/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/mix032.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:32:53,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:32:53,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:32:53,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:32:53,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:32:53,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:32:53,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:32:53,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:32:53,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:32:53,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:32:53,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:32:53,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:32:53,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:32:53,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:32:53,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:32:53,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:32:53,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:32:53,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:32:53,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:32:54,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:32:54,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:32:54,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:32:54,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:32:54,008 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:32:54,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:32:54,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:32:54,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:32:54,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:32:54,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:32:54,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:32:54,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:32:54,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:32:54,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:32:54,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:32:54,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:32:54,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:32:54,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:32:54,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:32:54,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:32:54,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:32:54,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:32:54,025 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 11:32:54,053 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:32:54,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:32:54,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:32:54,054 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:32:54,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:32:54,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:32:54,055 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:32:54,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:32:54,057 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:32:54,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:32:54,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:32:54,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:32:54,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:32:54,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:32:54,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:32:54,058 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:32:54,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:32:54,058 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:32:54,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:32:54,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:32:54,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:32:54,059 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:32:54,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:32:54,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:32:54,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:32:54,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:32:54,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:32:54,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:32:54,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:32:54,061 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:32:54,062 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:32:54,062 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:32:54,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:32:54,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:32:54,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:32:54,335 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:32:54,336 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:32:54,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix032.oepc.i [2022-09-16 11:32:54,404 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c994183be/3e65b356c3e441bba34e2764ff8a93e4/FLAGbf41bee84 [2022-09-16 11:32:54,854 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:32:54,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix032.oepc.i [2022-09-16 11:32:54,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c994183be/3e65b356c3e441bba34e2764ff8a93e4/FLAGbf41bee84 [2022-09-16 11:32:54,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c994183be/3e65b356c3e441bba34e2764ff8a93e4 [2022-09-16 11:32:54,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:32:54,906 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:32:54,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:32:54,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:32:54,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:32:54,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:32:54" (1/1) ... [2022-09-16 11:32:54,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c666567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:54, skipping insertion in model container [2022-09-16 11:32:54,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:32:54" (1/1) ... [2022-09-16 11:32:54,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:32:54,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:32:55,142 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/mix032.oepc.i[945,958] [2022-09-16 11:32:55,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:32:55,343 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:32:55,354 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/mix032.oepc.i[945,958] [2022-09-16 11:32:55,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:32:55,438 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:32:55,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:55 WrapperNode [2022-09-16 11:32:55,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:32:55,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:32:55,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:32:55,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:32:55,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:55" (1/1) ... [2022-09-16 11:32:55,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:55" (1/1) ... [2022-09-16 11:32:55,521 INFO L138 Inliner]: procedures = 176, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 183 [2022-09-16 11:32:55,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:32:55,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:32:55,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:32:55,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:32:55,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:55" (1/1) ... [2022-09-16 11:32:55,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:55" (1/1) ... [2022-09-16 11:32:55,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:55" (1/1) ... [2022-09-16 11:32:55,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:55" (1/1) ... [2022-09-16 11:32:55,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:55" (1/1) ... [2022-09-16 11:32:55,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:55" (1/1) ... [2022-09-16 11:32:55,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:55" (1/1) ... [2022-09-16 11:32:55,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:32:55,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:32:55,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:32:55,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:32:55,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:55" (1/1) ... [2022-09-16 11:32:55,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:32:55,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:32:55,609 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 11:32:55,612 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 11:32:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:32:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:32:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:32:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:32:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:32:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:32:55,679 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:32:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:32:55,679 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:32:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:32:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:32:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:32:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:32:55,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:32:55,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:32:55,698 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 11:32:55,917 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:32:55,918 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:32:56,445 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:32:56,794 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:32:56,795 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:32:56,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:32:56 BoogieIcfgContainer [2022-09-16 11:32:56,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:32:56,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:32:56,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:32:56,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:32:56,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:32:54" (1/3) ... [2022-09-16 11:32:56,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d2a8e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:32:56, skipping insertion in model container [2022-09-16 11:32:56,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:55" (2/3) ... [2022-09-16 11:32:56,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d2a8e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:32:56, skipping insertion in model container [2022-09-16 11:32:56,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:32:56" (3/3) ... [2022-09-16 11:32:56,805 INFO L112 eAbstractionObserver]: Analyzing ICFG mix032.oepc.i [2022-09-16 11:32:56,826 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:32:56,826 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 11:32:56,827 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:32:56,907 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:32:56,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 128 transitions, 271 flow [2022-09-16 11:32:57,011 INFO L130 PetriNetUnfolder]: 2/125 cut-off events. [2022-09-16 11:32:57,011 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:32:57,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 125 events. 2/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2022-09-16 11:32:57,021 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 128 transitions, 271 flow [2022-09-16 11:32:57,025 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 125 transitions, 259 flow [2022-09-16 11:32:57,034 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:32:57,039 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;@21fcbff2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:32:57,039 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-09-16 11:32:57,057 INFO L130 PetriNetUnfolder]: 0/57 cut-off events. [2022-09-16 11:32:57,057 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:32:57,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:57,058 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] [2022-09-16 11:32:57,058 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:32:57,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:57,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1409122826, now seen corresponding path program 1 times [2022-09-16 11:32:57,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:57,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345430926] [2022-09-16 11:32:57,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:57,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:57,395 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 11:32:57,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:57,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345430926] [2022-09-16 11:32:57,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345430926] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:57,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:57,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:32:57,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822450082] [2022-09-16 11:32:57,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:57,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:32:57,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:57,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:32:57,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:32:57,443 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 128 [2022-09-16 11:32:57,450 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 125 transitions, 259 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 11:32:57,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:57,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 128 [2022-09-16 11:32:57,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:57,878 INFO L130 PetriNetUnfolder]: 521/1423 cut-off events. [2022-09-16 11:32:57,879 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-09-16 11:32:57,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2306 conditions, 1423 events. 521/1423 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 9697 event pairs, 243 based on Foata normal form. 60/1187 useless extension candidates. Maximal degree in co-relation 2249. Up to 682 conditions per place. [2022-09-16 11:32:57,899 INFO L137 encePairwiseOnDemand]: 116/128 looper letters, 28 selfloop transitions, 4 changer transitions 0/134 dead transitions. [2022-09-16 11:32:57,899 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 134 transitions, 347 flow [2022-09-16 11:32:57,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:32:57,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:32:57,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2022-09-16 11:32:57,917 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9296875 [2022-09-16 11:32:57,918 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 357 transitions. [2022-09-16 11:32:57,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 357 transitions. [2022-09-16 11:32:57,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:57,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 357 transitions. [2022-09-16 11:32:57,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 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 11:32:57,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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 11:32:57,934 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 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 11:32:57,936 INFO L175 Difference]: Start difference. First operand has 133 places, 125 transitions, 259 flow. Second operand 3 states and 357 transitions. [2022-09-16 11:32:57,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 134 transitions, 347 flow [2022-09-16 11:32:57,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 134 transitions, 342 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:32:57,945 INFO L231 Difference]: Finished difference. Result has 132 places, 125 transitions, 286 flow [2022-09-16 11:32:57,947 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=132, PETRI_TRANSITIONS=125} [2022-09-16 11:32:57,951 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, -1 predicate places. [2022-09-16 11:32:57,951 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 125 transitions, 286 flow [2022-09-16 11:32:57,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 11:32:57,952 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:57,952 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] [2022-09-16 11:32:57,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:32:57,954 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:32:57,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:57,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1969921750, now seen corresponding path program 1 times [2022-09-16 11:32:57,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:57,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663457466] [2022-09-16 11:32:57,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:57,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:58,123 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 11:32:58,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:58,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663457466] [2022-09-16 11:32:58,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663457466] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:58,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:58,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:32:58,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202720348] [2022-09-16 11:32:58,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:58,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:32:58,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:58,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:32:58,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:32:58,128 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 128 [2022-09-16 11:32:58,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 125 transitions, 286 flow. Second operand has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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 11:32:58,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:58,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 128 [2022-09-16 11:32:58,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:58,401 INFO L130 PetriNetUnfolder]: 388/1075 cut-off events. [2022-09-16 11:32:58,402 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-09-16 11:32:58,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2027 conditions, 1075 events. 388/1075 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 6978 event pairs, 112 based on Foata normal form. 0/927 useless extension candidates. Maximal degree in co-relation 1970. Up to 462 conditions per place. [2022-09-16 11:32:58,417 INFO L137 encePairwiseOnDemand]: 121/128 looper letters, 25 selfloop transitions, 4 changer transitions 0/131 dead transitions. [2022-09-16 11:32:58,417 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 131 transitions, 354 flow [2022-09-16 11:32:58,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:32:58,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:32:58,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 452 transitions. [2022-09-16 11:32:58,420 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8828125 [2022-09-16 11:32:58,420 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 452 transitions. [2022-09-16 11:32:58,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 452 transitions. [2022-09-16 11:32:58,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:58,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 452 transitions. [2022-09-16 11:32:58,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 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 11:32:58,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 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 11:32:58,424 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 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 11:32:58,424 INFO L175 Difference]: Start difference. First operand has 132 places, 125 transitions, 286 flow. Second operand 4 states and 452 transitions. [2022-09-16 11:32:58,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 131 transitions, 354 flow [2022-09-16 11:32:58,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 131 transitions, 350 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:32:58,430 INFO L231 Difference]: Finished difference. Result has 131 places, 122 transitions, 278 flow [2022-09-16 11:32:58,431 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=278, PETRI_PLACES=131, PETRI_TRANSITIONS=122} [2022-09-16 11:32:58,431 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, -2 predicate places. [2022-09-16 11:32:58,431 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 122 transitions, 278 flow [2022-09-16 11:32:58,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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 11:32:58,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:58,432 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] [2022-09-16 11:32:58,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:32:58,432 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:32:58,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:58,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1642632527, now seen corresponding path program 1 times [2022-09-16 11:32:58,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:58,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243600441] [2022-09-16 11:32:58,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:58,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:58,536 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 11:32:58,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:58,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243600441] [2022-09-16 11:32:58,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243600441] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:58,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:58,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:32:58,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619427446] [2022-09-16 11:32:58,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:58,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:32:58,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:58,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:32:58,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:32:58,542 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 128 [2022-09-16 11:32:58,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 122 transitions, 278 flow. Second operand has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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 11:32:58,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:58,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 128 [2022-09-16 11:32:58,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:58,781 INFO L130 PetriNetUnfolder]: 291/907 cut-off events. [2022-09-16 11:32:58,781 INFO L131 PetriNetUnfolder]: For 134/134 co-relation queries the response was YES. [2022-09-16 11:32:58,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1614 conditions, 907 events. 291/907 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5669 event pairs, 91 based on Foata normal form. 0/848 useless extension candidates. Maximal degree in co-relation 1556. Up to 198 conditions per place. [2022-09-16 11:32:58,788 INFO L137 encePairwiseOnDemand]: 121/128 looper letters, 30 selfloop transitions, 7 changer transitions 3/142 dead transitions. [2022-09-16 11:32:58,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 142 transitions, 410 flow [2022-09-16 11:32:58,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:32:58,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:32:58,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 463 transitions. [2022-09-16 11:32:58,790 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.904296875 [2022-09-16 11:32:58,790 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 463 transitions. [2022-09-16 11:32:58,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 463 transitions. [2022-09-16 11:32:58,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:58,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 463 transitions. [2022-09-16 11:32:58,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.75) internal successors, (463), 4 states have internal predecessors, (463), 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 11:32:58,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 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 11:32:58,794 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 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 11:32:58,794 INFO L175 Difference]: Start difference. First operand has 131 places, 122 transitions, 278 flow. Second operand 4 states and 463 transitions. [2022-09-16 11:32:58,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 142 transitions, 410 flow [2022-09-16 11:32:58,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 142 transitions, 405 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:32:58,799 INFO L231 Difference]: Finished difference. Result has 133 places, 122 transitions, 299 flow [2022-09-16 11:32:58,799 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=299, PETRI_PLACES=133, PETRI_TRANSITIONS=122} [2022-09-16 11:32:58,801 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, 0 predicate places. [2022-09-16 11:32:58,801 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 122 transitions, 299 flow [2022-09-16 11:32:58,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 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 11:32:58,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:58,802 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] [2022-09-16 11:32:58,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:32:58,803 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:32:58,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:58,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1320507390, now seen corresponding path program 1 times [2022-09-16 11:32:58,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:58,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981584438] [2022-09-16 11:32:58,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:58,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:58,967 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 11:32:58,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:58,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981584438] [2022-09-16 11:32:58,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981584438] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:58,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:58,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:32:58,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636098143] [2022-09-16 11:32:58,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:58,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:32:58,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:58,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:32:58,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:32:58,970 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 128 [2022-09-16 11:32:58,970 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 122 transitions, 299 flow. Second operand has 5 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 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 11:32:58,970 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:58,971 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 128 [2022-09-16 11:32:58,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:59,153 INFO L130 PetriNetUnfolder]: 277/875 cut-off events. [2022-09-16 11:32:59,153 INFO L131 PetriNetUnfolder]: For 303/303 co-relation queries the response was YES. [2022-09-16 11:32:59,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1708 conditions, 875 events. 277/875 cut-off events. For 303/303 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5415 event pairs, 91 based on Foata normal form. 9/838 useless extension candidates. Maximal degree in co-relation 1649. Up to 198 conditions per place. [2022-09-16 11:32:59,159 INFO L137 encePairwiseOnDemand]: 121/128 looper letters, 0 selfloop transitions, 0 changer transitions 136/136 dead transitions. [2022-09-16 11:32:59,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 136 transitions, 389 flow [2022-09-16 11:32:59,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:32:59,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:32:59,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 562 transitions. [2022-09-16 11:32:59,161 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.878125 [2022-09-16 11:32:59,161 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 562 transitions. [2022-09-16 11:32:59,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 562 transitions. [2022-09-16 11:32:59,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:59,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 562 transitions. [2022-09-16 11:32:59,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 112.4) internal successors, (562), 5 states have internal predecessors, (562), 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 11:32:59,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 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 11:32:59,165 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 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 11:32:59,165 INFO L175 Difference]: Start difference. First operand has 133 places, 122 transitions, 299 flow. Second operand 5 states and 562 transitions. [2022-09-16 11:32:59,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 136 transitions, 389 flow [2022-09-16 11:32:59,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 136 transitions, 365 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-09-16 11:32:59,170 INFO L231 Difference]: Finished difference. Result has 130 places, 0 transitions, 0 flow [2022-09-16 11:32:59,171 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=130, PETRI_TRANSITIONS=0} [2022-09-16 11:32:59,173 INFO L287 CegarLoopForPetriNet]: 133 programPoint places, -3 predicate places. [2022-09-16 11:32:59,173 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 0 transitions, 0 flow [2022-09-16 11:32:59,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 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 11:32:59,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-09-16 11:32:59,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-09-16 11:32:59,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-09-16 11:32:59,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-09-16 11:32:59,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-09-16 11:32:59,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-09-16 11:32:59,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-09-16 11:32:59,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-09-16 11:32:59,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-09-16 11:32:59,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-09-16 11:32:59,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-09-16 11:32:59,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-09-16 11:32:59,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-09-16 11:32:59,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-09-16 11:32:59,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-09-16 11:32:59,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:32:59,194 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-09-16 11:32:59,199 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:32:59,199 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:32:59,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:32:59 BasicIcfg [2022-09-16 11:32:59,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:32:59,208 INFO L158 Benchmark]: Toolchain (without parser) took 4302.23ms. Allocated memory was 179.3MB in the beginning and 216.0MB in the end (delta: 36.7MB). Free memory was 144.0MB in the beginning and 81.9MB in the end (delta: 62.1MB). Peak memory consumption was 98.6MB. Max. memory is 8.0GB. [2022-09-16 11:32:59,209 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 179.3MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:32:59,209 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.06ms. Allocated memory is still 179.3MB. Free memory was 144.0MB in the beginning and 135.9MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-16 11:32:59,209 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.40ms. Allocated memory is still 179.3MB. Free memory was 135.9MB in the beginning and 133.1MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:32:59,211 INFO L158 Benchmark]: Boogie Preprocessor took 36.90ms. Allocated memory is still 179.3MB. Free memory was 133.1MB in the beginning and 131.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:32:59,211 INFO L158 Benchmark]: RCFGBuilder took 1237.02ms. Allocated memory was 179.3MB in the beginning and 216.0MB in the end (delta: 36.7MB). Free memory was 131.0MB in the beginning and 148.2MB in the end (delta: -17.2MB). Peak memory consumption was 74.2MB. Max. memory is 8.0GB. [2022-09-16 11:32:59,215 INFO L158 Benchmark]: TraceAbstraction took 2408.76ms. Allocated memory is still 216.0MB. Free memory was 147.7MB in the beginning and 81.9MB in the end (delta: 65.8MB). Peak memory consumption was 66.3MB. Max. memory is 8.0GB. [2022-09-16 11:32:59,218 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 179.3MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 529.06ms. Allocated memory is still 179.3MB. Free memory was 144.0MB in the beginning and 135.9MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 82.40ms. Allocated memory is still 179.3MB. Free memory was 135.9MB in the beginning and 133.1MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.90ms. Allocated memory is still 179.3MB. Free memory was 133.1MB in the beginning and 131.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1237.02ms. Allocated memory was 179.3MB in the beginning and 216.0MB in the end (delta: 36.7MB). Free memory was 131.0MB in the beginning and 148.2MB in the end (delta: -17.2MB). Peak memory consumption was 74.2MB. Max. memory is 8.0GB. * TraceAbstraction took 2408.76ms. Allocated memory is still 216.0MB. Free memory was 147.7MB in the beginning and 81.9MB in the end (delta: 65.8MB). Peak memory consumption was 66.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 801]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 840]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 840]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 164 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 170 IncrementalHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 10 mSDtfsCounter, 170 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=299occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 268 NumberOfCodeBlocks, 268 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 264 ConstructedInterpolants, 0 QuantifiedInterpolants, 728 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:32:59,272 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...