [2022-09-16 11:33:52,871 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:33:52,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:33:52,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:33:52,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:33:52,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:52" (1/1) ... [2022-09-16 11:33:52,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:52" (1/1) ... [2022-09-16 11:33:52,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:52" (1/1) ... [2022-09-16 11:33:52,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:52" (1/1) ... [2022-09-16 11:33:52,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:52" (1/1) ... [2022-09-16 11:33:52,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:52" (1/1) ... [2022-09-16 11:33:52,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:52" (1/1) ... [2022-09-16 11:33:52,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:33:52,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:33:52,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:33:52,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:33:52,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:52" (1/1) ... [2022-09-16 11:33:52,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:33:52,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:33:52,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 11:33:52,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 11:33:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:33:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:33:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:33:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:33:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:33:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:33:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:33:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:33:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:33:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:33:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:33:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 11:33:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 11:33:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:33:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:33:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:33:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:33:52,990 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:33:53,117 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:33:53,118 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:33:53,587 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:33:53,897 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:33:53,898 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:33:53,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:33:53 BoogieIcfgContainer [2022-09-16 11:33:53,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:33:53,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:33:53,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:33:53,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:33:53,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:33:52" (1/3) ... [2022-09-16 11:33:53,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1003b061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:33:53, skipping insertion in model container [2022-09-16 11:33:53,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:52" (2/3) ... [2022-09-16 11:33:53,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1003b061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:33:53, skipping insertion in model container [2022-09-16 11:33:53,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:33:53" (3/3) ... [2022-09-16 11:33:53,906 INFO L112 eAbstractionObserver]: Analyzing ICFG mix055_power.oepc_pso.oepc_rmo.oepc.i [2022-09-16 11:33:53,921 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:33:53,921 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 11:33:53,922 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:33:53,983 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:33:54,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 141 transitions, 302 flow [2022-09-16 11:33:54,070 INFO L130 PetriNetUnfolder]: 2/137 cut-off events. [2022-09-16 11:33:54,070 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:33:54,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 137 events. 2/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2022-09-16 11:33:54,073 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 141 transitions, 302 flow [2022-09-16 11:33:54,078 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 148 places, 137 transitions, 286 flow [2022-09-16 11:33:54,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:33:54,095 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;@601a48b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:33:54,096 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 11:33:54,111 INFO L130 PetriNetUnfolder]: 0/55 cut-off events. [2022-09-16 11:33:54,111 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:33:54,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:54,112 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:33:54,113 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:33:54,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:54,117 INFO L85 PathProgramCache]: Analyzing trace with hash 146140956, now seen corresponding path program 1 times [2022-09-16 11:33:54,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:54,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668575509] [2022-09-16 11:33:54,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:54,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:54,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:33:54,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:54,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668575509] [2022-09-16 11:33:54,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668575509] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:54,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:54,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:33:54,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654950752] [2022-09-16 11:33:54,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:54,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:33:54,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:54,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:33:54,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:33:54,384 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 141 [2022-09-16 11:33:54,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 137 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:54,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:54,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 141 [2022-09-16 11:33:54,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:55,448 INFO L130 PetriNetUnfolder]: 4102/6988 cut-off events. [2022-09-16 11:33:55,449 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2022-09-16 11:33:55,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13013 conditions, 6988 events. 4102/6988 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 591. Compared 54600 event pairs, 1225 based on Foata normal form. 1049/6141 useless extension candidates. Maximal degree in co-relation 12957. Up to 5438 conditions per place. [2022-09-16 11:33:55,525 INFO L137 encePairwiseOnDemand]: 126/141 looper letters, 35 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2022-09-16 11:33:55,526 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 149 transitions, 399 flow [2022-09-16 11:33:55,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:33:55,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:33:55,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 391 transitions. [2022-09-16 11:33:55,540 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9243498817966903 [2022-09-16 11:33:55,540 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 391 transitions. [2022-09-16 11:33:55,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 391 transitions. [2022-09-16 11:33:55,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:55,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 391 transitions. [2022-09-16 11:33:55,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:55,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:55,554 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:55,555 INFO L175 Difference]: Start difference. First operand has 148 places, 137 transitions, 286 flow. Second operand 3 states and 391 transitions. [2022-09-16 11:33:55,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 149 transitions, 399 flow [2022-09-16 11:33:55,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 149 transitions, 392 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:33:55,563 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 323 flow [2022-09-16 11:33:55,565 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=323, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2022-09-16 11:33:55,569 INFO L287 CegarLoopForPetriNet]: 148 programPoint places, -2 predicate places. [2022-09-16 11:33:55,569 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 323 flow [2022-09-16 11:33:55,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:55,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:55,570 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] [2022-09-16 11:33:55,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:33:55,570 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 11:33:55,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:55,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1598565048, now seen corresponding path program 1 times [2022-09-16 11:33:55,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:55,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126396838] [2022-09-16 11:33:55,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:55,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:55,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:33:55,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:55,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126396838] [2022-09-16 11:33:55,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126396838] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:55,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:55,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:33:55,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5291984] [2022-09-16 11:33:55,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:55,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:33:55,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:55,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:33:55,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:33:55,679 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 141 [2022-09-16 11:33:55,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 323 flow. Second operand has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:55,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:55,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 141 [2022-09-16 11:33:55,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:56,245 INFO L130 PetriNetUnfolder]: 2267/4197 cut-off events. [2022-09-16 11:33:56,245 INFO L131 PetriNetUnfolder]: For 116/116 co-relation queries the response was YES. [2022-09-16 11:33:56,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9176 conditions, 4197 events. 2267/4197 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 32084 event pairs, 553 based on Foata normal form. 0/3562 useless extension candidates. Maximal degree in co-relation 9121. Up to 2842 conditions per place. [2022-09-16 11:33:56,281 INFO L137 encePairwiseOnDemand]: 132/141 looper letters, 31 selfloop transitions, 5 changer transitions 0/145 dead transitions. [2022-09-16 11:33:56,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 145 transitions, 407 flow [2022-09-16 11:33:56,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:33:56,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:33:56,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 492 transitions. [2022-09-16 11:33:56,284 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8723404255319149 [2022-09-16 11:33:56,284 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 492 transitions. [2022-09-16 11:33:56,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 492 transitions. [2022-09-16 11:33:56,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:56,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 492 transitions. [2022-09-16 11:33:56,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:56,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:56,287 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:56,287 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 323 flow. Second operand 4 states and 492 transitions. [2022-09-16 11:33:56,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 145 transitions, 407 flow [2022-09-16 11:33:56,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 145 transitions, 402 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:33:56,292 INFO L231 Difference]: Finished difference. Result has 144 places, 134 transitions, 312 flow [2022-09-16 11:33:56,293 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=312, PETRI_PLACES=144, PETRI_TRANSITIONS=134} [2022-09-16 11:33:56,293 INFO L287 CegarLoopForPetriNet]: 148 programPoint places, -4 predicate places. [2022-09-16 11:33:56,294 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 134 transitions, 312 flow [2022-09-16 11:33:56,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:56,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:56,294 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] [2022-09-16 11:33:56,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:33:56,294 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 11:33:56,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:56,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1598565047, now seen corresponding path program 1 times [2022-09-16 11:33:56,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:56,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800293521] [2022-09-16 11:33:56,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:56,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:56,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:33:56,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:56,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800293521] [2022-09-16 11:33:56,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800293521] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:56,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:56,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:33:56,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721516636] [2022-09-16 11:33:56,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:56,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:33:56,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:56,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:33:56,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:33:56,386 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 141 [2022-09-16 11:33:56,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 134 transitions, 312 flow. Second operand has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:56,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:56,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 141 [2022-09-16 11:33:56,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:56,763 INFO L130 PetriNetUnfolder]: 1367/3071 cut-off events. [2022-09-16 11:33:56,763 INFO L131 PetriNetUnfolder]: For 552/552 co-relation queries the response was YES. [2022-09-16 11:33:56,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6088 conditions, 3071 events. 1367/3071 cut-off events. For 552/552 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 22494 event pairs, 408 based on Foata normal form. 0/2825 useless extension candidates. Maximal degree in co-relation 6032. Up to 917 conditions per place. [2022-09-16 11:33:56,786 INFO L137 encePairwiseOnDemand]: 132/141 looper letters, 41 selfloop transitions, 9 changer transitions 0/159 dead transitions. [2022-09-16 11:33:56,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 159 transitions, 480 flow [2022-09-16 11:33:56,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:33:56,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:33:56,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 506 transitions. [2022-09-16 11:33:56,788 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8971631205673759 [2022-09-16 11:33:56,788 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 506 transitions. [2022-09-16 11:33:56,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 506 transitions. [2022-09-16 11:33:56,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:56,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 506 transitions. [2022-09-16 11:33:56,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.5) internal successors, (506), 4 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:56,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:56,792 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 141.0) internal successors, (705), 5 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:56,792 INFO L175 Difference]: Start difference. First operand has 144 places, 134 transitions, 312 flow. Second operand 4 states and 506 transitions. [2022-09-16 11:33:56,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 159 transitions, 480 flow [2022-09-16 11:33:56,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 159 transitions, 474 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:33:56,797 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 364 flow [2022-09-16 11:33:56,797 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=364, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2022-09-16 11:33:56,799 INFO L287 CegarLoopForPetriNet]: 148 programPoint places, -2 predicate places. [2022-09-16 11:33:56,799 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 364 flow [2022-09-16 11:33:56,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:56,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:56,799 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:33:56,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:33:56,800 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:33:56,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:56,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1544372286, now seen corresponding path program 1 times [2022-09-16 11:33:56,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:56,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637436963] [2022-09-16 11:33:56,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:56,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:56,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:33:56,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:56,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637436963] [2022-09-16 11:33:56,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637436963] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:56,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:56,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:33:56,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612246546] [2022-09-16 11:33:56,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:56,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:33:56,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:56,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:33:56,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:33:56,880 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 141 [2022-09-16 11:33:56,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 364 flow. Second operand has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:56,880 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:56,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 141 [2022-09-16 11:33:56,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:57,315 INFO L130 PetriNetUnfolder]: 1184/2500 cut-off events. [2022-09-16 11:33:57,316 INFO L131 PetriNetUnfolder]: For 948/948 co-relation queries the response was YES. [2022-09-16 11:33:57,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5848 conditions, 2500 events. 1184/2500 cut-off events. For 948/948 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 18437 event pairs, 246 based on Foata normal form. 0/2454 useless extension candidates. Maximal degree in co-relation 5791. Up to 683 conditions per place. [2022-09-16 11:33:57,338 INFO L137 encePairwiseOnDemand]: 132/141 looper letters, 46 selfloop transitions, 13 changer transitions 4/172 dead transitions. [2022-09-16 11:33:57,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 172 transitions, 586 flow [2022-09-16 11:33:57,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:33:57,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:33:57,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 632 transitions. [2022-09-16 11:33:57,340 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8964539007092198 [2022-09-16 11:33:57,340 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 632 transitions. [2022-09-16 11:33:57,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 632 transitions. [2022-09-16 11:33:57,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:57,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 632 transitions. [2022-09-16 11:33:57,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 126.4) internal successors, (632), 5 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:57,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:57,343 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:57,344 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 364 flow. Second operand 5 states and 632 transitions. [2022-09-16 11:33:57,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 172 transitions, 586 flow [2022-09-16 11:33:57,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 172 transitions, 568 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-09-16 11:33:57,352 INFO L231 Difference]: Finished difference. Result has 149 places, 138 transitions, 388 flow [2022-09-16 11:33:57,352 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=388, PETRI_PLACES=149, PETRI_TRANSITIONS=138} [2022-09-16 11:33:57,355 INFO L287 CegarLoopForPetriNet]: 148 programPoint places, 1 predicate places. [2022-09-16 11:33:57,355 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 138 transitions, 388 flow [2022-09-16 11:33:57,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:57,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:57,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:33:57,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:33:57,360 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:33:57,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:57,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1433973255, now seen corresponding path program 1 times [2022-09-16 11:33:57,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:57,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380726637] [2022-09-16 11:33:57,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:57,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:57,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:57,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:33:57,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:57,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380726637] [2022-09-16 11:33:57,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380726637] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:57,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:57,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:33:57,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032358920] [2022-09-16 11:33:57,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:57,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:33:57,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:57,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:33:57,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:33:57,482 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 141 [2022-09-16 11:33:57,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 138 transitions, 388 flow. Second operand has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:57,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:57,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 141 [2022-09-16 11:33:57,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:57,823 INFO L130 PetriNetUnfolder]: 1165/2719 cut-off events. [2022-09-16 11:33:57,823 INFO L131 PetriNetUnfolder]: For 2042/2042 co-relation queries the response was YES. [2022-09-16 11:33:57,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6136 conditions, 2719 events. 1165/2719 cut-off events. For 2042/2042 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 19249 event pairs, 375 based on Foata normal form. 12/2634 useless extension candidates. Maximal degree in co-relation 6078. Up to 683 conditions per place. [2022-09-16 11:33:57,836 INFO L137 encePairwiseOnDemand]: 132/141 looper letters, 0 selfloop transitions, 0 changer transitions 164/164 dead transitions. [2022-09-16 11:33:57,836 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 164 transitions, 538 flow [2022-09-16 11:33:57,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:33:57,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:33:57,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 737 transitions. [2022-09-16 11:33:57,838 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8711583924349882 [2022-09-16 11:33:57,838 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 737 transitions. [2022-09-16 11:33:57,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 737 transitions. [2022-09-16 11:33:57,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:57,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 737 transitions. [2022-09-16 11:33:57,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:57,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:57,841 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:57,841 INFO L175 Difference]: Start difference. First operand has 149 places, 138 transitions, 388 flow. Second operand 6 states and 737 transitions. [2022-09-16 11:33:57,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 164 transitions, 538 flow [2022-09-16 11:33:57,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 164 transitions, 483 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-09-16 11:33:57,847 INFO L231 Difference]: Finished difference. Result has 144 places, 0 transitions, 0 flow [2022-09-16 11:33:57,847 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=144, PETRI_TRANSITIONS=0} [2022-09-16 11:33:57,847 INFO L287 CegarLoopForPetriNet]: 148 programPoint places, -4 predicate places. [2022-09-16 11:33:57,847 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 0 transitions, 0 flow [2022-09-16 11:33:57,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:57,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-09-16 11:33:57,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-09-16 11:33:57,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-09-16 11:33:57,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-09-16 11:33:57,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-09-16 11:33:57,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-09-16 11:33:57,850 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-09-16 11:33:57,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-09-16 11:33:57,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-09-16 11:33:57,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-09-16 11:33:57,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-09-16 11:33:57,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-09-16 11:33:57,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-09-16 11:33:57,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-09-16 11:33:57,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-09-16 11:33:57,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-09-16 11:33:57,851 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-09-16 11:33:57,852 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-09-16 11:33:57,852 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-09-16 11:33:57,852 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-09-16 11:33:57,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:33:57,852 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-09-16 11:33:57,855 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:33:57,855 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:33:57,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:33:57 BasicIcfg [2022-09-16 11:33:57,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:33:57,859 INFO L158 Benchmark]: Toolchain (without parser) took 5461.54ms. Allocated memory was 188.7MB in the beginning and 606.1MB in the end (delta: 417.3MB). Free memory was 134.6MB in the beginning and 329.6MB in the end (delta: -194.9MB). Peak memory consumption was 325.6MB. Max. memory is 8.0GB. [2022-09-16 11:33:57,859 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 188.7MB. Free memory was 152.5MB in the beginning and 152.3MB in the end (delta: 151.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:33:57,860 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.87ms. Allocated memory is still 188.7MB. Free memory was 134.3MB in the beginning and 147.4MB in the end (delta: -13.1MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. [2022-09-16 11:33:57,860 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.87ms. Allocated memory is still 188.7MB. Free memory was 147.4MB in the beginning and 144.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:33:57,860 INFO L158 Benchmark]: Boogie Preprocessor took 24.65ms. Allocated memory is still 188.7MB. Free memory was 144.9MB in the beginning and 142.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:33:57,861 INFO L158 Benchmark]: RCFGBuilder took 1003.53ms. Allocated memory was 188.7MB in the beginning and 230.7MB in the end (delta: 41.9MB). Free memory was 142.2MB in the beginning and 134.7MB in the end (delta: 7.4MB). Peak memory consumption was 54.6MB. Max. memory is 8.0GB. [2022-09-16 11:33:57,863 INFO L158 Benchmark]: TraceAbstraction took 3957.36ms. Allocated memory was 230.7MB in the beginning and 606.1MB in the end (delta: 375.4MB). Free memory was 134.2MB in the beginning and 329.6MB in the end (delta: -195.3MB). Peak memory consumption was 283.9MB. Max. memory is 8.0GB. [2022-09-16 11:33:57,866 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 188.7MB. Free memory was 152.5MB in the beginning and 152.3MB in the end (delta: 151.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 436.87ms. Allocated memory is still 188.7MB. Free memory was 134.3MB in the beginning and 147.4MB in the end (delta: -13.1MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.87ms. Allocated memory is still 188.7MB. Free memory was 147.4MB in the beginning and 144.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.65ms. Allocated memory is still 188.7MB. Free memory was 144.9MB in the beginning and 142.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1003.53ms. Allocated memory was 188.7MB in the beginning and 230.7MB in the end (delta: 41.9MB). Free memory was 142.2MB in the beginning and 134.7MB in the end (delta: 7.4MB). Peak memory consumption was 54.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3957.36ms. Allocated memory was 230.7MB in the beginning and 606.1MB in the end (delta: 375.4MB). Free memory was 134.2MB in the beginning and 329.6MB in the end (delta: -195.3MB). Peak memory consumption was 283.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 844]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 844]: 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, 184 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 168 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 168 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 291 IncrementalHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 17 mSDtfsCounter, 291 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=388occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 339 NumberOfCodeBlocks, 339 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 334 ConstructedInterpolants, 0 QuantifiedInterpolants, 922 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:33:57,894 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...