./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44a86740b4b3d791346dd5ab0675f134d34312247f7633c0f06bf117457d4ce2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 08:58:22,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 08:58:22,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 08:58:22,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 08:58:22,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 08:58:22,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 08:58:22,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 08:58:22,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 08:58:22,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 08:58:22,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 08:58:22,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 08:58:22,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 08:58:22,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 08:58:22,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 08:58:22,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 08:58:22,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 08:58:22,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 08:58:22,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 08:58:22,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 08:58:22,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 08:58:22,407 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 08:58:22,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 08:58:22,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 08:58:22,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 08:58:22,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 08:58:22,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 08:58:22,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 08:58:22,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 08:58:22,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 08:58:22,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 08:58:22,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 08:58:22,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 08:58:22,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 08:58:22,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 08:58:22,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 08:58:22,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 08:58:22,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 08:58:22,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 08:58:22,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 08:58:22,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 08:58:22,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 08:58:22,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 08:58:22,423 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 08:58:22,460 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 08:58:22,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 08:58:22,461 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 08:58:22,462 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 08:58:22,462 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 08:58:22,462 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 08:58:22,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 08:58:22,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 08:58:22,463 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 08:58:22,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 08:58:22,464 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 08:58:22,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 08:58:22,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 08:58:22,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 08:58:22,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 08:58:22,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 08:58:22,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 08:58:22,465 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 08:58:22,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 08:58:22,465 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 08:58:22,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 08:58:22,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 08:58:22,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 08:58:22,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 08:58:22,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:58:22,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 08:58:22,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 08:58:22,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 08:58:22,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 08:58:22,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 08:58:22,468 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 08:58:22,468 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 08:58:22,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 08:58:22,468 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44a86740b4b3d791346dd5ab0675f134d34312247f7633c0f06bf117457d4ce2 [2022-07-21 08:58:22,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 08:58:22,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 08:58:22,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 08:58:22,769 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 08:58:22,770 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 08:58:22,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2022-07-21 08:58:22,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb9148a19/c949f6dc0a854c8fb78897c3ffb00944/FLAGd56055a0b [2022-07-21 08:58:23,177 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 08:58:23,177 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2022-07-21 08:58:23,188 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb9148a19/c949f6dc0a854c8fb78897c3ffb00944/FLAGd56055a0b [2022-07-21 08:58:23,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb9148a19/c949f6dc0a854c8fb78897c3ffb00944 [2022-07-21 08:58:23,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 08:58:23,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 08:58:23,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 08:58:23,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 08:58:23,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 08:58:23,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:58:23" (1/1) ... [2022-07-21 08:58:23,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5874b97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:58:23, skipping insertion in model container [2022-07-21 08:58:23,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:58:23" (1/1) ... [2022-07-21 08:58:23,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 08:58:23,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 08:58:23,755 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c[3481,3494] [2022-07-21 08:58:23,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:58:23,772 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 08:58:23,826 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c[3481,3494] [2022-07-21 08:58:23,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:58:23,836 INFO L208 MainTranslator]: Completed translation [2022-07-21 08:58:23,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:58:23 WrapperNode [2022-07-21 08:58:23,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 08:58:23,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 08:58:23,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 08:58:23,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 08:58:23,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:58:23" (1/1) ... [2022-07-21 08:58:23,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:58:23" (1/1) ... [2022-07-21 08:58:23,896 INFO L137 Inliner]: procedures = 23, calls = 45, calls flagged for inlining = 17, calls inlined = 39, statements flattened = 349 [2022-07-21 08:58:23,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 08:58:23,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 08:58:23,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 08:58:23,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 08:58:23,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:58:23" (1/1) ... [2022-07-21 08:58:23,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:58:23" (1/1) ... [2022-07-21 08:58:23,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:58:23" (1/1) ... [2022-07-21 08:58:23,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:58:23" (1/1) ... [2022-07-21 08:58:23,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:58:23" (1/1) ... [2022-07-21 08:58:23,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:58:23" (1/1) ... [2022-07-21 08:58:23,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:58:23" (1/1) ... [2022-07-21 08:58:23,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 08:58:23,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 08:58:23,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 08:58:23,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 08:58:23,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:58:23" (1/1) ... [2022-07-21 08:58:23,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:58:23,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 08:58:23,961 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) [2022-07-21 08:58:23,968 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 [2022-07-21 08:58:23,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 08:58:23,990 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-07-21 08:58:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-07-21 08:58:23,990 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-07-21 08:58:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-07-21 08:58:23,991 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-07-21 08:58:23,992 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-07-21 08:58:23,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 08:58:23,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 08:58:23,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 08:58:23,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-21 08:58:23,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-21 08:58:23,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 08:58:23,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 08:58:23,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 08:58:23,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 08:58:23,994 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-21 08:58:24,112 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 08:58:24,113 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 08:58:24,496 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 08:58:24,930 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 08:58:24,931 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 08:58:24,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:58:24 BoogieIcfgContainer [2022-07-21 08:58:24,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 08:58:24,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 08:58:24,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 08:58:24,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 08:58:24,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:58:23" (1/3) ... [2022-07-21 08:58:24,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a5b5c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:58:24, skipping insertion in model container [2022-07-21 08:58:24,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:58:23" (2/3) ... [2022-07-21 08:58:24,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a5b5c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:58:24, skipping insertion in model container [2022-07-21 08:58:24,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:58:24" (3/3) ... [2022-07-21 08:58:24,939 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-collitem-trans.wvr.c [2022-07-21 08:58:24,942 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-21 08:58:24,949 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 08:58:24,949 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 08:58:24,949 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-21 08:58:25,017 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-21 08:58:25,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 134 places, 125 transitions, 274 flow [2022-07-21 08:58:25,107 INFO L129 PetriNetUnfolder]: 1/122 cut-off events. [2022-07-21 08:58:25,108 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-21 08:58:25,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 122 events. 1/122 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2022-07-21 08:58:25,111 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 125 transitions, 274 flow [2022-07-21 08:58:25,115 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 111 transitions, 240 flow [2022-07-21 08:58:25,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 08:58:25,129 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=true, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5c65df60, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@760dfffb [2022-07-21 08:58:25,129 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-21 08:58:25,152 INFO L129 PetriNetUnfolder]: 1/110 cut-off events. [2022-07-21 08:58:25,152 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-07-21 08:58:25,153 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:58:25,153 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:58:25,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 08:58:25,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:58:25,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1818415943, now seen corresponding path program 1 times [2022-07-21 08:58:25,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:58:25,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545286298] [2022-07-21 08:58:25,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:58:25,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:58:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:58:26,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:58:26,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:58:26,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545286298] [2022-07-21 08:58:26,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545286298] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:58:26,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:58:26,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 08:58:26,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318755169] [2022-07-21 08:58:26,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:58:26,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 08:58:26,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:58:26,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 08:58:26,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 08:58:26,355 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-07-21 08:58:26,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 111 transitions, 240 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-07-21 08:58:26,360 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:58:26,360 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-07-21 08:58:26,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:58:26,926 INFO L129 PetriNetUnfolder]: 14/201 cut-off events. [2022-07-21 08:58:26,926 INFO L130 PetriNetUnfolder]: For 56/63 co-relation queries the response was YES. [2022-07-21 08:58:26,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 201 events. 14/201 cut-off events. For 56/63 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 430 event pairs, 7 based on Foata normal form. 5/198 useless extension candidates. Maximal degree in co-relation 136. Up to 46 conditions per place. [2022-07-21 08:58:26,929 INFO L132 encePairwiseOnDemand]: 115/125 looper letters, 47 selfloop transitions, 4 changer transitions 10/130 dead transitions. [2022-07-21 08:58:26,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 130 transitions, 424 flow [2022-07-21 08:58:26,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 08:58:26,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-21 08:58:26,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 885 transitions. [2022-07-21 08:58:26,942 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.708 [2022-07-21 08:58:26,942 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 885 transitions. [2022-07-21 08:58:26,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 885 transitions. [2022-07-21 08:58:26,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:58:26,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 885 transitions. [2022-07-21 08:58:26,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 88.5) internal successors, (885), 10 states have internal predecessors, (885), 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) [2022-07-21 08:58:26,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 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) [2022-07-21 08:58:26,956 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 125.0) internal successors, (1375), 11 states have internal predecessors, (1375), 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) [2022-07-21 08:58:26,957 INFO L186 Difference]: Start difference. First operand has 120 places, 111 transitions, 240 flow. Second operand 10 states and 885 transitions. [2022-07-21 08:58:26,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 130 transitions, 424 flow [2022-07-21 08:58:26,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 130 transitions, 396 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-07-21 08:58:26,962 INFO L242 Difference]: Finished difference. Result has 128 places, 110 transitions, 247 flow [2022-07-21 08:58:26,964 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=247, PETRI_PLACES=128, PETRI_TRANSITIONS=110} [2022-07-21 08:58:26,966 INFO L279 CegarLoopForPetriNet]: 120 programPoint places, 8 predicate places. [2022-07-21 08:58:26,966 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 110 transitions, 247 flow [2022-07-21 08:58:26,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-07-21 08:58:26,967 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:58:26,967 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:58:26,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 08:58:26,967 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 08:58:26,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:58:26,968 INFO L85 PathProgramCache]: Analyzing trace with hash -971427119, now seen corresponding path program 2 times [2022-07-21 08:58:26,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:58:26,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257143941] [2022-07-21 08:58:26,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:58:26,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:58:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:58:27,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:58:27,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:58:27,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257143941] [2022-07-21 08:58:27,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257143941] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:58:27,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:58:27,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 08:58:27,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241310297] [2022-07-21 08:58:27,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:58:27,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 08:58:27,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:58:27,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 08:58:27,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 08:58:27,482 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-07-21 08:58:27,483 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 110 transitions, 247 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-07-21 08:58:27,487 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:58:27,487 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-07-21 08:58:27,487 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:58:27,843 INFO L129 PetriNetUnfolder]: 13/228 cut-off events. [2022-07-21 08:58:27,843 INFO L130 PetriNetUnfolder]: For 58/66 co-relation queries the response was YES. [2022-07-21 08:58:27,844 INFO L84 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 228 events. 13/228 cut-off events. For 58/66 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 645 event pairs, 5 based on Foata normal form. 2/225 useless extension candidates. Maximal degree in co-relation 355. Up to 35 conditions per place. [2022-07-21 08:58:27,845 INFO L132 encePairwiseOnDemand]: 117/125 looper letters, 47 selfloop transitions, 5 changer transitions 8/129 dead transitions. [2022-07-21 08:58:27,845 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 129 transitions, 432 flow [2022-07-21 08:58:27,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 08:58:27,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-21 08:58:27,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 716 transitions. [2022-07-21 08:58:27,853 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.716 [2022-07-21 08:58:27,853 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 716 transitions. [2022-07-21 08:58:27,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 716 transitions. [2022-07-21 08:58:27,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:58:27,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 716 transitions. [2022-07-21 08:58:27,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 89.5) internal successors, (716), 8 states have internal predecessors, (716), 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) [2022-07-21 08:58:27,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-07-21 08:58:27,857 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-07-21 08:58:27,857 INFO L186 Difference]: Start difference. First operand has 128 places, 110 transitions, 247 flow. Second operand 8 states and 716 transitions. [2022-07-21 08:58:27,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 129 transitions, 432 flow [2022-07-21 08:58:27,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 129 transitions, 409 flow, removed 8 selfloop flow, removed 5 redundant places. [2022-07-21 08:58:27,861 INFO L242 Difference]: Finished difference. Result has 129 places, 111 transitions, 264 flow [2022-07-21 08:58:27,861 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=264, PETRI_PLACES=129, PETRI_TRANSITIONS=111} [2022-07-21 08:58:27,861 INFO L279 CegarLoopForPetriNet]: 120 programPoint places, 9 predicate places. [2022-07-21 08:58:27,862 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 111 transitions, 264 flow [2022-07-21 08:58:27,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-07-21 08:58:27,862 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:58:27,862 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:58:27,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 08:58:27,863 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 08:58:27,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:58:27,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1749476871, now seen corresponding path program 3 times [2022-07-21 08:58:27,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:58:27,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906426390] [2022-07-21 08:58:27,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:58:27,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:58:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:58:28,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:58:28,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:58:28,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906426390] [2022-07-21 08:58:28,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906426390] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:58:28,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:58:28,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 08:58:28,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987134489] [2022-07-21 08:58:28,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:58:28,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 08:58:28,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:58:28,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 08:58:28,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 08:58:28,295 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-07-21 08:58:28,295 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 111 transitions, 264 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-07-21 08:58:28,295 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:58:28,296 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-07-21 08:58:28,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:58:28,686 INFO L129 PetriNetUnfolder]: 11/210 cut-off events. [2022-07-21 08:58:28,686 INFO L130 PetriNetUnfolder]: For 93/96 co-relation queries the response was YES. [2022-07-21 08:58:28,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 210 events. 11/210 cut-off events. For 93/96 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 517 event pairs, 3 based on Foata normal form. 1/207 useless extension candidates. Maximal degree in co-relation 353. Up to 41 conditions per place. [2022-07-21 08:58:28,687 INFO L132 encePairwiseOnDemand]: 117/125 looper letters, 47 selfloop transitions, 5 changer transitions 10/131 dead transitions. [2022-07-21 08:58:28,687 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 131 transitions, 467 flow [2022-07-21 08:58:28,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 08:58:28,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-21 08:58:28,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 716 transitions. [2022-07-21 08:58:28,692 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.716 [2022-07-21 08:58:28,692 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 716 transitions. [2022-07-21 08:58:28,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 716 transitions. [2022-07-21 08:58:28,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:58:28,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 716 transitions. [2022-07-21 08:58:28,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 89.5) internal successors, (716), 8 states have internal predecessors, (716), 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) [2022-07-21 08:58:28,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-07-21 08:58:28,696 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-07-21 08:58:28,696 INFO L186 Difference]: Start difference. First operand has 129 places, 111 transitions, 264 flow. Second operand 8 states and 716 transitions. [2022-07-21 08:58:28,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 131 transitions, 467 flow [2022-07-21 08:58:28,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 131 transitions, 441 flow, removed 9 selfloop flow, removed 5 redundant places. [2022-07-21 08:58:28,703 INFO L242 Difference]: Finished difference. Result has 133 places, 111 transitions, 274 flow [2022-07-21 08:58:28,703 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=274, PETRI_PLACES=133, PETRI_TRANSITIONS=111} [2022-07-21 08:58:28,705 INFO L279 CegarLoopForPetriNet]: 120 programPoint places, 13 predicate places. [2022-07-21 08:58:28,705 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 111 transitions, 274 flow [2022-07-21 08:58:28,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-07-21 08:58:28,705 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:58:28,705 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:58:28,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 08:58:28,706 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 08:58:28,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:58:28,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1916399963, now seen corresponding path program 4 times [2022-07-21 08:58:28,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:58:28,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660278490] [2022-07-21 08:58:28,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:58:28,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:58:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:58:29,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:58:29,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:58:29,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660278490] [2022-07-21 08:58:29,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660278490] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:58:29,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:58:29,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 08:58:29,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284505436] [2022-07-21 08:58:29,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:58:29,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 08:58:29,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:58:29,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 08:58:29,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 08:58:29,146 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-07-21 08:58:29,146 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 111 transitions, 274 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-07-21 08:58:29,146 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:58:29,146 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-07-21 08:58:29,147 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:58:29,468 INFO L129 PetriNetUnfolder]: 8/172 cut-off events. [2022-07-21 08:58:29,469 INFO L130 PetriNetUnfolder]: For 131/131 co-relation queries the response was YES. [2022-07-21 08:58:29,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 172 events. 8/172 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 275 event pairs, 4 based on Foata normal form. 1/170 useless extension candidates. Maximal degree in co-relation 300. Up to 35 conditions per place. [2022-07-21 08:58:29,470 INFO L132 encePairwiseOnDemand]: 117/125 looper letters, 37 selfloop transitions, 3 changer transitions 13/122 dead transitions. [2022-07-21 08:58:29,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 122 transitions, 427 flow [2022-07-21 08:58:29,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 08:58:29,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-21 08:58:29,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 709 transitions. [2022-07-21 08:58:29,472 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.709 [2022-07-21 08:58:29,472 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 709 transitions. [2022-07-21 08:58:29,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 709 transitions. [2022-07-21 08:58:29,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:58:29,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 709 transitions. [2022-07-21 08:58:29,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 88.625) internal successors, (709), 8 states have internal predecessors, (709), 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) [2022-07-21 08:58:29,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-07-21 08:58:29,475 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-07-21 08:58:29,477 INFO L186 Difference]: Start difference. First operand has 133 places, 111 transitions, 274 flow. Second operand 8 states and 709 transitions. [2022-07-21 08:58:29,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 122 transitions, 427 flow [2022-07-21 08:58:29,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 122 transitions, 400 flow, removed 9 selfloop flow, removed 7 redundant places. [2022-07-21 08:58:29,483 INFO L242 Difference]: Finished difference. Result has 134 places, 109 transitions, 255 flow [2022-07-21 08:58:29,483 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=255, PETRI_PLACES=134, PETRI_TRANSITIONS=109} [2022-07-21 08:58:29,484 INFO L279 CegarLoopForPetriNet]: 120 programPoint places, 14 predicate places. [2022-07-21 08:58:29,484 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 109 transitions, 255 flow [2022-07-21 08:58:29,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-07-21 08:58:29,484 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:58:29,485 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:58:29,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 08:58:29,485 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 08:58:29,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:58:29,485 INFO L85 PathProgramCache]: Analyzing trace with hash 503976363, now seen corresponding path program 5 times [2022-07-21 08:58:29,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:58:29,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961927469] [2022-07-21 08:58:29,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:58:29,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:58:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:58:30,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:58:30,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:58:30,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961927469] [2022-07-21 08:58:30,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961927469] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:58:30,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:58:30,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 08:58:30,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949933262] [2022-07-21 08:58:30,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:58:30,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 08:58:30,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:58:30,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 08:58:30,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 08:58:30,719 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-07-21 08:58:30,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 109 transitions, 255 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-07-21 08:58:30,719 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:58:30,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-07-21 08:58:30,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:58:31,279 INFO L129 PetriNetUnfolder]: 1/134 cut-off events. [2022-07-21 08:58:31,280 INFO L130 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-07-21 08:58:31,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 134 events. 1/134 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 105 event pairs, 0 based on Foata normal form. 1/135 useless extension candidates. Maximal degree in co-relation 215. Up to 30 conditions per place. [2022-07-21 08:58:31,281 INFO L132 encePairwiseOnDemand]: 117/125 looper letters, 37 selfloop transitions, 3 changer transitions 9/118 dead transitions. [2022-07-21 08:58:31,281 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 118 transitions, 396 flow [2022-07-21 08:58:31,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 08:58:31,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-21 08:58:31,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 706 transitions. [2022-07-21 08:58:31,283 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.706 [2022-07-21 08:58:31,283 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 706 transitions. [2022-07-21 08:58:31,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 706 transitions. [2022-07-21 08:58:31,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:58:31,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 706 transitions. [2022-07-21 08:58:31,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 88.25) internal successors, (706), 8 states have internal predecessors, (706), 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) [2022-07-21 08:58:31,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-07-21 08:58:31,287 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-07-21 08:58:31,287 INFO L186 Difference]: Start difference. First operand has 134 places, 109 transitions, 255 flow. Second operand 8 states and 706 transitions. [2022-07-21 08:58:31,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 118 transitions, 396 flow [2022-07-21 08:58:31,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 118 transitions, 356 flow, removed 10 selfloop flow, removed 11 redundant places. [2022-07-21 08:58:31,289 INFO L242 Difference]: Finished difference. Result has 130 places, 109 transitions, 247 flow [2022-07-21 08:58:31,290 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=247, PETRI_PLACES=130, PETRI_TRANSITIONS=109} [2022-07-21 08:58:31,290 INFO L279 CegarLoopForPetriNet]: 120 programPoint places, 10 predicate places. [2022-07-21 08:58:31,290 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 109 transitions, 247 flow [2022-07-21 08:58:31,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-07-21 08:58:31,291 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:58:31,291 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:58:31,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 08:58:31,292 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-07-21 08:58:31,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:58:31,292 INFO L85 PathProgramCache]: Analyzing trace with hash 2126505447, now seen corresponding path program 6 times [2022-07-21 08:58:31,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:58:31,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837980065] [2022-07-21 08:58:31,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:58:31,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:58:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:58:31,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:58:31,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:58:31,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837980065] [2022-07-21 08:58:31,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837980065] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:58:31,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:58:31,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 08:58:31,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990726887] [2022-07-21 08:58:31,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:58:31,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 08:58:31,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:58:31,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 08:58:31,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 08:58:31,610 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 125 [2022-07-21 08:58:31,610 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 109 transitions, 247 flow. Second operand has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-07-21 08:58:31,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:58:31,611 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 125 [2022-07-21 08:58:31,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:58:31,861 INFO L129 PetriNetUnfolder]: 1/113 cut-off events. [2022-07-21 08:58:31,861 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-07-21 08:58:31,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 113 events. 1/113 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 41 event pairs, 1 based on Foata normal form. 1/113 useless extension candidates. Maximal degree in co-relation 175. Up to 32 conditions per place. [2022-07-21 08:58:31,861 INFO L132 encePairwiseOnDemand]: 117/125 looper letters, 0 selfloop transitions, 0 changer transitions 107/107 dead transitions. [2022-07-21 08:58:31,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 107 transitions, 325 flow [2022-07-21 08:58:31,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 08:58:31,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-07-21 08:58:31,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 697 transitions. [2022-07-21 08:58:31,863 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.697 [2022-07-21 08:58:31,863 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 697 transitions. [2022-07-21 08:58:31,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 697 transitions. [2022-07-21 08:58:31,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:58:31,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 697 transitions. [2022-07-21 08:58:31,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 87.125) internal successors, (697), 8 states have internal predecessors, (697), 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) [2022-07-21 08:58:31,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-07-21 08:58:31,866 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 125.0) internal successors, (1125), 9 states have internal predecessors, (1125), 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) [2022-07-21 08:58:31,866 INFO L186 Difference]: Start difference. First operand has 130 places, 109 transitions, 247 flow. Second operand 8 states and 697 transitions. [2022-07-21 08:58:31,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 107 transitions, 325 flow [2022-07-21 08:58:31,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 107 transitions, 313 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-07-21 08:58:31,868 INFO L242 Difference]: Finished difference. Result has 125 places, 0 transitions, 0 flow [2022-07-21 08:58:31,868 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=125, PETRI_TRANSITIONS=0} [2022-07-21 08:58:31,868 INFO L279 CegarLoopForPetriNet]: 120 programPoint places, 5 predicate places. [2022-07-21 08:58:31,869 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 0 transitions, 0 flow [2022-07-21 08:58:31,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 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) [2022-07-21 08:58:31,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-07-21 08:58:31,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-07-21 08:58:31,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-07-21 08:58:31,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-07-21 08:58:31,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 08:58:31,872 INFO L356 BasicCegarLoop]: Path program histogram: [6] [2022-07-21 08:58:31,874 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-21 08:58:31,874 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 08:58:31,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:58:31 BasicIcfg [2022-07-21 08:58:31,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 08:58:31,878 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 08:58:31,878 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 08:58:31,878 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 08:58:31,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:58:24" (3/4) ... [2022-07-21 08:58:31,884 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 08:58:31,888 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-07-21 08:58:31,888 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-07-21 08:58:31,888 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-07-21 08:58:31,892 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-07-21 08:58:31,892 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-21 08:58:31,892 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-21 08:58:31,892 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 08:58:31,929 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 08:58:31,929 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 08:58:31,930 INFO L158 Benchmark]: Toolchain (without parser) took 8312.86ms. Allocated memory was 54.5MB in the beginning and 285.2MB in the end (delta: 230.7MB). Free memory was 33.3MB in the beginning and 241.1MB in the end (delta: -207.8MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2022-07-21 08:58:31,930 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory was 35.7MB in the beginning and 35.7MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 08:58:31,930 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.36ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 33.1MB in the beginning and 54.0MB in the end (delta: -21.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 08:58:31,931 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.67ms. Allocated memory is still 71.3MB. Free memory was 54.0MB in the beginning and 50.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 08:58:31,931 INFO L158 Benchmark]: Boogie Preprocessor took 41.20ms. Allocated memory is still 71.3MB. Free memory was 50.9MB in the beginning and 49.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 08:58:31,931 INFO L158 Benchmark]: RCFGBuilder took 993.61ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 49.0MB in the beginning and 45.3MB in the end (delta: 3.6MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2022-07-21 08:58:31,931 INFO L158 Benchmark]: TraceAbstraction took 6943.34ms. Allocated memory was 88.1MB in the beginning and 285.2MB in the end (delta: 197.1MB). Free memory was 44.9MB in the beginning and 244.2MB in the end (delta: -199.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 08:58:31,932 INFO L158 Benchmark]: Witness Printer took 51.24ms. Allocated memory is still 285.2MB. Free memory was 244.2MB in the beginning and 241.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 08:58:31,933 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 54.5MB. Free memory was 35.7MB in the beginning and 35.7MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.36ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 33.1MB in the beginning and 54.0MB in the end (delta: -21.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.67ms. Allocated memory is still 71.3MB. Free memory was 54.0MB in the beginning and 50.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.20ms. Allocated memory is still 71.3MB. Free memory was 50.9MB in the beginning and 49.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 993.61ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 49.0MB in the beginning and 45.3MB in the end (delta: 3.6MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6943.34ms. Allocated memory was 88.1MB in the beginning and 285.2MB in the end (delta: 197.1MB). Free memory was 44.9MB in the beginning and 244.2MB in the end (delta: -199.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 51.24ms. Allocated memory is still 285.2MB. Free memory was 244.2MB in the beginning and 241.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 100]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 140 locations, 4 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: 6.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 150 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 150 mSDsluCounter, 822 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 886 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 744 IncrementalHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 188 mSDtfsCounter, 744 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=3, InterpolantAutomatonStates: 50, 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, 0.9s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 654 NumberOfCodeBlocks, 654 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 648 ConstructedInterpolants, 0 QuantifiedInterpolants, 4802 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-21 08:58:31,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE