/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.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:33:51,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:33:51,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:33:51,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:33:51,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:33:51,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:33:51,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:33:51,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:33:51,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:33:51,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:33:51,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:33:51,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:33:51,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:33:51,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:33:51,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:33:51,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:33:51,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:33:51,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:33:51,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:33:51,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:33:51,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:33:51,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:33:51,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:33:51,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:33:51,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:33:51,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:33:51,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:33:51,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:33:51,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:33:51,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:33:51,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:33:51,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:33:51,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:33:51,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:33:51,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:33:51,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:33:51,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:33:51,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:33:51,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:33:51,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:33:51,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:33:51,072 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 11:33:51,103 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:33:51,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:33:51,104 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:33:51,105 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:33:51,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:33:51,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:33:51,105 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:33:51,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:33:51,106 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:33:51,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:33:51,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:33:51,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:33:51,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:33:51,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:33:51,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:33:51,106 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:33:51,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:33:51,107 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:33:51,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:33:51,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:33:51,107 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:33:51,107 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:33:51,107 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:33:51,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:33:51,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:33:51,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:33:51,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:33:51,108 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:33:51,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:33:51,108 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:33:51,108 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:33:51,108 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:33:51,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:33:51,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:33:51,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:33:51,349 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:33:51,353 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:33:51,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix055.opt.i [2022-09-16 11:33:51,414 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/255a42628/8009d0a7a0764a6bbb731b3e93157615/FLAG6651ca3a5 [2022-09-16 11:33:51,885 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:33:51,886 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix055.opt.i [2022-09-16 11:33:51,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/255a42628/8009d0a7a0764a6bbb731b3e93157615/FLAG6651ca3a5 [2022-09-16 11:33:51,912 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/255a42628/8009d0a7a0764a6bbb731b3e93157615 [2022-09-16 11:33:51,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:33:51,916 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:33:51,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:33:51,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:33:51,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:33:51,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:33:51" (1/1) ... [2022-09-16 11:33:51,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cdff3be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:51, skipping insertion in model container [2022-09-16 11:33:51,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:33:51" (1/1) ... [2022-09-16 11:33:51,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:33:51,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:33:52,209 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.opt.i[944,957] [2022-09-16 11:33:52,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:33:52,456 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:33:52,472 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.opt.i[944,957] [2022-09-16 11:33:52,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:33:52,553 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:33:52,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:52 WrapperNode [2022-09-16 11:33:52,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:33:52,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:33:52,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:33:52,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:33:52,564 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 11:33:52,597 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 11:33:52,642 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 292 [2022-09-16 11:33:52,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:33:52,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:33:52,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:33:52,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:33:52,654 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 11:33:52,654 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 11:33:52,671 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 11:33:52,672 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 11:33:52,679 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 11:33:52,682 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 11:33:52,700 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 11:33:52,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:33:52,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:33:52,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:33:52,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:33:52,706 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 11:33:52,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:33:52,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:33:52,745 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 11:33:52,773 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 11:33:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:33:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:33:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:33:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:33:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:33:52,791 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:33:52,791 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:33:52,791 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:33:52,791 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:33:52,791 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:33:52,791 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:33:52,792 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 11:33:52,792 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 11:33:52,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:33:52,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:33:52,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:33:52,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:33:52,794 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 11:33:52,999 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:33:53,000 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:33:53,483 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:33:53,960 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:33:53,961 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:33:53,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:33:53 BoogieIcfgContainer [2022-09-16 11:33:53,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:33:53,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:33:53,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:33:53,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:33:53,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:33:51" (1/3) ... [2022-09-16 11:33:53,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40897f67 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 11:33:53,972 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 11:33:53,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40897f67 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 11:33:53,973 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 11:33:53,974 INFO L112 eAbstractionObserver]: Analyzing ICFG mix055.opt.i [2022-09-16 11:33:53,992 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:33:53,993 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 11:33:53,993 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:33:54,069 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:33:54,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 139 transitions, 298 flow [2022-09-16 11:33:54,187 INFO L130 PetriNetUnfolder]: 2/135 cut-off events. [2022-09-16 11:33:54,188 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:33:54,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 135 events. 2/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2022-09-16 11:33:54,193 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 139 transitions, 298 flow [2022-09-16 11:33:54,200 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 135 transitions, 282 flow [2022-09-16 11:33:54,215 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:33:54,224 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;@26dd0edb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:33:54,224 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 11:33:54,244 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-09-16 11:33:54,245 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:33:54,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:54,246 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:33:54,247 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:33:54,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:54,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1416515045, now seen corresponding path program 1 times [2022-09-16 11:33:54,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:54,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974677892] [2022-09-16 11:33:54,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:54,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:54,573 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 11:33:54,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:54,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974677892] [2022-09-16 11:33:54,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974677892] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:54,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:54,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:33:54,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565556037] [2022-09-16 11:33:54,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:54,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:33:54,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:54,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:33:54,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:33:54,620 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 139 [2022-09-16 11:33:54,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 135 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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 11:33:54,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:54,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 139 [2022-09-16 11:33:54,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:56,421 INFO L130 PetriNetUnfolder]: 3018/10725 cut-off events. [2022-09-16 11:33:56,421 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-09-16 11:33:56,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15144 conditions, 10725 events. 3018/10725 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 125487 event pairs, 2469 based on Foata normal form. 577/9158 useless extension candidates. Maximal degree in co-relation 15088. Up to 4247 conditions per place. [2022-09-16 11:33:56,599 INFO L137 encePairwiseOnDemand]: 124/139 looper letters, 31 selfloop transitions, 5 changer transitions 0/145 dead transitions. [2022-09-16 11:33:56,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 145 transitions, 383 flow [2022-09-16 11:33:56,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:33:56,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:33:56,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2022-09-16 11:33:56,620 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9280575539568345 [2022-09-16 11:33:56,621 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 387 transitions. [2022-09-16 11:33:56,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 387 transitions. [2022-09-16 11:33:56,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:56,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 387 transitions. [2022-09-16 11:33:56,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 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 11:33:56,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:56,640 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:56,642 INFO L175 Difference]: Start difference. First operand has 146 places, 135 transitions, 282 flow. Second operand 3 states and 387 transitions. [2022-09-16 11:33:56,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 145 transitions, 383 flow [2022-09-16 11:33:56,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 145 transitions, 376 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:33:56,655 INFO L231 Difference]: Finished difference. Result has 144 places, 136 transitions, 319 flow [2022-09-16 11:33:56,657 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=144, PETRI_TRANSITIONS=136} [2022-09-16 11:33:56,660 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, -2 predicate places. [2022-09-16 11:33:56,661 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 136 transitions, 319 flow [2022-09-16 11:33:56,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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 11:33:56,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:56,661 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] [2022-09-16 11:33:56,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:33:56,662 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:33:56,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:56,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1370379578, now seen corresponding path program 1 times [2022-09-16 11:33:56,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:56,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826490683] [2022-09-16 11:33:56,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:56,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:56,784 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 11:33:56,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:56,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826490683] [2022-09-16 11:33:56,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826490683] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:56,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:56,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:33:56,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261430475] [2022-09-16 11:33:56,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:56,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:33:56,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:56,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:33:56,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:33:56,788 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 139 [2022-09-16 11:33:56,789 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 136 transitions, 319 flow. Second operand has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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 11:33:56,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:56,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 139 [2022-09-16 11:33:56,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:57,628 INFO L130 PetriNetUnfolder]: 1696/5696 cut-off events. [2022-09-16 11:33:57,628 INFO L131 PetriNetUnfolder]: For 268/268 co-relation queries the response was YES. [2022-09-16 11:33:57,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9997 conditions, 5696 events. 1696/5696 cut-off events. For 268/268 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 57959 event pairs, 747 based on Foata normal form. 0/4713 useless extension candidates. Maximal degree in co-relation 9942. Up to 1506 conditions per place. [2022-09-16 11:33:57,692 INFO L137 encePairwiseOnDemand]: 126/139 looper letters, 39 selfloop transitions, 13 changer transitions 0/161 dead transitions. [2022-09-16 11:33:57,693 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 161 transitions, 499 flow [2022-09-16 11:33:57,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:33:57,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:33:57,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2022-09-16 11:33:57,696 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9136690647482014 [2022-09-16 11:33:57,696 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 508 transitions. [2022-09-16 11:33:57,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 508 transitions. [2022-09-16 11:33:57,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:57,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 508 transitions. [2022-09-16 11:33:57,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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 11:33:57,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:57,701 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:57,701 INFO L175 Difference]: Start difference. First operand has 144 places, 136 transitions, 319 flow. Second operand 4 states and 508 transitions. [2022-09-16 11:33:57,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 161 transitions, 499 flow [2022-09-16 11:33:57,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 161 transitions, 494 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:33:57,714 INFO L231 Difference]: Finished difference. Result has 148 places, 144 transitions, 417 flow [2022-09-16 11:33:57,715 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=417, PETRI_PLACES=148, PETRI_TRANSITIONS=144} [2022-09-16 11:33:57,715 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, 2 predicate places. [2022-09-16 11:33:57,716 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 144 transitions, 417 flow [2022-09-16 11:33:57,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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 11:33:57,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:57,716 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] [2022-09-16 11:33:57,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:33:57,717 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:33:57,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:57,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1370379577, now seen corresponding path program 1 times [2022-09-16 11:33:57,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:57,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370322603] [2022-09-16 11:33:57,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:57,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:57,819 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 11:33:57,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:57,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370322603] [2022-09-16 11:33:57,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370322603] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:57,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:57,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:33:57,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964527874] [2022-09-16 11:33:57,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:57,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:33:57,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:57,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:33:57,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:33:57,825 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 139 [2022-09-16 11:33:57,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 144 transitions, 417 flow. Second operand has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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 11:33:57,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:57,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 139 [2022-09-16 11:33:57,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:58,235 INFO L130 PetriNetUnfolder]: 646/2801 cut-off events. [2022-09-16 11:33:58,236 INFO L131 PetriNetUnfolder]: For 2098/2098 co-relation queries the response was YES. [2022-09-16 11:33:58,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5031 conditions, 2801 events. 646/2801 cut-off events. For 2098/2098 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 25338 event pairs, 400 based on Foata normal form. 297/2836 useless extension candidates. Maximal degree in co-relation 4973. Up to 931 conditions per place. [2022-09-16 11:33:58,265 INFO L137 encePairwiseOnDemand]: 130/139 looper letters, 31 selfloop transitions, 5 changer transitions 0/145 dead transitions. [2022-09-16 11:33:58,265 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 145 transitions, 457 flow [2022-09-16 11:33:58,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:33:58,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:33:58,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 488 transitions. [2022-09-16 11:33:58,268 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8776978417266187 [2022-09-16 11:33:58,268 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 488 transitions. [2022-09-16 11:33:58,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 488 transitions. [2022-09-16 11:33:58,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:58,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 488 transitions. [2022-09-16 11:33:58,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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 11:33:58,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:58,271 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:58,271 INFO L175 Difference]: Start difference. First operand has 148 places, 144 transitions, 417 flow. Second operand 4 states and 488 transitions. [2022-09-16 11:33:58,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 145 transitions, 457 flow [2022-09-16 11:33:58,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 145 transitions, 434 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-09-16 11:33:58,276 INFO L231 Difference]: Finished difference. Result has 144 places, 136 transitions, 348 flow [2022-09-16 11:33:58,277 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=348, PETRI_PLACES=144, PETRI_TRANSITIONS=136} [2022-09-16 11:33:58,277 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, -2 predicate places. [2022-09-16 11:33:58,278 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 136 transitions, 348 flow [2022-09-16 11:33:58,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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 11:33:58,278 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:58,278 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:33:58,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:33:58,279 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 11:33:58,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:58,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1512651245, now seen corresponding path program 1 times [2022-09-16 11:33:58,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:58,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961651099] [2022-09-16 11:33:58,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:58,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:58,382 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 11:33:58,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:58,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961651099] [2022-09-16 11:33:58,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961651099] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:58,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:58,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:33:58,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908971858] [2022-09-16 11:33:58,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:58,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:33:58,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:58,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:33:58,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:33:58,389 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 139 [2022-09-16 11:33:58,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 136 transitions, 348 flow. Second operand has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 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 11:33:58,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:58,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 139 [2022-09-16 11:33:58,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:58,669 INFO L130 PetriNetUnfolder]: 454/1245 cut-off events. [2022-09-16 11:33:58,669 INFO L131 PetriNetUnfolder]: For 513/513 co-relation queries the response was YES. [2022-09-16 11:33:58,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2583 conditions, 1245 events. 454/1245 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 8299 event pairs, 24 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 2526. Up to 266 conditions per place. [2022-09-16 11:33:58,679 INFO L137 encePairwiseOnDemand]: 130/139 looper letters, 38 selfloop transitions, 13 changer transitions 4/164 dead transitions. [2022-09-16 11:33:58,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 164 transitions, 542 flow [2022-09-16 11:33:58,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:33:58,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:33:58,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 624 transitions. [2022-09-16 11:33:58,682 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.897841726618705 [2022-09-16 11:33:58,682 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 624 transitions. [2022-09-16 11:33:58,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 624 transitions. [2022-09-16 11:33:58,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:58,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 624 transitions. [2022-09-16 11:33:58,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 124.8) internal successors, (624), 5 states have internal predecessors, (624), 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 11:33:58,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:58,687 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:58,687 INFO L175 Difference]: Start difference. First operand has 144 places, 136 transitions, 348 flow. Second operand 5 states and 624 transitions. [2022-09-16 11:33:58,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 164 transitions, 542 flow [2022-09-16 11:33:58,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 164 transitions, 536 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:33:58,693 INFO L231 Difference]: Finished difference. Result has 147 places, 136 transitions, 384 flow [2022-09-16 11:33:58,694 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=384, PETRI_PLACES=147, PETRI_TRANSITIONS=136} [2022-09-16 11:33:58,697 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, 1 predicate places. [2022-09-16 11:33:58,698 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 136 transitions, 384 flow [2022-09-16 11:33:58,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 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 11:33:58,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:58,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:33:58,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:33:58,701 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 11:33:58,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:58,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1710504424, now seen corresponding path program 1 times [2022-09-16 11:33:58,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:58,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939881024] [2022-09-16 11:33:58,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:58,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:58,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:33:58,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:58,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939881024] [2022-09-16 11:33:58,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939881024] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:58,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:58,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:33:58,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368268796] [2022-09-16 11:33:58,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:58,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:33:58,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:58,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:33:58,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:33:58,847 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 139 [2022-09-16 11:33:58,848 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 136 transitions, 384 flow. Second operand has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 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 11:33:58,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:58,848 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 139 [2022-09-16 11:33:58,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:33:59,117 INFO L130 PetriNetUnfolder]: 427/1190 cut-off events. [2022-09-16 11:33:59,118 INFO L131 PetriNetUnfolder]: For 659/659 co-relation queries the response was YES. [2022-09-16 11:33:59,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2814 conditions, 1190 events. 427/1190 cut-off events. For 659/659 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7815 event pairs, 24 based on Foata normal form. 16/1186 useless extension candidates. Maximal degree in co-relation 2756. Up to 255 conditions per place. [2022-09-16 11:33:59,127 INFO L137 encePairwiseOnDemand]: 130/139 looper letters, 0 selfloop transitions, 0 changer transitions 156/156 dead transitions. [2022-09-16 11:33:59,127 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 156 transitions, 506 flow [2022-09-16 11:33:59,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:33:59,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:33:59,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 729 transitions. [2022-09-16 11:33:59,130 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8741007194244604 [2022-09-16 11:33:59,130 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 729 transitions. [2022-09-16 11:33:59,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 729 transitions. [2022-09-16 11:33:59,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:33:59,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 729 transitions. [2022-09-16 11:33:59,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.5) internal successors, (729), 6 states have internal predecessors, (729), 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 11:33:59,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:59,135 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:33:59,135 INFO L175 Difference]: Start difference. First operand has 147 places, 136 transitions, 384 flow. Second operand 6 states and 729 transitions. [2022-09-16 11:33:59,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 156 transitions, 506 flow [2022-09-16 11:33:59,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 156 transitions, 451 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-09-16 11:33:59,143 INFO L231 Difference]: Finished difference. Result has 142 places, 0 transitions, 0 flow [2022-09-16 11:33:59,144 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=142, PETRI_TRANSITIONS=0} [2022-09-16 11:33:59,144 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, -4 predicate places. [2022-09-16 11:33:59,145 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 0 transitions, 0 flow [2022-09-16 11:33:59,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 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 11:33:59,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-09-16 11:33:59,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-09-16 11:33:59,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-09-16 11:33:59,148 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-09-16 11:33:59,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-09-16 11:33:59,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-09-16 11:33:59,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-09-16 11:33:59,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-09-16 11:33:59,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-09-16 11:33:59,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-09-16 11:33:59,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-09-16 11:33:59,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-09-16 11:33:59,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-09-16 11:33:59,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-09-16 11:33:59,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-09-16 11:33:59,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-09-16 11:33:59,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-09-16 11:33:59,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-09-16 11:33:59,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-09-16 11:33:59,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-09-16 11:33:59,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:33:59,152 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-09-16 11:33:59,159 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:33:59,160 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:33:59,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:33:59 BasicIcfg [2022-09-16 11:33:59,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:33:59,165 INFO L158 Benchmark]: Toolchain (without parser) took 7249.16ms. Allocated memory was 227.5MB in the beginning and 821.0MB in the end (delta: 593.5MB). Free memory was 197.9MB in the beginning and 584.4MB in the end (delta: -386.4MB). Peak memory consumption was 207.6MB. Max. memory is 8.0GB. [2022-09-16 11:33:59,165 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 185.6MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:33:59,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 630.93ms. Allocated memory is still 227.5MB. Free memory was 197.9MB in the beginning and 182.7MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-09-16 11:33:59,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.80ms. Allocated memory is still 227.5MB. Free memory was 182.7MB in the beginning and 179.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:33:59,166 INFO L158 Benchmark]: Boogie Preprocessor took 61.29ms. Allocated memory is still 227.5MB. Free memory was 179.6MB in the beginning and 177.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:33:59,167 INFO L158 Benchmark]: RCFGBuilder took 1259.00ms. Allocated memory is still 227.5MB. Free memory was 177.5MB in the beginning and 145.1MB in the end (delta: 32.4MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. [2022-09-16 11:33:59,167 INFO L158 Benchmark]: TraceAbstraction took 5196.85ms. Allocated memory was 227.5MB in the beginning and 821.0MB in the end (delta: 593.5MB). Free memory was 144.6MB in the beginning and 584.4MB in the end (delta: -439.8MB). Peak memory consumption was 154.2MB. Max. memory is 8.0GB. [2022-09-16 11:33:59,169 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 185.6MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 630.93ms. Allocated memory is still 227.5MB. Free memory was 197.9MB in the beginning and 182.7MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 85.80ms. Allocated memory is still 227.5MB. Free memory was 182.7MB in the beginning and 179.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 61.29ms. Allocated memory is still 227.5MB. Free memory was 179.6MB in the beginning and 177.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1259.00ms. Allocated memory is still 227.5MB. Free memory was 177.5MB in the beginning and 145.1MB in the end (delta: 32.4MB). Peak memory consumption was 50.3MB. Max. memory is 8.0GB. * TraceAbstraction took 5196.85ms. Allocated memory was 227.5MB in the beginning and 821.0MB in the end (delta: 593.5MB). Free memory was 144.6MB in the beginning and 584.4MB in the end (delta: -439.8MB). Peak memory consumption was 154.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 756]: 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: 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: 821]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: 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, 180 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: 5.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 161 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 161 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 82 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 273 IncrementalHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 17 mSDtfsCounter, 273 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=417occurred in iteration=2, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 330 NumberOfCodeBlocks, 330 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 325 ConstructedInterpolants, 0 QuantifiedInterpolants, 895 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 11:33:59,209 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...