/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-OGIterative.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 01:32:43,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 01:32:43,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 01:32:43,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 01:32:43,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 01:32:43,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 01:32:43,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 01:32:43,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 01:32:43,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 01:32:43,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 01:32:43,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 01:32:43,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 01:32:43,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 01:32:43,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 01:32:43,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 01:32:43,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 01:32:43,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 01:32:43,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 01:32:43,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 01:32:43,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 01:32:43,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 01:32:43,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 01:32:43,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 01:32:43,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 01:32:43,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 01:32:43,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-13 01:32:43,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-13 01:32:43,950 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-13 01:32:43,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-13 01:32:43,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-13 01:32:43,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-13 01:32:43,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-13 01:32:43,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-13 01:32:43,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 01:32:43,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 01:32:43,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 01:32:43,954 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-OGIterative.epf [2021-08-13 01:32:43,976 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 01:32:43,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 01:32:43,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 01:32:43,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 01:32:43,978 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 01:32:43,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 01:32:43,979 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 01:32:43,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 01:32:43,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 01:32:43,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 01:32:43,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 01:32:43,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 01:32:43,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 01:32:43,980 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 01:32:43,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 01:32:43,980 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 01:32:43,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 01:32:43,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 01:32:43,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 01:32:43,981 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 01:32:43,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 01:32:43,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 01:32:43,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 01:32:43,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 01:32:43,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 01:32:43,982 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 01:32:43,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 01:32:43,982 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 01:32:43,982 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 01:32:43,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 01:32:43,982 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 01:32:43,982 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 01:32:44,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 01:32:44,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 01:32:44,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 01:32:44,275 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-13 01:32:44,276 INFO L275 PluginConnector]: CDTParser initialized [2021-08-13 01:32:44,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2021-08-13 01:32:44,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba02e66fd/6c1e8737857b4c059db970844f2e3a63/FLAG49000be18 [2021-08-13 01:32:44,681 INFO L306 CDTParser]: Found 1 translation units. [2021-08-13 01:32:44,681 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2021-08-13 01:32:44,694 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba02e66fd/6c1e8737857b4c059db970844f2e3a63/FLAG49000be18 [2021-08-13 01:32:45,054 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba02e66fd/6c1e8737857b4c059db970844f2e3a63 [2021-08-13 01:32:45,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 01:32:45,058 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-13 01:32:45,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-13 01:32:45,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-13 01:32:45,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-13 01:32:45,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 01:32:45" (1/1) ... [2021-08-13 01:32:45,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f229af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:32:45, skipping insertion in model container [2021-08-13 01:32:45,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.08 01:32:45" (1/1) ... [2021-08-13 01:32:45,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-13 01:32:45,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-13 01:32:45,199 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i[950,963] [2021-08-13 01:32:45,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 01:32:45,342 INFO L203 MainTranslator]: Completed pre-run [2021-08-13 01:32:45,351 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i[950,963] [2021-08-13 01:32:45,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-13 01:32:45,431 INFO L208 MainTranslator]: Completed translation [2021-08-13 01:32:45,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:32:45 WrapperNode [2021-08-13 01:32:45,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-13 01:32:45,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 01:32:45,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 01:32:45,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 01:32:45,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:32:45" (1/1) ... [2021-08-13 01:32:45,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:32:45" (1/1) ... [2021-08-13 01:32:45,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 01:32:45,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 01:32:45,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 01:32:45,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 01:32:45,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:32:45" (1/1) ... [2021-08-13 01:32:45,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:32:45" (1/1) ... [2021-08-13 01:32:45,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:32:45" (1/1) ... [2021-08-13 01:32:45,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:32:45" (1/1) ... [2021-08-13 01:32:45,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:32:45" (1/1) ... [2021-08-13 01:32:45,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:32:45" (1/1) ... [2021-08-13 01:32:45,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:32:45" (1/1) ... [2021-08-13 01:32:45,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 01:32:45,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 01:32:45,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 01:32:45,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 01:32:45,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:32:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 01:32:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-13 01:32:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-13 01:32:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-13 01:32:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-13 01:32:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-13 01:32:45,523 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-13 01:32:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-13 01:32:45,523 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-13 01:32:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-13 01:32:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-13 01:32:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 01:32:45,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 01:32:45,524 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 01:32:45,843 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 01:32:45,843 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-13 01:32:45,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 01:32:45 BoogieIcfgContainer [2021-08-13 01:32:45,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 01:32:45,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 01:32:45,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 01:32:45,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 01:32:45,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.08 01:32:45" (1/3) ... [2021-08-13 01:32:45,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b9fe94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 01:32:45, skipping insertion in model container [2021-08-13 01:32:45,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.08 01:32:45" (2/3) ... [2021-08-13 01:32:45,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b9fe94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 01:32:45, skipping insertion in model container [2021-08-13 01:32:45,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 01:32:45" (3/3) ... [2021-08-13 01:32:45,850 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.oepc.i [2021-08-13 01:32:45,853 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 01:32:45,854 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 01:32:45,854 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 01:32:45,872 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,873 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,873 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,873 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,873 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,875 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,875 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,875 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,875 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,876 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,876 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,879 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,879 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,880 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,880 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,883 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,883 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,884 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,884 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-13 01:32:45,886 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-13 01:32:45,901 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-13 01:32:45,914 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 01:32:45,914 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 01:32:45,915 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 01:32:45,915 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 01:32:45,915 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 01:32:45,915 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 01:32:45,915 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 01:32:45,915 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 01:32:45,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 66 transitions, 142 flow [2021-08-13 01:32:45,942 INFO L129 PetriNetUnfolder]: 2/64 cut-off events. [2021-08-13 01:32:45,942 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:32:45,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 64 events. 2/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 31 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2021-08-13 01:32:45,945 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 66 transitions, 142 flow [2021-08-13 01:32:45,947 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 54 transitions, 114 flow [2021-08-13 01:32:45,963 INFO L129 PetriNetUnfolder]: 1/53 cut-off events. [2021-08-13 01:32:45,963 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:32:45,963 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:32:45,964 INFO L266 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] [2021-08-13 01:32:45,964 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:32:45,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:32:45,968 INFO L82 PathProgramCache]: Analyzing trace with hash 311474389, now seen corresponding path program 1 times [2021-08-13 01:32:45,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:32:45,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062317713] [2021-08-13 01:32:45,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:32:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:32:46,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:32:46,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:32:46,155 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:32:46,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:32:46,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:32:46,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:32:46,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:32:46,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:32:46,189 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:32:46,189 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062317713] [2021-08-13 01:32:46,189 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062317713] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:32:46,189 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:32:46,189 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 01:32:46,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88002527] [2021-08-13 01:32:46,195 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 01:32:46,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:32:46,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 01:32:46,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 01:32:46,207 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 66 [2021-08-13 01:32:46,209 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 54 transitions, 114 flow. Second operand has 6 states, 6 states have (on average 54.166666666666664) internal successors, (325), 6 states have internal predecessors, (325), 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) [2021-08-13 01:32:46,209 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:32:46,210 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 66 [2021-08-13 01:32:46,210 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:32:46,337 INFO L129 PetriNetUnfolder]: 24/131 cut-off events. [2021-08-13 01:32:46,337 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:32:46,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 131 events. 24/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 429 event pairs, 5 based on Foata normal form. 6/134 useless extension candidates. Maximal degree in co-relation 171. Up to 31 conditions per place. [2021-08-13 01:32:46,341 INFO L132 encePairwiseOnDemand]: 58/66 looper letters, 8 selfloop transitions, 3 changer transitions 19/74 dead transitions. [2021-08-13 01:32:46,341 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 74 transitions, 214 flow [2021-08-13 01:32:46,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-13 01:32:46,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-08-13 01:32:46,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 511 transitions. [2021-08-13 01:32:46,355 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8602693602693603 [2021-08-13 01:32:46,356 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 511 transitions. [2021-08-13 01:32:46,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 511 transitions. [2021-08-13 01:32:46,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:32:46,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 511 transitions. [2021-08-13 01:32:46,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 56.77777777777778) internal successors, (511), 9 states have internal predecessors, (511), 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) [2021-08-13 01:32:46,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 66.0) internal successors, (660), 10 states have internal predecessors, (660), 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) [2021-08-13 01:32:46,375 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 66.0) internal successors, (660), 10 states have internal predecessors, (660), 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) [2021-08-13 01:32:46,376 INFO L348 CegarLoopForPetriNet]: 60 programPoint places, 8 predicate places. [2021-08-13 01:32:46,380 INFO L482 AbstractCegarLoop]: Abstraction has has 68 places, 74 transitions, 214 flow [2021-08-13 01:32:46,380 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 54.166666666666664) internal successors, (325), 6 states have internal predecessors, (325), 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) [2021-08-13 01:32:46,380 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:32:46,380 INFO L266 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] [2021-08-13 01:32:46,381 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 01:32:46,381 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:32:46,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:32:46,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1848707242, now seen corresponding path program 1 times [2021-08-13 01:32:46,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:32:46,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749848972] [2021-08-13 01:32:46,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:32:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:32:46,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:32:46,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:32:46,471 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 01:32:46,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 01:32:46,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 01:32:46,495 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 01:32:46,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:32:46,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:32:46,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:32:46,520 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:32:46,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749848972] [2021-08-13 01:32:46,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749848972] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:32:46,520 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:32:46,520 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 01:32:46,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243799989] [2021-08-13 01:32:46,521 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 01:32:46,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:32:46,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 01:32:46,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 01:32:46,523 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 66 [2021-08-13 01:32:46,523 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 74 transitions, 214 flow. Second operand has 6 states, 6 states have (on average 54.166666666666664) internal successors, (325), 6 states have internal predecessors, (325), 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) [2021-08-13 01:32:46,523 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:32:46,523 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 66 [2021-08-13 01:32:46,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:32:46,678 INFO L129 PetriNetUnfolder]: 46/189 cut-off events. [2021-08-13 01:32:46,678 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-13 01:32:46,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 189 events. 46/189 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 826 event pairs, 5 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 298. Up to 41 conditions per place. [2021-08-13 01:32:46,680 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 13 selfloop transitions, 12 changer transitions 8/78 dead transitions. [2021-08-13 01:32:46,680 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 78 transitions, 250 flow [2021-08-13 01:32:46,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-13 01:32:46,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-08-13 01:32:46,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 565 transitions. [2021-08-13 01:32:46,681 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8560606060606061 [2021-08-13 01:32:46,681 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 565 transitions. [2021-08-13 01:32:46,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 565 transitions. [2021-08-13 01:32:46,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:32:46,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 565 transitions. [2021-08-13 01:32:46,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 56.5) internal successors, (565), 10 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 01:32:46,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 66.0) internal successors, (726), 11 states have internal predecessors, (726), 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) [2021-08-13 01:32:46,684 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 66.0) internal successors, (726), 11 states have internal predecessors, (726), 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) [2021-08-13 01:32:46,684 INFO L348 CegarLoopForPetriNet]: 60 programPoint places, 11 predicate places. [2021-08-13 01:32:46,684 INFO L482 AbstractCegarLoop]: Abstraction has has 71 places, 78 transitions, 250 flow [2021-08-13 01:32:46,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 54.166666666666664) internal successors, (325), 6 states have internal predecessors, (325), 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) [2021-08-13 01:32:46,685 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:32:46,685 INFO L266 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] [2021-08-13 01:32:46,685 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 01:32:46,685 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:32:46,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:32:46,685 INFO L82 PathProgramCache]: Analyzing trace with hash 718116661, now seen corresponding path program 1 times [2021-08-13 01:32:46,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:32:46,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926770082] [2021-08-13 01:32:46,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:32:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:32:46,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:32:46,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:32:46,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:32:46,725 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-08-13 01:32:46,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-08-13 01:32:46,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 01:32:46,743 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-08-13 01:32:46,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:32:46,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:32:46,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:32:46,751 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:32:46,751 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926770082] [2021-08-13 01:32:46,751 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926770082] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:32:46,751 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:32:46,752 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:32:46,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308967275] [2021-08-13 01:32:46,752 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:32:46,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:32:46,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:32:46,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:32:46,753 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 66 [2021-08-13 01:32:46,754 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 78 transitions, 250 flow. Second operand has 7 states, 7 states have (on average 54.142857142857146) internal successors, (379), 7 states have internal predecessors, (379), 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) [2021-08-13 01:32:46,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:32:46,754 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 66 [2021-08-13 01:32:46,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:32:46,916 INFO L129 PetriNetUnfolder]: 32/155 cut-off events. [2021-08-13 01:32:46,916 INFO L130 PetriNetUnfolder]: For 11/27 co-relation queries the response was YES. [2021-08-13 01:32:46,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 155 events. 32/155 cut-off events. For 11/27 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 647 event pairs, 0 based on Foata normal form. 8/157 useless extension candidates. Maximal degree in co-relation 318. Up to 29 conditions per place. [2021-08-13 01:32:46,917 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 12 selfloop transitions, 15 changer transitions 23/95 dead transitions. [2021-08-13 01:32:46,917 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 95 transitions, 418 flow [2021-08-13 01:32:46,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-13 01:32:46,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-08-13 01:32:46,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 725 transitions. [2021-08-13 01:32:46,919 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.844988344988345 [2021-08-13 01:32:46,919 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 725 transitions. [2021-08-13 01:32:46,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 725 transitions. [2021-08-13 01:32:46,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:32:46,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 725 transitions. [2021-08-13 01:32:46,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 55.76923076923077) internal successors, (725), 13 states have internal predecessors, (725), 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) [2021-08-13 01:32:46,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 66.0) internal successors, (924), 14 states have internal predecessors, (924), 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) [2021-08-13 01:32:46,922 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 66.0) internal successors, (924), 14 states have internal predecessors, (924), 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) [2021-08-13 01:32:46,922 INFO L348 CegarLoopForPetriNet]: 60 programPoint places, 23 predicate places. [2021-08-13 01:32:46,923 INFO L482 AbstractCegarLoop]: Abstraction has has 83 places, 95 transitions, 418 flow [2021-08-13 01:32:46,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 54.142857142857146) internal successors, (379), 7 states have internal predecessors, (379), 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) [2021-08-13 01:32:46,923 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:32:46,923 INFO L266 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] [2021-08-13 01:32:46,923 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 01:32:46,923 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:32:46,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:32:46,923 INFO L82 PathProgramCache]: Analyzing trace with hash -1872334383, now seen corresponding path program 1 times [2021-08-13 01:32:46,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:32:46,924 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133638103] [2021-08-13 01:32:46,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:32:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:32:46,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:32:46,964 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-08-13 01:32:46,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:32:46,969 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:32:46,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:32:46,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:32:46,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:32:46,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:46,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:32:47,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:32:47,001 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:32:47,001 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133638103] [2021-08-13 01:32:47,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133638103] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:32:47,004 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:32:47,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-13 01:32:47,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260493425] [2021-08-13 01:32:47,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-13 01:32:47,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:32:47,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-13 01:32:47,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-13 01:32:47,007 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 66 [2021-08-13 01:32:47,008 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 95 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 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) [2021-08-13 01:32:47,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:32:47,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 66 [2021-08-13 01:32:47,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:32:47,098 INFO L129 PetriNetUnfolder]: 59/246 cut-off events. [2021-08-13 01:32:47,098 INFO L130 PetriNetUnfolder]: For 28/43 co-relation queries the response was YES. [2021-08-13 01:32:47,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 601 conditions, 246 events. 59/246 cut-off events. For 28/43 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1364 event pairs, 0 based on Foata normal form. 3/233 useless extension candidates. Maximal degree in co-relation 563. Up to 53 conditions per place. [2021-08-13 01:32:47,101 INFO L132 encePairwiseOnDemand]: 58/66 looper letters, 9 selfloop transitions, 5 changer transitions 27/100 dead transitions. [2021-08-13 01:32:47,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 100 transitions, 472 flow [2021-08-13 01:32:47,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-13 01:32:47,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-08-13 01:32:47,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 324 transitions. [2021-08-13 01:32:47,102 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2021-08-13 01:32:47,102 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 324 transitions. [2021-08-13 01:32:47,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 324 transitions. [2021-08-13 01:32:47,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:32:47,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 324 transitions. [2021-08-13 01:32:47,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 54.0) internal successors, (324), 6 states have internal predecessors, (324), 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) [2021-08-13 01:32:47,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 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) [2021-08-13 01:32:47,103 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 66.0) internal successors, (462), 7 states have internal predecessors, (462), 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) [2021-08-13 01:32:47,103 INFO L348 CegarLoopForPetriNet]: 60 programPoint places, 28 predicate places. [2021-08-13 01:32:47,103 INFO L482 AbstractCegarLoop]: Abstraction has has 88 places, 100 transitions, 472 flow [2021-08-13 01:32:47,104 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 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) [2021-08-13 01:32:47,104 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:32:47,104 INFO L266 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] [2021-08-13 01:32:47,104 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 01:32:47,104 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:32:47,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:32:47,105 INFO L82 PathProgramCache]: Analyzing trace with hash 145390549, now seen corresponding path program 2 times [2021-08-13 01:32:47,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:32:47,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596970999] [2021-08-13 01:32:47,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:32:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:32:47,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:47,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:32:47,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:47,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:32:47,175 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-08-13 01:32:47,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:32:47,181 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:32:47,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:32:47,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:47,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:32:47,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:47,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:32:47,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:47,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:32:47,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:32:47,206 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:32:47,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596970999] [2021-08-13 01:32:47,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596970999] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:32:47,207 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:32:47,207 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:32:47,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055670235] [2021-08-13 01:32:47,207 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:32:47,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:32:47,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:32:47,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:32:47,208 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 66 [2021-08-13 01:32:47,208 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 100 transitions, 472 flow. Second operand has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 7 states have internal predecessors, (368), 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) [2021-08-13 01:32:47,208 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:32:47,208 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 66 [2021-08-13 01:32:47,209 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:32:47,276 INFO L129 PetriNetUnfolder]: 81/311 cut-off events. [2021-08-13 01:32:47,276 INFO L130 PetriNetUnfolder]: For 53/75 co-relation queries the response was YES. [2021-08-13 01:32:47,284 INFO L84 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 311 events. 81/311 cut-off events. For 53/75 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1915 event pairs, 0 based on Foata normal form. 3/293 useless extension candidates. Maximal degree in co-relation 759. Up to 73 conditions per place. [2021-08-13 01:32:47,285 INFO L132 encePairwiseOnDemand]: 59/66 looper letters, 8 selfloop transitions, 3 changer transitions 50/104 dead transitions. [2021-08-13 01:32:47,285 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 104 transitions, 540 flow [2021-08-13 01:32:47,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 01:32:47,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 01:32:47,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 376 transitions. [2021-08-13 01:32:47,286 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8138528138528138 [2021-08-13 01:32:47,286 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 376 transitions. [2021-08-13 01:32:47,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 376 transitions. [2021-08-13 01:32:47,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:32:47,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 376 transitions. [2021-08-13 01:32:47,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 53.714285714285715) internal successors, (376), 7 states have internal predecessors, (376), 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) [2021-08-13 01:32:47,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 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) [2021-08-13 01:32:47,288 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 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) [2021-08-13 01:32:47,288 INFO L348 CegarLoopForPetriNet]: 60 programPoint places, 34 predicate places. [2021-08-13 01:32:47,288 INFO L482 AbstractCegarLoop]: Abstraction has has 94 places, 104 transitions, 540 flow [2021-08-13 01:32:47,288 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 52.57142857142857) internal successors, (368), 7 states have internal predecessors, (368), 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) [2021-08-13 01:32:47,289 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 01:32:47,289 INFO L266 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] [2021-08-13 01:32:47,289 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 01:32:47,289 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-13 01:32:47,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 01:32:47,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1970675669, now seen corresponding path program 3 times [2021-08-13 01:32:47,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 01:32:47,289 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537076274] [2021-08-13 01:32:47,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 01:32:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 01:32:47,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:47,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:32:47,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:47,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:32:47,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:47,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 01:32:47,319 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-08-13 01:32:47,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-08-13 01:32:47,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:47,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:32:47,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:47,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-08-13 01:32:47,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 01:32:47,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 01:32:47,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 01:32:47,349 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 01:32:47,350 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537076274] [2021-08-13 01:32:47,350 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537076274] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 01:32:47,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 01:32:47,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-13 01:32:47,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636668737] [2021-08-13 01:32:47,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-13 01:32:47,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 01:32:47,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-13 01:32:47,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-13 01:32:47,351 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 66 [2021-08-13 01:32:47,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 104 transitions, 540 flow. Second operand has 7 states, 7 states have (on average 53.42857142857143) internal successors, (374), 7 states have internal predecessors, (374), 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) [2021-08-13 01:32:47,352 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 01:32:47,352 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 66 [2021-08-13 01:32:47,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 01:32:47,419 INFO L129 PetriNetUnfolder]: 108/400 cut-off events. [2021-08-13 01:32:47,420 INFO L130 PetriNetUnfolder]: For 86/108 co-relation queries the response was YES. [2021-08-13 01:32:47,421 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1062 conditions, 400 events. 108/400 cut-off events. For 86/108 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2768 event pairs, 0 based on Foata normal form. 1/371 useless extension candidates. Maximal degree in co-relation 1016. Up to 97 conditions per place. [2021-08-13 01:32:47,421 INFO L132 encePairwiseOnDemand]: 60/66 looper letters, 0 selfloop transitions, 0 changer transitions 107/107 dead transitions. [2021-08-13 01:32:47,421 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 107 transitions, 614 flow [2021-08-13 01:32:47,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-13 01:32:47,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-08-13 01:32:47,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 379 transitions. [2021-08-13 01:32:47,422 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.8203463203463204 [2021-08-13 01:32:47,422 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 379 transitions. [2021-08-13 01:32:47,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 379 transitions. [2021-08-13 01:32:47,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 01:32:47,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 379 transitions. [2021-08-13 01:32:47,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 54.142857142857146) internal successors, (379), 7 states have internal predecessors, (379), 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) [2021-08-13 01:32:47,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 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) [2021-08-13 01:32:47,424 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 66.0) internal successors, (528), 8 states have internal predecessors, (528), 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) [2021-08-13 01:32:47,424 INFO L348 CegarLoopForPetriNet]: 60 programPoint places, 38 predicate places. [2021-08-13 01:32:47,424 INFO L482 AbstractCegarLoop]: Abstraction has has 98 places, 107 transitions, 614 flow [2021-08-13 01:32:47,424 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 53.42857142857143) internal successors, (374), 7 states have internal predecessors, (374), 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) [2021-08-13 01:32:47,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown