/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf -i ../../../trunk/examples/svcomp/pthread-lit/sssc12.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 05:13:02,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 05:13:02,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 05:13:02,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 05:13:02,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 05:13:02,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 05:13:02,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 05:13:02,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 05:13:02,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 05:13:02,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 05:13:02,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 05:13:02,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 05:13:02,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 05:13:02,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 05:13:02,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 05:13:02,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 05:13:02,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 05:13:02,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 05:13:02,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 05:13:02,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 05:13:02,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 05:13:02,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 05:13:02,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 05:13:02,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 05:13:02,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 05:13:02,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 05:13:02,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 05:13:02,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 05:13:02,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 05:13:02,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 05:13:02,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 05:13:02,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 05:13:02,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 05:13:02,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 05:13:02,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 05:13:02,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 05:13:02,996 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-SemanticLbe-SemanticLooper.epf [2020-10-16 05:13:03,038 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 05:13:03,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 05:13:03,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 05:13:03,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 05:13:03,040 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 05:13:03,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 05:13:03,040 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 05:13:03,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 05:13:03,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 05:13:03,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 05:13:03,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 05:13:03,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 05:13:03,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 05:13:03,042 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 05:13:03,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 05:13:03,043 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 05:13:03,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 05:13:03,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 05:13:03,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 05:13:03,044 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 05:13:03,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 05:13:03,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 05:13:03,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 05:13:03,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 05:13:03,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 05:13:03,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 05:13:03,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 05:13:03,045 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 05:13:03,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 05:13:03,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 05:13:03,362 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 05:13:03,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 05:13:03,368 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 05:13:03,368 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 05:13:03,369 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/sssc12.i [2020-10-16 05:13:03,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2155fd6d/8fb48e087fa84d45ac5786f06bb93ad1/FLAGa268f9ea9 [2020-10-16 05:13:03,910 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 05:13:03,911 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/sssc12.i [2020-10-16 05:13:03,947 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2155fd6d/8fb48e087fa84d45ac5786f06bb93ad1/FLAGa268f9ea9 [2020-10-16 05:13:04,242 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2155fd6d/8fb48e087fa84d45ac5786f06bb93ad1 [2020-10-16 05:13:04,251 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 05:13:04,253 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 05:13:04,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 05:13:04,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 05:13:04,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 05:13:04,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:13:04" (1/1) ... [2020-10-16 05:13:04,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1405852b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:13:04, skipping insertion in model container [2020-10-16 05:13:04,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:13:04" (1/1) ... [2020-10-16 05:13:04,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 05:13:04,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 05:13:04,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:13:04,980 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 05:13:05,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:13:05,176 INFO L208 MainTranslator]: Completed translation [2020-10-16 05:13:05,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:13:05 WrapperNode [2020-10-16 05:13:05,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 05:13:05,178 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 05:13:05,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 05:13:05,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 05:13:05,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:13:05" (1/1) ... [2020-10-16 05:13:05,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:13:05" (1/1) ... [2020-10-16 05:13:05,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 05:13:05,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 05:13:05,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 05:13:05,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 05:13:05,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:13:05" (1/1) ... [2020-10-16 05:13:05,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:13:05" (1/1) ... [2020-10-16 05:13:05,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:13:05" (1/1) ... [2020-10-16 05:13:05,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:13:05" (1/1) ... [2020-10-16 05:13:05,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:13:05" (1/1) ... [2020-10-16 05:13:05,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:13:05" (1/1) ... [2020-10-16 05:13:05,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:13:05" (1/1) ... [2020-10-16 05:13:05,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 05:13:05,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 05:13:05,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 05:13:05,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 05:13:05,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:13:05" (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 [2020-10-16 05:13:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 05:13:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2020-10-16 05:13:05,322 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2020-10-16 05:13:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 05:13:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 05:13:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 05:13:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 05:13:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-16 05:13:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 05:13:05,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 05:13:05,331 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 05:13:05,757 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 05:13:05,758 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-16 05:13:05,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:13:05 BoogieIcfgContainer [2020-10-16 05:13:05,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 05:13:05,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 05:13:05,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 05:13:05,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 05:13:05,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:13:04" (1/3) ... [2020-10-16 05:13:05,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2800c626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:13:05, skipping insertion in model container [2020-10-16 05:13:05,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:13:05" (2/3) ... [2020-10-16 05:13:05,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2800c626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:13:05, skipping insertion in model container [2020-10-16 05:13:05,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:13:05" (3/3) ... [2020-10-16 05:13:05,770 INFO L111 eAbstractionObserver]: Analyzing ICFG sssc12.i [2020-10-16 05:13:05,783 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 05:13:05,793 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 05:13:05,794 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 05:13:05,820 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,820 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,821 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,821 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,821 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,822 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,822 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,822 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,823 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,823 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,823 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,824 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,824 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,824 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,825 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,825 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,825 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,825 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,826 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,826 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,826 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,827 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,827 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,827 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,828 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,828 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,828 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,828 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,829 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,829 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,829 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,833 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,834 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,834 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,834 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,835 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,835 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,835 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,835 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,836 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,836 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:05,857 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 05:13:05,880 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:13:05,880 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:13:05,880 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:13:05,881 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:13:05,881 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:13:05,881 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:13:05,881 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:13:05,881 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:13:05,896 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 58 places, 61 transitions, 127 flow [2020-10-16 05:13:05,937 INFO L129 PetriNetUnfolder]: 7/70 cut-off events. [2020-10-16 05:13:05,938 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:13:05,943 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 7/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 36. Up to 4 conditions per place. [2020-10-16 05:13:05,943 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 61 transitions, 127 flow [2020-10-16 05:13:05,949 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 61 transitions, 127 flow [2020-10-16 05:13:05,952 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:13:05,955 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 61 transitions, 127 flow [2020-10-16 05:13:05,958 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 61 transitions, 127 flow [2020-10-16 05:13:05,959 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 58 places, 61 transitions, 127 flow [2020-10-16 05:13:05,978 INFO L129 PetriNetUnfolder]: 7/70 cut-off events. [2020-10-16 05:13:05,978 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:13:05,979 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 7/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 36. Up to 4 conditions per place. [2020-10-16 05:13:05,981 INFO L117 LiptonReduction]: Number of co-enabled transitions 572 [2020-10-16 05:13:07,230 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2020-10-16 05:13:07,510 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-10-16 05:13:07,692 INFO L132 LiptonReduction]: Checked pairs total: 476 [2020-10-16 05:13:07,693 INFO L134 LiptonReduction]: Total number of compositions: 68 [2020-10-16 05:13:07,696 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1746 [2020-10-16 05:13:07,702 INFO L129 PetriNetUnfolder]: 1/7 cut-off events. [2020-10-16 05:13:07,702 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:13:07,702 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:07,703 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 05:13:07,703 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:07,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:07,709 INFO L82 PathProgramCache]: Analyzing trace with hash 296784782, now seen corresponding path program 1 times [2020-10-16 05:13:07,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:07,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061298237] [2020-10-16 05:13:07,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:07,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:07,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061298237] [2020-10-16 05:13:07,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:07,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:13:07,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964824379] [2020-10-16 05:13:07,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:13:07,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:07,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:13:07,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:13:07,980 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 129 [2020-10-16 05:13:07,982 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 10 transitions, 25 flow. Second operand 4 states. [2020-10-16 05:13:07,983 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:07,983 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 129 [2020-10-16 05:13:07,985 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:08,016 INFO L129 PetriNetUnfolder]: 1/12 cut-off events. [2020-10-16 05:13:08,016 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 05:13:08,017 INFO L80 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 12 events. 1/12 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 7/16 useless extension candidates. Maximal degree in co-relation 14. Up to 5 conditions per place. [2020-10-16 05:13:08,018 INFO L132 encePairwiseOnDemand]: 124/129 looper letters, 5 selfloop transitions, 3 changer transitions 0/11 dead transitions. [2020-10-16 05:13:08,018 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 11 transitions, 43 flow [2020-10-16 05:13:08,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:13:08,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:13:08,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 216 transitions. [2020-10-16 05:13:08,036 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.4186046511627907 [2020-10-16 05:13:08,037 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 216 transitions. [2020-10-16 05:13:08,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 216 transitions. [2020-10-16 05:13:08,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:08,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 216 transitions. [2020-10-16 05:13:08,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:13:08,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:13:08,053 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:13:08,055 INFO L185 Difference]: Start difference. First operand has 12 places, 10 transitions, 25 flow. Second operand 4 states and 216 transitions. [2020-10-16 05:13:08,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 11 transitions, 43 flow [2020-10-16 05:13:08,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 11 transitions, 43 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 05:13:08,060 INFO L241 Difference]: Finished difference. Result has 15 places, 10 transitions, 37 flow [2020-10-16 05:13:08,063 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=37, PETRI_PLACES=15, PETRI_TRANSITIONS=10} [2020-10-16 05:13:08,064 INFO L342 CegarLoopForPetriNet]: 12 programPoint places, 3 predicate places. [2020-10-16 05:13:08,064 INFO L481 AbstractCegarLoop]: Abstraction has has 15 places, 10 transitions, 37 flow [2020-10-16 05:13:08,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:13:08,064 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:08,065 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2020-10-16 05:13:08,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 05:13:08,065 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:08,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:08,066 INFO L82 PathProgramCache]: Analyzing trace with hash 610260750, now seen corresponding path program 1 times [2020-10-16 05:13:08,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:08,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007134559] [2020-10-16 05:13:08,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:13:08,086 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:13:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:13:08,098 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:13:08,123 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 05:13:08,123 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 05:13:08,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 05:13:08,124 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 05:13:08,126 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 05:13:08,126 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-16 05:13:08,133 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,133 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,133 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,133 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,134 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,134 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,134 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,134 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,134 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,134 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,135 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,135 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,135 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,135 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,135 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,136 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,136 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,136 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,136 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,136 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,136 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,137 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,137 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,137 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,137 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,137 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,137 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,138 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,138 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,138 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,138 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,139 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,139 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,139 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,139 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,140 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,140 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,140 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,140 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,141 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,141 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,141 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,141 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,141 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,142 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,142 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,142 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,142 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,142 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,143 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,143 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,143 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,143 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,143 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,143 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,144 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,144 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,144 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,144 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,145 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,145 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,145 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,145 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,146 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,146 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,146 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,146 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,146 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,147 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,147 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,147 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,147 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,150 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,151 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,151 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,151 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,151 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,151 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,151 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,152 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,152 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,152 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:08,155 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 05:13:08,156 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:13:08,156 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:13:08,156 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:13:08,156 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:13:08,156 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:13:08,156 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:13:08,156 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:13:08,157 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:13:08,159 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 88 transitions, 188 flow [2020-10-16 05:13:08,178 INFO L129 PetriNetUnfolder]: 12/107 cut-off events. [2020-10-16 05:13:08,178 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 05:13:08,180 INFO L80 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 107 events. 12/107 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 225 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 71. Up to 6 conditions per place. [2020-10-16 05:13:08,180 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 88 transitions, 188 flow [2020-10-16 05:13:08,181 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 88 transitions, 188 flow [2020-10-16 05:13:08,181 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:13:08,182 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 88 transitions, 188 flow [2020-10-16 05:13:08,182 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 88 transitions, 188 flow [2020-10-16 05:13:08,182 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 88 transitions, 188 flow [2020-10-16 05:13:08,198 INFO L129 PetriNetUnfolder]: 12/107 cut-off events. [2020-10-16 05:13:08,198 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 05:13:08,199 INFO L80 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 107 events. 12/107 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 223 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 71. Up to 6 conditions per place. [2020-10-16 05:13:08,202 INFO L117 LiptonReduction]: Number of co-enabled transitions 2548 [2020-10-16 05:13:09,779 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-16 05:13:09,982 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2020-10-16 05:13:10,047 INFO L132 LiptonReduction]: Checked pairs total: 6169 [2020-10-16 05:13:10,047 INFO L134 LiptonReduction]: Total number of compositions: 80 [2020-10-16 05:13:10,048 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1867 [2020-10-16 05:13:10,052 INFO L129 PetriNetUnfolder]: 2/17 cut-off events. [2020-10-16 05:13:10,052 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 05:13:10,052 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:10,053 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:10,053 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:10,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:10,053 INFO L82 PathProgramCache]: Analyzing trace with hash 59249147, now seen corresponding path program 1 times [2020-10-16 05:13:10,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:10,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768869325] [2020-10-16 05:13:10,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:10,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:10,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768869325] [2020-10-16 05:13:10,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:10,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:13:10,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037975650] [2020-10-16 05:13:10,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:13:10,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:10,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:13:10,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:13:10,117 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 168 [2020-10-16 05:13:10,117 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 27 transitions, 66 flow. Second operand 3 states. [2020-10-16 05:13:10,117 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:10,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 168 [2020-10-16 05:13:10,118 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:10,140 INFO L129 PetriNetUnfolder]: 3/31 cut-off events. [2020-10-16 05:13:10,141 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-16 05:13:10,141 INFO L80 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 31 events. 3/31 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 64 event pairs, 0 based on Foata normal form. 11/36 useless extension candidates. Maximal degree in co-relation 32. Up to 8 conditions per place. [2020-10-16 05:13:10,142 INFO L132 encePairwiseOnDemand]: 163/168 looper letters, 7 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2020-10-16 05:13:10,142 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 27 transitions, 84 flow [2020-10-16 05:13:10,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:13:10,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:13:10,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2020-10-16 05:13:10,146 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7103174603174603 [2020-10-16 05:13:10,147 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 358 transitions. [2020-10-16 05:13:10,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 358 transitions. [2020-10-16 05:13:10,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:10,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 358 transitions. [2020-10-16 05:13:10,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:13:10,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:13:10,154 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:13:10,154 INFO L185 Difference]: Start difference. First operand has 28 places, 27 transitions, 66 flow. Second operand 3 states and 358 transitions. [2020-10-16 05:13:10,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 27 transitions, 84 flow [2020-10-16 05:13:10,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 27 transitions, 82 flow, removed 1 selfloop flow, removed 0 redundant places. [2020-10-16 05:13:10,156 INFO L241 Difference]: Finished difference. Result has 30 places, 26 transitions, 72 flow [2020-10-16 05:13:10,156 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=30, PETRI_TRANSITIONS=26} [2020-10-16 05:13:10,157 INFO L342 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2020-10-16 05:13:10,157 INFO L481 AbstractCegarLoop]: Abstraction has has 30 places, 26 transitions, 72 flow [2020-10-16 05:13:10,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:13:10,157 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:10,157 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2020-10-16 05:13:10,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 05:13:10,158 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:10,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:10,158 INFO L82 PathProgramCache]: Analyzing trace with hash 249691212, now seen corresponding path program 1 times [2020-10-16 05:13:10,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:10,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056120296] [2020-10-16 05:13:10,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:13:10,202 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:13:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:13:10,227 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:13:10,237 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 05:13:10,238 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 05:13:10,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 05:13:10,238 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 05:13:10,239 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 05:13:10,241 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-16 05:13:10,251 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,252 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,252 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,252 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,252 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,252 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,253 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,253 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,253 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,253 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,253 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,253 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,253 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,253 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,254 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,254 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,254 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,254 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,254 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,254 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,254 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,255 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,255 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,255 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,255 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,255 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,256 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,256 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,256 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,256 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,256 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,257 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,257 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,257 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,257 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,258 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,258 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,258 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,258 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,258 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,259 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,259 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,259 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,259 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,259 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,259 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,260 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,260 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,260 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,260 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,260 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,261 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,261 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,261 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,261 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,261 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,262 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,262 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,262 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,262 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,262 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,263 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,263 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,263 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,263 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,263 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,264 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,264 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,264 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,264 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,264 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,265 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,265 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,265 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,265 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,265 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,266 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,266 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,266 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,266 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,266 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,266 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,267 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,267 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,267 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,267 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,267 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,267 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,267 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,268 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,268 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,268 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,268 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,269 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,269 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,269 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,269 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,269 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,269 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,270 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,270 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,270 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,270 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,272 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,272 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,273 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,273 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,273 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,273 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,273 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,274 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,274 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,274 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,275 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,276 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,276 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,276 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,276 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,276 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,276 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,277 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,277 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,277 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:10,278 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 05:13:10,279 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:13:10,279 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:13:10,279 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:13:10,279 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:13:10,279 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:13:10,279 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:13:10,279 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:13:10,279 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:13:10,282 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 108 places, 115 transitions, 251 flow [2020-10-16 05:13:10,301 INFO L129 PetriNetUnfolder]: 17/144 cut-off events. [2020-10-16 05:13:10,302 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-16 05:13:10,303 INFO L80 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 144 events. 17/144 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 370 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 111. Up to 8 conditions per place. [2020-10-16 05:13:10,304 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 115 transitions, 251 flow [2020-10-16 05:13:10,305 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 115 transitions, 251 flow [2020-10-16 05:13:10,306 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:13:10,306 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 115 transitions, 251 flow [2020-10-16 05:13:10,306 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 115 transitions, 251 flow [2020-10-16 05:13:10,306 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 108 places, 115 transitions, 251 flow [2020-10-16 05:13:10,325 INFO L129 PetriNetUnfolder]: 17/144 cut-off events. [2020-10-16 05:13:10,326 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-16 05:13:10,327 INFO L80 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 144 events. 17/144 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 383 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 111. Up to 8 conditions per place. [2020-10-16 05:13:10,334 INFO L117 LiptonReduction]: Number of co-enabled transitions 5928 [2020-10-16 05:13:12,411 INFO L132 LiptonReduction]: Checked pairs total: 13601 [2020-10-16 05:13:12,411 INFO L134 LiptonReduction]: Total number of compositions: 104 [2020-10-16 05:13:12,412 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2106 [2020-10-16 05:13:12,414 INFO L129 PetriNetUnfolder]: 1/14 cut-off events. [2020-10-16 05:13:12,415 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 05:13:12,415 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:12,415 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:12,415 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:12,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:12,416 INFO L82 PathProgramCache]: Analyzing trace with hash -304806248, now seen corresponding path program 1 times [2020-10-16 05:13:12,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:12,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566994491] [2020-10-16 05:13:12,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:12,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:12,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566994491] [2020-10-16 05:13:12,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:12,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:13:12,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366786413] [2020-10-16 05:13:12,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:13:12,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:12,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:13:12,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:13:12,475 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 219 [2020-10-16 05:13:12,476 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 38 transitions, 97 flow. Second operand 4 states. [2020-10-16 05:13:12,476 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:12,476 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 219 [2020-10-16 05:13:12,476 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:12,634 INFO L129 PetriNetUnfolder]: 524/883 cut-off events. [2020-10-16 05:13:12,634 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2020-10-16 05:13:12,640 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1621 conditions, 883 events. 524/883 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 4844 event pairs, 161 based on Foata normal form. 219/734 useless extension candidates. Maximal degree in co-relation 1592. Up to 386 conditions per place. [2020-10-16 05:13:12,648 INFO L132 encePairwiseOnDemand]: 213/219 looper letters, 23 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2020-10-16 05:13:12,649 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 47 transitions, 169 flow [2020-10-16 05:13:12,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:13:12,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:13:12,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 514 transitions. [2020-10-16 05:13:12,652 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.58675799086758 [2020-10-16 05:13:12,653 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 514 transitions. [2020-10-16 05:13:12,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 514 transitions. [2020-10-16 05:13:12,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:12,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 514 transitions. [2020-10-16 05:13:12,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:13:12,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:13:12,657 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:13:12,657 INFO L185 Difference]: Start difference. First operand has 39 places, 38 transitions, 97 flow. Second operand 4 states and 514 transitions. [2020-10-16 05:13:12,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 47 transitions, 169 flow [2020-10-16 05:13:12,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 47 transitions, 163 flow, removed 3 selfloop flow, removed 0 redundant places. [2020-10-16 05:13:12,660 INFO L241 Difference]: Finished difference. Result has 42 places, 38 transitions, 106 flow [2020-10-16 05:13:12,661 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2020-10-16 05:13:12,661 INFO L342 CegarLoopForPetriNet]: 39 programPoint places, 3 predicate places. [2020-10-16 05:13:12,661 INFO L481 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 106 flow [2020-10-16 05:13:12,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:13:12,661 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:12,661 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:12,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 05:13:12,662 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:12,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:12,662 INFO L82 PathProgramCache]: Analyzing trace with hash -859058072, now seen corresponding path program 1 times [2020-10-16 05:13:12,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:12,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373211366] [2020-10-16 05:13:12,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:12,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:12,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373211366] [2020-10-16 05:13:12,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:12,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:13:12,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074909560] [2020-10-16 05:13:12,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:13:12,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:12,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:13:12,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:13:12,731 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 219 [2020-10-16 05:13:12,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 106 flow. Second operand 3 states. [2020-10-16 05:13:12,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:12,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 219 [2020-10-16 05:13:12,732 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:12,761 INFO L129 PetriNetUnfolder]: 5/44 cut-off events. [2020-10-16 05:13:12,762 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-16 05:13:12,762 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 44 events. 5/44 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 105 event pairs, 0 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 55. Up to 8 conditions per place. [2020-10-16 05:13:12,763 INFO L132 encePairwiseOnDemand]: 216/219 looper letters, 7 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2020-10-16 05:13:12,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 38 transitions, 121 flow [2020-10-16 05:13:12,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:13:12,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:13:12,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 481 transitions. [2020-10-16 05:13:12,767 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7321156773211568 [2020-10-16 05:13:12,767 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 481 transitions. [2020-10-16 05:13:12,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 481 transitions. [2020-10-16 05:13:12,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:12,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 481 transitions. [2020-10-16 05:13:12,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:13:12,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:13:12,770 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:13:12,770 INFO L185 Difference]: Start difference. First operand has 42 places, 38 transitions, 106 flow. Second operand 3 states and 481 transitions. [2020-10-16 05:13:12,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 38 transitions, 121 flow [2020-10-16 05:13:12,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 38 transitions, 115 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-16 05:13:12,773 INFO L241 Difference]: Finished difference. Result has 41 places, 37 transitions, 99 flow [2020-10-16 05:13:12,774 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2020-10-16 05:13:12,774 INFO L342 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2020-10-16 05:13:12,774 INFO L481 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 99 flow [2020-10-16 05:13:12,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:13:12,774 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:12,774 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:12,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 05:13:12,776 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:12,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:12,776 INFO L82 PathProgramCache]: Analyzing trace with hash -29493824, now seen corresponding path program 1 times [2020-10-16 05:13:12,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:12,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782533850] [2020-10-16 05:13:12,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:12,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 05:13:12,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782533850] [2020-10-16 05:13:12,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:12,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:13:12,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146371480] [2020-10-16 05:13:12,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:13:12,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:12,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:13:12,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:13:12,857 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 219 [2020-10-16 05:13:12,858 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 99 flow. Second operand 4 states. [2020-10-16 05:13:12,858 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:12,858 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 219 [2020-10-16 05:13:12,858 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:13,035 INFO L129 PetriNetUnfolder]: 546/917 cut-off events. [2020-10-16 05:13:13,035 INFO L130 PetriNetUnfolder]: For 88/88 co-relation queries the response was YES. [2020-10-16 05:13:13,039 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1880 conditions, 917 events. 546/917 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 5054 event pairs, 178 based on Foata normal form. 0/532 useless extension candidates. Maximal degree in co-relation 1826. Up to 418 conditions per place. [2020-10-16 05:13:13,047 INFO L132 encePairwiseOnDemand]: 214/219 looper letters, 23 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2020-10-16 05:13:13,047 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 47 transitions, 177 flow [2020-10-16 05:13:13,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:13:13,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:13:13,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 520 transitions. [2020-10-16 05:13:13,050 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.593607305936073 [2020-10-16 05:13:13,050 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 520 transitions. [2020-10-16 05:13:13,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 520 transitions. [2020-10-16 05:13:13,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:13,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 520 transitions. [2020-10-16 05:13:13,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:13:13,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:13:13,054 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:13:13,054 INFO L185 Difference]: Start difference. First operand has 41 places, 37 transitions, 99 flow. Second operand 4 states and 520 transitions. [2020-10-16 05:13:13,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 47 transitions, 177 flow [2020-10-16 05:13:13,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 47 transitions, 173 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:13:13,056 INFO L241 Difference]: Finished difference. Result has 43 places, 38 transitions, 112 flow [2020-10-16 05:13:13,057 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=43, PETRI_TRANSITIONS=38} [2020-10-16 05:13:13,057 INFO L342 CegarLoopForPetriNet]: 39 programPoint places, 4 predicate places. [2020-10-16 05:13:13,057 INFO L481 AbstractCegarLoop]: Abstraction has has 43 places, 38 transitions, 112 flow [2020-10-16 05:13:13,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:13:13,057 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:13,058 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:13,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 05:13:13,058 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:13,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:13,058 INFO L82 PathProgramCache]: Analyzing trace with hash -955989476, now seen corresponding path program 1 times [2020-10-16 05:13:13,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:13,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175604194] [2020-10-16 05:13:13,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:13,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:13,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175604194] [2020-10-16 05:13:13,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:13,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:13:13,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986016716] [2020-10-16 05:13:13,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:13:13,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:13,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:13:13,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:13:13,126 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 219 [2020-10-16 05:13:13,126 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 38 transitions, 112 flow. Second operand 4 states. [2020-10-16 05:13:13,126 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:13,127 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 219 [2020-10-16 05:13:13,127 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:13,711 INFO L129 PetriNetUnfolder]: 2532/3962 cut-off events. [2020-10-16 05:13:13,711 INFO L130 PetriNetUnfolder]: For 587/587 co-relation queries the response was YES. [2020-10-16 05:13:13,725 INFO L80 FinitePrefix]: Finished finitePrefix Result has 8749 conditions, 3962 events. 2532/3962 cut-off events. For 587/587 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 26008 event pairs, 192 based on Foata normal form. 0/2948 useless extension candidates. Maximal degree in co-relation 8727. Up to 1611 conditions per place. [2020-10-16 05:13:13,769 INFO L132 encePairwiseOnDemand]: 211/219 looper letters, 76 selfloop transitions, 9 changer transitions 0/97 dead transitions. [2020-10-16 05:13:13,770 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 97 transitions, 435 flow [2020-10-16 05:13:13,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 05:13:13,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 05:13:13,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 622 transitions. [2020-10-16 05:13:13,774 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.5680365296803653 [2020-10-16 05:13:13,774 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 622 transitions. [2020-10-16 05:13:13,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 622 transitions. [2020-10-16 05:13:13,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:13,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 622 transitions. [2020-10-16 05:13:13,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 05:13:13,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 05:13:13,778 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 05:13:13,779 INFO L185 Difference]: Start difference. First operand has 43 places, 38 transitions, 112 flow. Second operand 5 states and 622 transitions. [2020-10-16 05:13:13,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 97 transitions, 435 flow [2020-10-16 05:13:13,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 97 transitions, 424 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:13:13,785 INFO L241 Difference]: Finished difference. Result has 48 places, 46 transitions, 176 flow [2020-10-16 05:13:13,785 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=176, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2020-10-16 05:13:13,785 INFO L342 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2020-10-16 05:13:13,786 INFO L481 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 176 flow [2020-10-16 05:13:13,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:13:13,786 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:13,786 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:13,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 05:13:13,786 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:13,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:13,787 INFO L82 PathProgramCache]: Analyzing trace with hash -914307641, now seen corresponding path program 1 times [2020-10-16 05:13:13,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:13,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900031500] [2020-10-16 05:13:13,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:13,831 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 05:13:13,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900031500] [2020-10-16 05:13:13,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:13,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:13:13,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171775459] [2020-10-16 05:13:13,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:13:13,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:13,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:13:13,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:13:13,835 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 219 [2020-10-16 05:13:13,835 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 46 transitions, 176 flow. Second operand 3 states. [2020-10-16 05:13:13,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:13,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 219 [2020-10-16 05:13:13,836 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:13,882 INFO L129 PetriNetUnfolder]: 31/152 cut-off events. [2020-10-16 05:13:13,882 INFO L130 PetriNetUnfolder]: For 49/81 co-relation queries the response was YES. [2020-10-16 05:13:13,883 INFO L80 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 152 events. 31/152 cut-off events. For 49/81 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 645 event pairs, 3 based on Foata normal form. 7/123 useless extension candidates. Maximal degree in co-relation 278. Up to 29 conditions per place. [2020-10-16 05:13:13,884 INFO L132 encePairwiseOnDemand]: 216/219 looper letters, 9 selfloop transitions, 2 changer transitions 0/46 dead transitions. [2020-10-16 05:13:13,885 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 46 transitions, 196 flow [2020-10-16 05:13:13,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:13:13,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:13:13,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 478 transitions. [2020-10-16 05:13:13,887 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7275494672754946 [2020-10-16 05:13:13,887 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 478 transitions. [2020-10-16 05:13:13,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 478 transitions. [2020-10-16 05:13:13,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:13,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 478 transitions. [2020-10-16 05:13:13,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:13:13,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:13:13,890 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:13:13,890 INFO L185 Difference]: Start difference. First operand has 48 places, 46 transitions, 176 flow. Second operand 3 states and 478 transitions. [2020-10-16 05:13:13,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 46 transitions, 196 flow [2020-10-16 05:13:13,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 46 transitions, 189 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:13:13,893 INFO L241 Difference]: Finished difference. Result has 48 places, 45 transitions, 169 flow [2020-10-16 05:13:13,893 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=169, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2020-10-16 05:13:13,893 INFO L342 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2020-10-16 05:13:13,893 INFO L481 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 169 flow [2020-10-16 05:13:13,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:13:13,894 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:13,894 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:13,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 05:13:13,894 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:13,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:13,895 INFO L82 PathProgramCache]: Analyzing trace with hash 429098340, now seen corresponding path program 1 times [2020-10-16 05:13:13,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:13,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523347401] [2020-10-16 05:13:13,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:13,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:13,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523347401] [2020-10-16 05:13:13,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292032381] [2020-10-16 05:13:13,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 05:13:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:14,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 05:13:14,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 05:13:14,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:14,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 05:13:14,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-10-16 05:13:14,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819316129] [2020-10-16 05:13:14,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 05:13:14,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:14,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 05:13:14,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-16 05:13:14,053 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 219 [2020-10-16 05:13:14,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 169 flow. Second operand 8 states. [2020-10-16 05:13:14,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:14,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 219 [2020-10-16 05:13:14,054 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:15,257 INFO L129 PetriNetUnfolder]: 4568/7230 cut-off events. [2020-10-16 05:13:15,258 INFO L130 PetriNetUnfolder]: For 2885/2885 co-relation queries the response was YES. [2020-10-16 05:13:15,291 INFO L80 FinitePrefix]: Finished finitePrefix Result has 18290 conditions, 7230 events. 4568/7230 cut-off events. For 2885/2885 co-relation queries the response was YES. Maximal size of possible extension queue 594. Compared 50475 event pairs, 427 based on Foata normal form. 0/5542 useless extension candidates. Maximal degree in co-relation 18265. Up to 1762 conditions per place. [2020-10-16 05:13:15,364 INFO L132 encePairwiseOnDemand]: 205/219 looper letters, 148 selfloop transitions, 44 changer transitions 0/204 dead transitions. [2020-10-16 05:13:15,365 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 204 transitions, 1062 flow [2020-10-16 05:13:15,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-16 05:13:15,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-16 05:13:15,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1502 transitions. [2020-10-16 05:13:15,372 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.571537290715373 [2020-10-16 05:13:15,372 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1502 transitions. [2020-10-16 05:13:15,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1502 transitions. [2020-10-16 05:13:15,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:15,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1502 transitions. [2020-10-16 05:13:15,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-16 05:13:15,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-16 05:13:15,381 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-16 05:13:15,382 INFO L185 Difference]: Start difference. First operand has 48 places, 45 transitions, 169 flow. Second operand 12 states and 1502 transitions. [2020-10-16 05:13:15,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 204 transitions, 1062 flow [2020-10-16 05:13:15,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 204 transitions, 1040 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:13:15,403 INFO L241 Difference]: Finished difference. Result has 68 places, 83 transitions, 603 flow [2020-10-16 05:13:15,404 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=219, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=603, PETRI_PLACES=68, PETRI_TRANSITIONS=83} [2020-10-16 05:13:15,404 INFO L342 CegarLoopForPetriNet]: 39 programPoint places, 29 predicate places. [2020-10-16 05:13:15,404 INFO L481 AbstractCegarLoop]: Abstraction has has 68 places, 83 transitions, 603 flow [2020-10-16 05:13:15,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 05:13:15,404 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:15,405 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-10-16 05:13:15,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-16 05:13:15,619 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:15,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:15,619 INFO L82 PathProgramCache]: Analyzing trace with hash -224584586, now seen corresponding path program 1 times [2020-10-16 05:13:15,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:15,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713421665] [2020-10-16 05:13:15,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:13:15,631 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:13:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:13:15,637 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:13:15,642 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 05:13:15,643 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 05:13:15,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 05:13:15,643 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 05:13:15,643 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 05:13:15,644 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-16 05:13:15,652 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,652 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,652 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,652 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,652 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,653 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,653 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,653 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,653 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,653 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,653 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,654 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,654 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,654 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,654 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,654 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,654 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,654 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,655 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,655 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,655 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,655 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,655 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,655 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,655 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,656 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,656 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,656 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,656 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,656 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,656 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,657 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,657 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,657 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,657 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,657 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,657 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,657 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,658 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,658 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,658 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,658 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,658 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,658 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,658 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,659 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,659 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,659 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,659 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,659 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,659 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,659 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,660 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,660 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,660 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,660 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,660 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,660 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,660 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,661 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,661 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,661 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,661 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,661 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,661 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,661 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,662 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,662 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,662 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,662 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,662 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,662 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,662 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,663 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,663 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,663 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,663 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,663 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,663 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,663 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,663 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,664 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,664 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,664 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,664 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,664 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,664 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,664 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,664 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,665 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,665 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,665 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,665 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,665 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,666 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,666 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,666 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,666 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,666 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,666 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,666 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,666 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,666 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,667 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,667 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,667 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,667 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,667 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,667 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,667 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,668 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,668 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,668 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,668 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,668 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,668 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,668 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,669 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,669 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,669 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,669 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,669 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,669 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,669 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,670 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,670 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,670 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,670 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,670 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,671 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,671 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,671 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,671 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,671 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,673 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,673 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,673 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,673 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,673 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,674 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,674 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,674 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,674 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,674 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,675 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,675 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,676 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,676 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,676 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,676 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,676 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,676 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,676 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,677 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,678 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,678 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,678 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,678 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,679 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,679 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,679 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,679 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,679 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,679 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:13:15,680 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 05:13:15,681 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:13:15,681 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:13:15,681 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:13:15,681 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:13:15,681 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:13:15,681 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:13:15,681 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:13:15,681 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:13:15,683 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 133 places, 142 transitions, 316 flow [2020-10-16 05:13:15,701 INFO L129 PetriNetUnfolder]: 22/181 cut-off events. [2020-10-16 05:13:15,701 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-16 05:13:15,703 INFO L80 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 181 events. 22/181 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 546 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 152. Up to 10 conditions per place. [2020-10-16 05:13:15,703 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 142 transitions, 316 flow [2020-10-16 05:13:15,706 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 142 transitions, 316 flow [2020-10-16 05:13:15,706 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:13:15,706 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 142 transitions, 316 flow [2020-10-16 05:13:15,706 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 142 transitions, 316 flow [2020-10-16 05:13:15,706 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 133 places, 142 transitions, 316 flow [2020-10-16 05:13:15,724 INFO L129 PetriNetUnfolder]: 22/181 cut-off events. [2020-10-16 05:13:15,724 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-16 05:13:15,726 INFO L80 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 181 events. 22/181 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 546 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 152. Up to 10 conditions per place. [2020-10-16 05:13:15,736 INFO L117 LiptonReduction]: Number of co-enabled transitions 10712 [2020-10-16 05:13:18,446 INFO L132 LiptonReduction]: Checked pairs total: 28037 [2020-10-16 05:13:18,446 INFO L134 LiptonReduction]: Total number of compositions: 126 [2020-10-16 05:13:18,446 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2740 [2020-10-16 05:13:18,449 INFO L129 PetriNetUnfolder]: 2/16 cut-off events. [2020-10-16 05:13:18,449 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 05:13:18,449 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:18,449 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:18,449 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:18,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:18,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1492952008, now seen corresponding path program 1 times [2020-10-16 05:13:18,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:18,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746004598] [2020-10-16 05:13:18,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:18,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:18,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746004598] [2020-10-16 05:13:18,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:18,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:13:18,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95254026] [2020-10-16 05:13:18,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:13:18,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:18,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:13:18,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:13:18,478 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 268 [2020-10-16 05:13:18,479 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 49 transitions, 130 flow. Second operand 4 states. [2020-10-16 05:13:18,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:18,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 268 [2020-10-16 05:13:18,479 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:19,062 INFO L129 PetriNetUnfolder]: 3763/5571 cut-off events. [2020-10-16 05:13:19,062 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2020-10-16 05:13:19,094 INFO L80 FinitePrefix]: Finished finitePrefix Result has 10276 conditions, 5571 events. 3763/5571 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 431. Compared 33760 event pairs, 1135 based on Foata normal form. 1033/4266 useless extension candidates. Maximal degree in co-relation 10237. Up to 2467 conditions per place. [2020-10-16 05:13:19,136 INFO L132 encePairwiseOnDemand]: 262/268 looper letters, 31 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2020-10-16 05:13:19,136 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 62 transitions, 226 flow [2020-10-16 05:13:19,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:13:19,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:13:19,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 686 transitions. [2020-10-16 05:13:19,139 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6399253731343284 [2020-10-16 05:13:19,139 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 686 transitions. [2020-10-16 05:13:19,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 686 transitions. [2020-10-16 05:13:19,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:19,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 686 transitions. [2020-10-16 05:13:19,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:13:19,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:13:19,143 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:13:19,144 INFO L185 Difference]: Start difference. First operand has 50 places, 49 transitions, 130 flow. Second operand 4 states and 686 transitions. [2020-10-16 05:13:19,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 62 transitions, 226 flow [2020-10-16 05:13:19,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 62 transitions, 214 flow, removed 6 selfloop flow, removed 0 redundant places. [2020-10-16 05:13:19,146 INFO L241 Difference]: Finished difference. Result has 53 places, 49 transitions, 133 flow [2020-10-16 05:13:19,146 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=133, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2020-10-16 05:13:19,146 INFO L342 CegarLoopForPetriNet]: 50 programPoint places, 3 predicate places. [2020-10-16 05:13:19,146 INFO L481 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 133 flow [2020-10-16 05:13:19,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:13:19,147 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:19,147 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:19,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 05:13:19,147 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:19,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:19,147 INFO L82 PathProgramCache]: Analyzing trace with hash -963126366, now seen corresponding path program 1 times [2020-10-16 05:13:19,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:19,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928722688] [2020-10-16 05:13:19,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:19,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:19,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928722688] [2020-10-16 05:13:19,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:19,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:13:19,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466377168] [2020-10-16 05:13:19,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:13:19,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:19,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:13:19,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:13:19,178 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 268 [2020-10-16 05:13:19,178 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 133 flow. Second operand 3 states. [2020-10-16 05:13:19,178 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:19,178 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 268 [2020-10-16 05:13:19,179 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:19,195 INFO L129 PetriNetUnfolder]: 7/57 cut-off events. [2020-10-16 05:13:19,196 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2020-10-16 05:13:19,196 INFO L80 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 57 events. 7/57 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 138 event pairs, 0 based on Foata normal form. 1/47 useless extension candidates. Maximal degree in co-relation 71. Up to 8 conditions per place. [2020-10-16 05:13:19,197 INFO L132 encePairwiseOnDemand]: 265/268 looper letters, 7 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2020-10-16 05:13:19,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 49 transitions, 148 flow [2020-10-16 05:13:19,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:13:19,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:13:19,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 613 transitions. [2020-10-16 05:13:19,200 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7624378109452736 [2020-10-16 05:13:19,200 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 613 transitions. [2020-10-16 05:13:19,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 613 transitions. [2020-10-16 05:13:19,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:19,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 613 transitions. [2020-10-16 05:13:19,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:13:19,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:13:19,204 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:13:19,204 INFO L185 Difference]: Start difference. First operand has 53 places, 49 transitions, 133 flow. Second operand 3 states and 613 transitions. [2020-10-16 05:13:19,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 49 transitions, 148 flow [2020-10-16 05:13:19,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 49 transitions, 142 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-16 05:13:19,206 INFO L241 Difference]: Finished difference. Result has 52 places, 48 transitions, 126 flow [2020-10-16 05:13:19,206 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=52, PETRI_TRANSITIONS=48} [2020-10-16 05:13:19,206 INFO L342 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2020-10-16 05:13:19,207 INFO L481 AbstractCegarLoop]: Abstraction has has 52 places, 48 transitions, 126 flow [2020-10-16 05:13:19,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:13:19,207 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:19,207 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:19,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 05:13:19,207 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:19,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:19,208 INFO L82 PathProgramCache]: Analyzing trace with hash 179854653, now seen corresponding path program 1 times [2020-10-16 05:13:19,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:19,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019728413] [2020-10-16 05:13:19,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:19,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 05:13:19,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019728413] [2020-10-16 05:13:19,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:19,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:13:19,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147639849] [2020-10-16 05:13:19,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:13:19,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:19,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:13:19,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:13:19,239 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 268 [2020-10-16 05:13:19,240 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 48 transitions, 126 flow. Second operand 4 states. [2020-10-16 05:13:19,240 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:19,240 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 268 [2020-10-16 05:13:19,240 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:19,745 INFO L129 PetriNetUnfolder]: 3859/5613 cut-off events. [2020-10-16 05:13:19,745 INFO L130 PetriNetUnfolder]: For 411/411 co-relation queries the response was YES. [2020-10-16 05:13:19,768 INFO L80 FinitePrefix]: Finished finitePrefix Result has 11350 conditions, 5613 events. 3859/5613 cut-off events. For 411/411 co-relation queries the response was YES. Maximal size of possible extension queue 432. Compared 33912 event pairs, 1240 based on Foata normal form. 0/3154 useless extension candidates. Maximal degree in co-relation 11295. Up to 2627 conditions per place. [2020-10-16 05:13:19,812 INFO L132 encePairwiseOnDemand]: 263/268 looper letters, 31 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2020-10-16 05:13:19,813 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 62 transitions, 228 flow [2020-10-16 05:13:19,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:13:19,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:13:19,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 676 transitions. [2020-10-16 05:13:19,816 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6305970149253731 [2020-10-16 05:13:19,816 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 676 transitions. [2020-10-16 05:13:19,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 676 transitions. [2020-10-16 05:13:19,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:19,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 676 transitions. [2020-10-16 05:13:19,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:13:19,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:13:19,820 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:13:19,820 INFO L185 Difference]: Start difference. First operand has 52 places, 48 transitions, 126 flow. Second operand 4 states and 676 transitions. [2020-10-16 05:13:19,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 62 transitions, 228 flow [2020-10-16 05:13:19,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 62 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:13:19,822 INFO L241 Difference]: Finished difference. Result has 54 places, 49 transitions, 139 flow [2020-10-16 05:13:19,823 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=139, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2020-10-16 05:13:19,823 INFO L342 CegarLoopForPetriNet]: 50 programPoint places, 4 predicate places. [2020-10-16 05:13:19,823 INFO L481 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 139 flow [2020-10-16 05:13:19,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:13:19,823 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:19,823 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:19,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-16 05:13:19,824 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:19,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:19,824 INFO L82 PathProgramCache]: Analyzing trace with hash 2112321984, now seen corresponding path program 1 times [2020-10-16 05:13:19,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:19,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608275230] [2020-10-16 05:13:19,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:19,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:19,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608275230] [2020-10-16 05:13:19,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:19,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:13:19,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542774453] [2020-10-16 05:13:19,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 05:13:19,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:19,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 05:13:19,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 05:13:19,874 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 268 [2020-10-16 05:13:19,875 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 139 flow. Second operand 5 states. [2020-10-16 05:13:19,875 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:19,875 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 268 [2020-10-16 05:13:19,875 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:26,420 INFO L129 PetriNetUnfolder]: 44981/62782 cut-off events. [2020-10-16 05:13:26,420 INFO L130 PetriNetUnfolder]: For 7850/7850 co-relation queries the response was YES. [2020-10-16 05:13:26,611 INFO L80 FinitePrefix]: Finished finitePrefix Result has 136631 conditions, 62782 events. 44981/62782 cut-off events. For 7850/7850 co-relation queries the response was YES. Maximal size of possible extension queue 3718. Compared 454250 event pairs, 5502 based on Foata normal form. 0/47148 useless extension candidates. Maximal degree in co-relation 136608. Up to 16953 conditions per place. [2020-10-16 05:13:26,939 INFO L132 encePairwiseOnDemand]: 251/268 looper letters, 137 selfloop transitions, 36 changer transitions 0/189 dead transitions. [2020-10-16 05:13:26,940 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 189 transitions, 835 flow [2020-10-16 05:13:26,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 05:13:26,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 05:13:26,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1214 transitions. [2020-10-16 05:13:26,944 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6471215351812367 [2020-10-16 05:13:26,944 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1214 transitions. [2020-10-16 05:13:26,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1214 transitions. [2020-10-16 05:13:26,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:26,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1214 transitions. [2020-10-16 05:13:26,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 05:13:26,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 05:13:26,951 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 05:13:26,951 INFO L185 Difference]: Start difference. First operand has 54 places, 49 transitions, 139 flow. Second operand 7 states and 1214 transitions. [2020-10-16 05:13:26,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 189 transitions, 835 flow [2020-10-16 05:13:27,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 189 transitions, 820 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:13:27,127 INFO L241 Difference]: Finished difference. Result has 63 places, 89 transitions, 432 flow [2020-10-16 05:13:27,127 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=432, PETRI_PLACES=63, PETRI_TRANSITIONS=89} [2020-10-16 05:13:27,127 INFO L342 CegarLoopForPetriNet]: 50 programPoint places, 13 predicate places. [2020-10-16 05:13:27,127 INFO L481 AbstractCegarLoop]: Abstraction has has 63 places, 89 transitions, 432 flow [2020-10-16 05:13:27,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 05:13:27,128 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:27,128 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:27,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-16 05:13:27,128 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:27,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:27,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1280528254, now seen corresponding path program 1 times [2020-10-16 05:13:27,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:27,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490206719] [2020-10-16 05:13:27,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:27,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 05:13:27,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490206719] [2020-10-16 05:13:27,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:27,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:13:27,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002667897] [2020-10-16 05:13:27,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:13:27,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:27,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:13:27,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:13:27,153 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 268 [2020-10-16 05:13:27,154 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 89 transitions, 432 flow. Second operand 3 states. [2020-10-16 05:13:27,154 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:27,154 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 268 [2020-10-16 05:13:27,154 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:27,402 INFO L129 PetriNetUnfolder]: 1220/2975 cut-off events. [2020-10-16 05:13:27,402 INFO L130 PetriNetUnfolder]: For 1695/2204 co-relation queries the response was YES. [2020-10-16 05:13:27,421 INFO L80 FinitePrefix]: Finished finitePrefix Result has 7208 conditions, 2975 events. 1220/2975 cut-off events. For 1695/2204 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 26762 event pairs, 255 based on Foata normal form. 123/2588 useless extension candidates. Maximal degree in co-relation 7181. Up to 613 conditions per place. [2020-10-16 05:13:27,435 INFO L132 encePairwiseOnDemand]: 265/268 looper letters, 12 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2020-10-16 05:13:27,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 89 transitions, 458 flow [2020-10-16 05:13:27,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:13:27,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:13:27,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 613 transitions. [2020-10-16 05:13:27,437 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7624378109452736 [2020-10-16 05:13:27,437 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 613 transitions. [2020-10-16 05:13:27,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 613 transitions. [2020-10-16 05:13:27,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:27,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 613 transitions. [2020-10-16 05:13:27,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:13:27,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:13:27,442 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:13:27,442 INFO L185 Difference]: Start difference. First operand has 63 places, 89 transitions, 432 flow. Second operand 3 states and 613 transitions. [2020-10-16 05:13:27,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 89 transitions, 458 flow [2020-10-16 05:13:27,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 89 transitions, 456 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 05:13:27,449 INFO L241 Difference]: Finished difference. Result has 64 places, 88 transitions, 430 flow [2020-10-16 05:13:27,449 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=430, PETRI_PLACES=64, PETRI_TRANSITIONS=88} [2020-10-16 05:13:27,450 INFO L342 CegarLoopForPetriNet]: 50 programPoint places, 14 predicate places. [2020-10-16 05:13:27,450 INFO L481 AbstractCegarLoop]: Abstraction has has 64 places, 88 transitions, 430 flow [2020-10-16 05:13:27,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:13:27,450 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:27,450 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:27,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-16 05:13:27,450 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:27,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:27,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1057473706, now seen corresponding path program 1 times [2020-10-16 05:13:27,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:27,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203695739] [2020-10-16 05:13:27,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:27,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:27,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203695739] [2020-10-16 05:13:27,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750021726] [2020-10-16 05:13:27,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 05:13:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:27,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 05:13:27,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 05:13:27,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:27,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 05:13:27,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-16 05:13:27,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260364300] [2020-10-16 05:13:27,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 05:13:27,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:27,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 05:13:27,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 05:13:27,554 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 268 [2020-10-16 05:13:27,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 88 transitions, 430 flow. Second operand 5 states. [2020-10-16 05:13:27,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:27,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 268 [2020-10-16 05:13:27,555 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:38,999 INFO L129 PetriNetUnfolder]: 73672/101970 cut-off events. [2020-10-16 05:13:38,999 INFO L130 PetriNetUnfolder]: For 90241/92836 co-relation queries the response was YES. [2020-10-16 05:13:39,427 INFO L80 FinitePrefix]: Finished finitePrefix Result has 284157 conditions, 101970 events. 73672/101970 cut-off events. For 90241/92836 co-relation queries the response was YES. Maximal size of possible extension queue 5853. Compared 760458 event pairs, 11640 based on Foata normal form. 2350/82931 useless extension candidates. Maximal degree in co-relation 284128. Up to 29426 conditions per place. [2020-10-16 05:13:39,938 INFO L132 encePairwiseOnDemand]: 253/268 looper letters, 155 selfloop transitions, 68 changer transitions 0/239 dead transitions. [2020-10-16 05:13:39,938 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 239 transitions, 1526 flow [2020-10-16 05:13:39,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 05:13:39,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 05:13:39,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1198 transitions. [2020-10-16 05:13:39,943 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6385927505330491 [2020-10-16 05:13:39,943 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1198 transitions. [2020-10-16 05:13:39,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1198 transitions. [2020-10-16 05:13:39,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:39,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1198 transitions. [2020-10-16 05:13:39,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 05:13:39,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 05:13:39,950 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 05:13:39,950 INFO L185 Difference]: Start difference. First operand has 64 places, 88 transitions, 430 flow. Second operand 7 states and 1198 transitions. [2020-10-16 05:13:39,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 239 transitions, 1526 flow [2020-10-16 05:13:40,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 239 transitions, 1512 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:13:40,356 INFO L241 Difference]: Finished difference. Result has 74 places, 136 transitions, 1069 flow [2020-10-16 05:13:40,356 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1069, PETRI_PLACES=74, PETRI_TRANSITIONS=136} [2020-10-16 05:13:40,356 INFO L342 CegarLoopForPetriNet]: 50 programPoint places, 24 predicate places. [2020-10-16 05:13:40,357 INFO L481 AbstractCegarLoop]: Abstraction has has 74 places, 136 transitions, 1069 flow [2020-10-16 05:13:40,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 05:13:40,357 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:40,357 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:40,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-10-16 05:13:40,572 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:40,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:40,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1578051840, now seen corresponding path program 2 times [2020-10-16 05:13:40,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:40,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85006203] [2020-10-16 05:13:40,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:40,626 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:40,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85006203] [2020-10-16 05:13:40,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315022900] [2020-10-16 05:13:40,627 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 05:13:40,695 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-16 05:13:40,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 05:13:40,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-16 05:13:40,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 05:13:40,705 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:13:40,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 05:13:40,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-10-16 05:13:40,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367272674] [2020-10-16 05:13:40,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 05:13:40,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:40,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 05:13:40,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-16 05:13:40,709 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 268 [2020-10-16 05:13:40,710 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 136 transitions, 1069 flow. Second operand 6 states. [2020-10-16 05:13:40,710 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:40,710 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 268 [2020-10-16 05:13:40,710 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:13:55,882 INFO L129 PetriNetUnfolder]: 81646/112254 cut-off events. [2020-10-16 05:13:55,882 INFO L130 PetriNetUnfolder]: For 307134/311624 co-relation queries the response was YES. [2020-10-16 05:13:56,500 INFO L80 FinitePrefix]: Finished finitePrefix Result has 382051 conditions, 112254 events. 81646/112254 cut-off events. For 307134/311624 co-relation queries the response was YES. Maximal size of possible extension queue 6183. Compared 832882 event pairs, 12439 based on Foata normal form. 1229/92030 useless extension candidates. Maximal degree in co-relation 382017. Up to 29410 conditions per place. [2020-10-16 05:13:57,132 INFO L132 encePairwiseOnDemand]: 257/268 looper letters, 193 selfloop transitions, 82 changer transitions 0/291 dead transitions. [2020-10-16 05:13:57,132 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 291 transitions, 2458 flow [2020-10-16 05:13:57,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 05:13:57,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-16 05:13:57,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1527 transitions. [2020-10-16 05:13:57,137 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6330845771144279 [2020-10-16 05:13:57,138 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1527 transitions. [2020-10-16 05:13:57,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1527 transitions. [2020-10-16 05:13:57,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:13:57,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1527 transitions. [2020-10-16 05:13:57,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-16 05:13:57,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-16 05:13:57,146 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-16 05:13:57,146 INFO L185 Difference]: Start difference. First operand has 74 places, 136 transitions, 1069 flow. Second operand 9 states and 1527 transitions. [2020-10-16 05:13:57,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 291 transitions, 2458 flow [2020-10-16 05:13:58,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 291 transitions, 2436 flow, removed 11 selfloop flow, removed 0 redundant places. [2020-10-16 05:13:58,882 INFO L241 Difference]: Finished difference. Result has 84 places, 150 transitions, 1382 flow [2020-10-16 05:13:58,882 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=1047, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1382, PETRI_PLACES=84, PETRI_TRANSITIONS=150} [2020-10-16 05:13:58,883 INFO L342 CegarLoopForPetriNet]: 50 programPoint places, 34 predicate places. [2020-10-16 05:13:58,883 INFO L481 AbstractCegarLoop]: Abstraction has has 84 places, 150 transitions, 1382 flow [2020-10-16 05:13:58,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 05:13:58,883 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:13:58,883 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:13:59,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-10-16 05:13:59,092 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:13:59,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:13:59,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1396627311, now seen corresponding path program 1 times [2020-10-16 05:13:59,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:13:59,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423537362] [2020-10-16 05:13:59,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:13:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:13:59,140 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-16 05:13:59,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423537362] [2020-10-16 05:13:59,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:13:59,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:13:59,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458317979] [2020-10-16 05:13:59,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:13:59,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:13:59,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:13:59,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:13:59,142 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 268 [2020-10-16 05:13:59,143 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 150 transitions, 1382 flow. Second operand 3 states. [2020-10-16 05:13:59,143 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:13:59,143 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 268 [2020-10-16 05:13:59,143 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:14:00,535 INFO L129 PetriNetUnfolder]: 2718/6551 cut-off events. [2020-10-16 05:14:00,535 INFO L130 PetriNetUnfolder]: For 23895/25373 co-relation queries the response was YES. [2020-10-16 05:14:00,584 INFO L80 FinitePrefix]: Finished finitePrefix Result has 26924 conditions, 6551 events. 2718/6551 cut-off events. For 23895/25373 co-relation queries the response was YES. Maximal size of possible extension queue 721. Compared 67178 event pairs, 606 based on Foata normal form. 265/6259 useless extension candidates. Maximal degree in co-relation 26889. Up to 1655 conditions per place. [2020-10-16 05:14:00,620 INFO L132 encePairwiseOnDemand]: 264/268 looper letters, 21 selfloop transitions, 2 changer transitions 0/151 dead transitions. [2020-10-16 05:14:00,621 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 151 transitions, 1430 flow [2020-10-16 05:14:00,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:14:00,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:14:00,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 614 transitions. [2020-10-16 05:14:00,623 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.763681592039801 [2020-10-16 05:14:00,623 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 614 transitions. [2020-10-16 05:14:00,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 614 transitions. [2020-10-16 05:14:00,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:14:00,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 614 transitions. [2020-10-16 05:14:00,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:14:00,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:14:00,626 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:14:00,626 INFO L185 Difference]: Start difference. First operand has 84 places, 150 transitions, 1382 flow. Second operand 3 states and 614 transitions. [2020-10-16 05:14:00,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 151 transitions, 1430 flow [2020-10-16 05:14:00,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 151 transitions, 1332 flow, removed 10 selfloop flow, removed 4 redundant places. [2020-10-16 05:14:00,696 INFO L241 Difference]: Finished difference. Result has 83 places, 150 transitions, 1294 flow [2020-10-16 05:14:00,697 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1294, PETRI_PLACES=83, PETRI_TRANSITIONS=150} [2020-10-16 05:14:00,697 INFO L342 CegarLoopForPetriNet]: 50 programPoint places, 33 predicate places. [2020-10-16 05:14:00,697 INFO L481 AbstractCegarLoop]: Abstraction has has 83 places, 150 transitions, 1294 flow [2020-10-16 05:14:00,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:14:00,697 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:14:00,697 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:14:00,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-16 05:14:00,698 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:14:00,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:14:00,698 INFO L82 PathProgramCache]: Analyzing trace with hash -2103194531, now seen corresponding path program 1 times [2020-10-16 05:14:00,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:14:00,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000945995] [2020-10-16 05:14:00,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:14:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:14:00,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 05:14:00,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000945995] [2020-10-16 05:14:00,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:14:00,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:14:00,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447277835] [2020-10-16 05:14:00,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 05:14:00,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:14:00,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 05:14:00,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 05:14:00,745 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 268 [2020-10-16 05:14:00,746 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 150 transitions, 1294 flow. Second operand 5 states. [2020-10-16 05:14:00,746 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:14:00,746 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 268 [2020-10-16 05:14:00,746 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:14:40,840 INFO L129 PetriNetUnfolder]: 151436/218504 cut-off events. [2020-10-16 05:14:40,841 INFO L130 PetriNetUnfolder]: For 792205/797976 co-relation queries the response was YES. [2020-10-16 05:14:42,197 INFO L80 FinitePrefix]: Finished finitePrefix Result has 815592 conditions, 218504 events. 151436/218504 cut-off events. For 792205/797976 co-relation queries the response was YES. Maximal size of possible extension queue 12468. Compared 1901030 event pairs, 29918 based on Foata normal form. 28/183057 useless extension candidates. Maximal degree in co-relation 815435. Up to 97962 conditions per place. [2020-10-16 05:14:43,517 INFO L132 encePairwiseOnDemand]: 251/268 looper letters, 304 selfloop transitions, 153 changer transitions 0/474 dead transitions. [2020-10-16 05:14:43,518 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 474 transitions, 5041 flow [2020-10-16 05:14:43,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 05:14:43,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 05:14:43,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1194 transitions. [2020-10-16 05:14:43,528 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6364605543710021 [2020-10-16 05:14:43,528 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1194 transitions. [2020-10-16 05:14:43,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1194 transitions. [2020-10-16 05:14:43,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:14:43,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1194 transitions. [2020-10-16 05:14:43,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 05:14:43,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 05:14:43,534 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 05:14:43,535 INFO L185 Difference]: Start difference. First operand has 83 places, 150 transitions, 1294 flow. Second operand 7 states and 1194 transitions. [2020-10-16 05:14:43,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 474 transitions, 5041 flow [2020-10-16 05:15:07,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 474 transitions, 5027 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:15:07,311 INFO L241 Difference]: Finished difference. Result has 92 places, 302 transitions, 3555 flow [2020-10-16 05:15:07,311 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=1290, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3555, PETRI_PLACES=92, PETRI_TRANSITIONS=302} [2020-10-16 05:15:07,311 INFO L342 CegarLoopForPetriNet]: 50 programPoint places, 42 predicate places. [2020-10-16 05:15:07,311 INFO L481 AbstractCegarLoop]: Abstraction has has 92 places, 302 transitions, 3555 flow [2020-10-16 05:15:07,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 05:15:07,311 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:15:07,311 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:15:07,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-16 05:15:07,312 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:15:07,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:15:07,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1674965142, now seen corresponding path program 3 times [2020-10-16 05:15:07,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:15:07,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078902147] [2020-10-16 05:15:07,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:15:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:15:07,381 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:15:07,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078902147] [2020-10-16 05:15:07,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949375575] [2020-10-16 05:15:07,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 05:15:07,442 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-16 05:15:07,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 05:15:07,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 05:15:07,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 05:15:07,481 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-16 05:15:07,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-16 05:15:07,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2020-10-16 05:15:07,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071435342] [2020-10-16 05:15:07,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 05:15:07,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:15:07,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 05:15:07,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-16 05:15:07,486 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 268 [2020-10-16 05:15:07,487 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 302 transitions, 3555 flow. Second operand 5 states. [2020-10-16 05:15:07,487 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:15:07,487 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 268 [2020-10-16 05:15:07,487 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:16:18,830 INFO L129 PetriNetUnfolder]: 226110/318599 cut-off events. [2020-10-16 05:16:18,830 INFO L130 PetriNetUnfolder]: For 1467082/1477723 co-relation queries the response was YES. [2020-10-16 05:16:21,189 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1300806 conditions, 318599 events. 226110/318599 cut-off events. For 1467082/1477723 co-relation queries the response was YES. Maximal size of possible extension queue 16660. Compared 2747675 event pairs, 41585 based on Foata normal form. 2883/263021 useless extension candidates. Maximal degree in co-relation 1300761. Up to 98450 conditions per place. [2020-10-16 05:16:35,209 INFO L132 encePairwiseOnDemand]: 257/268 looper letters, 269 selfloop transitions, 348 changer transitions 0/634 dead transitions. [2020-10-16 05:16:35,210 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 634 transitions, 8428 flow [2020-10-16 05:16:35,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 05:16:35,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 05:16:35,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1165 transitions. [2020-10-16 05:16:35,213 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6210021321961621 [2020-10-16 05:16:35,213 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1165 transitions. [2020-10-16 05:16:35,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1165 transitions. [2020-10-16 05:16:35,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:16:35,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1165 transitions. [2020-10-16 05:16:35,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 05:16:35,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 05:16:35,219 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 05:16:35,219 INFO L185 Difference]: Start difference. First operand has 92 places, 302 transitions, 3555 flow. Second operand 7 states and 1165 transitions. [2020-10-16 05:16:35,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 634 transitions, 8428 flow [2020-10-16 05:17:30,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 634 transitions, 8428 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 05:17:30,639 INFO L241 Difference]: Finished difference. Result has 103 places, 470 transitions, 7092 flow [2020-10-16 05:17:30,639 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=3555, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=7092, PETRI_PLACES=103, PETRI_TRANSITIONS=470} [2020-10-16 05:17:30,640 INFO L342 CegarLoopForPetriNet]: 50 programPoint places, 53 predicate places. [2020-10-16 05:17:30,640 INFO L481 AbstractCegarLoop]: Abstraction has has 103 places, 470 transitions, 7092 flow [2020-10-16 05:17:30,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 05:17:30,640 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:17:30,640 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:17:30,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 05:17:30,847 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:17:30,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:17:30,847 INFO L82 PathProgramCache]: Analyzing trace with hash -774519714, now seen corresponding path program 1 times [2020-10-16 05:17:30,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:17:30,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710899022] [2020-10-16 05:17:30,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:17:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:17:30,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 05:17:30,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710899022] [2020-10-16 05:17:30,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327211981] [2020-10-16 05:17:30,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 05:17:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:17:30,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 05:17:30,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 05:17:30,948 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 05:17:30,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 05:17:30,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-16 05:17:30,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735938476] [2020-10-16 05:17:30,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 05:17:30,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:17:30,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 05:17:30,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 05:17:30,951 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 268 [2020-10-16 05:17:30,952 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 470 transitions, 7092 flow. Second operand 5 states. [2020-10-16 05:17:30,952 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:17:30,952 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 268 [2020-10-16 05:17:30,952 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:19:13,939 INFO L129 PetriNetUnfolder]: 269594/386754 cut-off events. [2020-10-16 05:19:13,939 INFO L130 PetriNetUnfolder]: For 2499751/2508629 co-relation queries the response was YES. [2020-10-16 05:19:17,275 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1720793 conditions, 386754 events. 269594/386754 cut-off events. For 2499751/2508629 co-relation queries the response was YES. Maximal size of possible extension queue 20626. Compared 3516757 event pairs, 52634 based on Foata normal form. 53/320812 useless extension candidates. Maximal degree in co-relation 1720626. Up to 126402 conditions per place. [2020-10-16 05:19:19,954 INFO L132 encePairwiseOnDemand]: 257/268 looper letters, 295 selfloop transitions, 693 changer transitions 0/1005 dead transitions. [2020-10-16 05:19:19,954 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 1005 transitions, 16729 flow [2020-10-16 05:19:19,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 05:19:19,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 05:19:19,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1175 transitions. [2020-10-16 05:19:19,957 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6263326226012793 [2020-10-16 05:19:19,957 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1175 transitions. [2020-10-16 05:19:19,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1175 transitions. [2020-10-16 05:19:19,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:19:19,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1175 transitions. [2020-10-16 05:19:19,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 05:19:19,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 05:19:19,962 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 05:19:19,962 INFO L185 Difference]: Start difference. First operand has 103 places, 470 transitions, 7092 flow. Second operand 7 states and 1175 transitions. [2020-10-16 05:19:19,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 1005 transitions, 16729 flow [2020-10-16 05:23:36,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 1005 transitions, 16715 flow, removed 7 selfloop flow, removed 0 redundant places. [2020-10-16 05:23:37,000 INFO L241 Difference]: Finished difference. Result has 112 places, 820 transitions, 15071 flow [2020-10-16 05:23:37,001 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=268, PETRI_DIFFERENCE_MINUEND_FLOW=7086, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=345, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=15071, PETRI_PLACES=112, PETRI_TRANSITIONS=820} [2020-10-16 05:23:37,001 INFO L342 CegarLoopForPetriNet]: 50 programPoint places, 62 predicate places. [2020-10-16 05:23:37,001 INFO L481 AbstractCegarLoop]: Abstraction has has 112 places, 820 transitions, 15071 flow [2020-10-16 05:23:37,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 05:23:37,002 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:23:37,002 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2020-10-16 05:23:37,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-10-16 05:23:37,211 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:23:37,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:23:37,211 INFO L82 PathProgramCache]: Analyzing trace with hash -962119342, now seen corresponding path program 1 times [2020-10-16 05:23:37,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:23:37,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422343431] [2020-10-16 05:23:37,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:23:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:23:37,221 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:23:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 05:23:37,227 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 05:23:37,235 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 05:23:37,235 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 05:23:37,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-16 05:23:37,235 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 05:23:37,236 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 05:23:37,236 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-16 05:23:37,249 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,250 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,250 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,250 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,250 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,251 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,251 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,251 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,251 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,251 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,251 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,251 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,251 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,252 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,252 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,252 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,252 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,252 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,252 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,252 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,252 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,253 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,253 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,253 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,253 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,253 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,253 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,253 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,253 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,254 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,254 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,256 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,256 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,256 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,256 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,256 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,256 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,256 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,256 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,257 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,257 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,257 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,257 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,257 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,257 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,257 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,257 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,257 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,257 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,257 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,258 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,258 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,258 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,258 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,258 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,258 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,258 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,258 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,258 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,258 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,258 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,259 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,259 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,259 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,259 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,259 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,259 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,259 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,259 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,259 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,259 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,259 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,259 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,260 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,260 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,260 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,260 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,260 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,260 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,260 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,260 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,260 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,260 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,260 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,260 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,261 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,261 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,261 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,261 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,261 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,261 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,261 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,261 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,262 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,262 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,262 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,262 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,262 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,262 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,262 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,262 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,262 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,263 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,263 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,263 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,263 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,263 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,263 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,263 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,263 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,263 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,263 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,264 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,264 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,264 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,264 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,264 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,264 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,264 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,264 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,264 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,264 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,265 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,265 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,265 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,265 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,265 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,265 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,265 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,265 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,266 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,266 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,266 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,266 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,266 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,266 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,266 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,267 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,267 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,267 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,267 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,267 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,267 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,267 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,268 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,268 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,268 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,268 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,268 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,268 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,268 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,269 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,269 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,269 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,269 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,269 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,269 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,270 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,270 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,270 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,270 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,270 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,270 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,270 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,271 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,272 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,272 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,272 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,272 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,273 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,273 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,273 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,273 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,273 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,273 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,274 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,275 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,275 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,275 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,275 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,275 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,275 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,275 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,276 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,276 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,277 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,277 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,277 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,277 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,278 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,278 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,278 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,278 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,278 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,278 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,279 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,279 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,280 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,280 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,280 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,280 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,280 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,280 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,280 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,281 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:37,282 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-16 05:23:37,282 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:23:37,282 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:23:37,282 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:23:37,282 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:23:37,282 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:23:37,282 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:23:37,283 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:23:37,283 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:23:37,284 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 158 places, 169 transitions, 383 flow [2020-10-16 05:23:37,304 INFO L129 PetriNetUnfolder]: 27/218 cut-off events. [2020-10-16 05:23:37,304 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-16 05:23:37,307 INFO L80 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 218 events. 27/218 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 712 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 194. Up to 12 conditions per place. [2020-10-16 05:23:37,307 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 169 transitions, 383 flow [2020-10-16 05:23:37,308 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 158 places, 169 transitions, 383 flow [2020-10-16 05:23:37,309 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:23:37,309 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 169 transitions, 383 flow [2020-10-16 05:23:37,309 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 169 transitions, 383 flow [2020-10-16 05:23:37,309 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 158 places, 169 transitions, 383 flow [2020-10-16 05:23:37,328 INFO L129 PetriNetUnfolder]: 27/218 cut-off events. [2020-10-16 05:23:37,329 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-16 05:23:37,331 INFO L80 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 218 events. 27/218 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 710 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 194. Up to 12 conditions per place. [2020-10-16 05:23:37,343 INFO L117 LiptonReduction]: Number of co-enabled transitions 16900 [2020-10-16 05:23:39,374 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 10 [2020-10-16 05:23:41,827 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2020-10-16 05:23:41,964 INFO L132 LiptonReduction]: Checked pairs total: 40350 [2020-10-16 05:23:41,964 INFO L134 LiptonReduction]: Total number of compositions: 149 [2020-10-16 05:23:41,965 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4656 [2020-10-16 05:23:41,967 INFO L129 PetriNetUnfolder]: 2/18 cut-off events. [2020-10-16 05:23:41,967 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 05:23:41,967 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:23:41,967 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:23:41,967 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:23:41,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:23:41,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1326642064, now seen corresponding path program 1 times [2020-10-16 05:23:41,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:23:41,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100735882] [2020-10-16 05:23:41,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:23:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:23:41,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:23:41,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100735882] [2020-10-16 05:23:41,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:23:41,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:23:41,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715927853] [2020-10-16 05:23:41,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:23:41,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:23:41,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:23:41,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:23:41,995 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 318 [2020-10-16 05:23:41,996 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 60 transitions, 165 flow. Second operand 4 states. [2020-10-16 05:23:41,996 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:23:41,996 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 318 [2020-10-16 05:23:41,997 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:23:46,148 INFO L129 PetriNetUnfolder]: 24619/33731 cut-off events. [2020-10-16 05:23:46,148 INFO L130 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2020-10-16 05:23:46,315 INFO L80 FinitePrefix]: Finished finitePrefix Result has 62881 conditions, 33731 events. 24619/33731 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 1991. Compared 218110 event pairs, 7604 based on Foata normal form. 5077/24392 useless extension candidates. Maximal degree in co-relation 62831. Up to 15370 conditions per place. [2020-10-16 05:23:46,475 INFO L132 encePairwiseOnDemand]: 312/318 looper letters, 39 selfloop transitions, 4 changer transitions 0/77 dead transitions. [2020-10-16 05:23:46,475 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 77 transitions, 285 flow [2020-10-16 05:23:46,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:23:46,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:23:46,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 814 transitions. [2020-10-16 05:23:46,478 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.639937106918239 [2020-10-16 05:23:46,478 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 814 transitions. [2020-10-16 05:23:46,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 814 transitions. [2020-10-16 05:23:46,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:23:46,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 814 transitions. [2020-10-16 05:23:46,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:23:46,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:23:46,482 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:23:46,483 INFO L185 Difference]: Start difference. First operand has 61 places, 60 transitions, 165 flow. Second operand 4 states and 814 transitions. [2020-10-16 05:23:46,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 77 transitions, 285 flow [2020-10-16 05:23:46,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 77 transitions, 265 flow, removed 10 selfloop flow, removed 0 redundant places. [2020-10-16 05:23:46,484 INFO L241 Difference]: Finished difference. Result has 64 places, 60 transitions, 160 flow [2020-10-16 05:23:46,484 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2020-10-16 05:23:46,484 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 3 predicate places. [2020-10-16 05:23:46,484 INFO L481 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 160 flow [2020-10-16 05:23:46,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:23:46,485 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:23:46,485 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:23:46,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-16 05:23:46,485 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:23:46,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:23:46,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1823767132, now seen corresponding path program 1 times [2020-10-16 05:23:46,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:23:46,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306455703] [2020-10-16 05:23:46,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:23:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:23:46,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:23:46,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306455703] [2020-10-16 05:23:46,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:23:46,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:23:46,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185919501] [2020-10-16 05:23:46,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:23:46,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:23:46,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:23:46,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:23:46,506 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 318 [2020-10-16 05:23:46,506 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 160 flow. Second operand 3 states. [2020-10-16 05:23:46,506 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:23:46,506 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 318 [2020-10-16 05:23:46,506 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:23:46,524 INFO L129 PetriNetUnfolder]: 9/70 cut-off events. [2020-10-16 05:23:46,524 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2020-10-16 05:23:46,524 INFO L80 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 70 events. 9/70 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 172 event pairs, 0 based on Foata normal form. 1/57 useless extension candidates. Maximal degree in co-relation 87. Up to 8 conditions per place. [2020-10-16 05:23:46,525 INFO L132 encePairwiseOnDemand]: 315/318 looper letters, 7 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2020-10-16 05:23:46,525 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 60 transitions, 175 flow [2020-10-16 05:23:46,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:23:46,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:23:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 745 transitions. [2020-10-16 05:23:46,528 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7809224318658281 [2020-10-16 05:23:46,528 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 745 transitions. [2020-10-16 05:23:46,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 745 transitions. [2020-10-16 05:23:46,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:23:46,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 745 transitions. [2020-10-16 05:23:46,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:23:46,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:23:46,531 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:23:46,531 INFO L185 Difference]: Start difference. First operand has 64 places, 60 transitions, 160 flow. Second operand 3 states and 745 transitions. [2020-10-16 05:23:46,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 60 transitions, 175 flow [2020-10-16 05:23:46,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 60 transitions, 169 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-16 05:23:46,533 INFO L241 Difference]: Finished difference. Result has 63 places, 59 transitions, 153 flow [2020-10-16 05:23:46,533 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=63, PETRI_TRANSITIONS=59} [2020-10-16 05:23:46,533 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 2 predicate places. [2020-10-16 05:23:46,533 INFO L481 AbstractCegarLoop]: Abstraction has has 63 places, 59 transitions, 153 flow [2020-10-16 05:23:46,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:23:46,533 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:23:46,534 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:23:46,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-16 05:23:46,534 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:23:46,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:23:46,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1022335754, now seen corresponding path program 1 times [2020-10-16 05:23:46,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:23:46,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434243886] [2020-10-16 05:23:46,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:23:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:23:46,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 05:23:46,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434243886] [2020-10-16 05:23:46,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:23:46,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:23:46,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721671788] [2020-10-16 05:23:46,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:23:46,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:23:46,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:23:46,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:23:46,570 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 318 [2020-10-16 05:23:46,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 59 transitions, 153 flow. Second operand 4 states. [2020-10-16 05:23:46,571 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:23:46,571 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 318 [2020-10-16 05:23:46,571 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:23:48,627 INFO L129 PetriNetUnfolder]: 24793/33752 cut-off events. [2020-10-16 05:23:48,627 INFO L130 PetriNetUnfolder]: For 2007/2007 co-relation queries the response was YES. [2020-10-16 05:23:48,837 INFO L80 FinitePrefix]: Finished finitePrefix Result has 67242 conditions, 33752 events. 24793/33752 cut-off events. For 2007/2007 co-relation queries the response was YES. Maximal size of possible extension queue 2035. Compared 219732 event pairs, 7831 based on Foata normal form. 0/19132 useless extension candidates. Maximal degree in co-relation 67186. Up to 15602 conditions per place. [2020-10-16 05:23:49,037 INFO L132 encePairwiseOnDemand]: 313/318 looper letters, 39 selfloop transitions, 4 changer transitions 0/77 dead transitions. [2020-10-16 05:23:49,037 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 77 transitions, 279 flow [2020-10-16 05:23:49,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:23:49,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:23:49,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 804 transitions. [2020-10-16 05:23:49,039 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6320754716981132 [2020-10-16 05:23:49,039 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 804 transitions. [2020-10-16 05:23:49,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 804 transitions. [2020-10-16 05:23:49,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:23:49,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 804 transitions. [2020-10-16 05:23:49,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:23:49,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:23:49,041 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:23:49,041 INFO L185 Difference]: Start difference. First operand has 63 places, 59 transitions, 153 flow. Second operand 4 states and 804 transitions. [2020-10-16 05:23:49,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 77 transitions, 279 flow [2020-10-16 05:23:49,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 77 transitions, 275 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:23:49,043 INFO L241 Difference]: Finished difference. Result has 65 places, 60 transitions, 166 flow [2020-10-16 05:23:49,043 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=318, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=65, PETRI_TRANSITIONS=60} [2020-10-16 05:23:49,043 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 4 predicate places. [2020-10-16 05:23:49,044 INFO L481 AbstractCegarLoop]: Abstraction has has 65 places, 60 transitions, 166 flow [2020-10-16 05:23:49,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:23:49,044 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:23:49,044 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:23:49,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-16 05:23:49,044 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:23:49,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:23:49,044 INFO L82 PathProgramCache]: Analyzing trace with hash -329880761, now seen corresponding path program 1 times [2020-10-16 05:23:49,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:23:49,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958648315] [2020-10-16 05:23:49,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:23:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:23:49,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:23:49,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958648315] [2020-10-16 05:23:49,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:23:49,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:23:49,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315709862] [2020-10-16 05:23:49,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 05:23:49,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:23:49,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 05:23:49,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 05:23:49,089 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 318 [2020-10-16 05:23:49,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 60 transitions, 166 flow. Second operand 5 states. [2020-10-16 05:23:49,090 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:23:49,090 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 318 [2020-10-16 05:23:49,090 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2020-10-16 05:25:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 05:25:13,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-16 05:25:13,176 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-16 05:25:13,179 WARN L235 ceAbstractionStarter]: Timeout [2020-10-16 05:25:13,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:25:13 BasicIcfg [2020-10-16 05:25:13,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 05:25:13,184 INFO L168 Benchmark]: Toolchain (without parser) took 728928.83 ms. Allocated memory was 250.6 MB in the beginning and 5.7 GB in the end (delta: 5.5 GB). Free memory was 206.4 MB in the beginning and 2.7 GB in the end (delta: -2.5 GB). Peak memory consumption was 7.6 GB. Max. memory is 14.2 GB. [2020-10-16 05:25:13,184 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:25:13,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 923.05 ms. Allocated memory was 250.6 MB in the beginning and 315.6 MB in the end (delta: 65.0 MB). Free memory was 206.4 MB in the beginning and 243.6 MB in the end (delta: -37.2 MB). Peak memory consumption was 37.8 MB. Max. memory is 14.2 GB. [2020-10-16 05:25:13,185 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.58 ms. Allocated memory is still 315.6 MB. Free memory was 243.6 MB in the beginning and 241.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 05:25:13,185 INFO L168 Benchmark]: Boogie Preprocessor took 28.78 ms. Allocated memory is still 315.6 MB. Free memory was 241.1 MB in the beginning and 238.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 05:25:13,186 INFO L168 Benchmark]: RCFGBuilder took 500.68 ms. Allocated memory is still 315.6 MB. Free memory was 238.5 MB in the beginning and 211.4 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 14.2 GB. [2020-10-16 05:25:13,186 INFO L168 Benchmark]: TraceAbstraction took 727418.15 ms. Allocated memory was 315.6 MB in the beginning and 5.7 GB in the end (delta: 5.4 GB). Free memory was 211.4 MB in the beginning and 2.7 GB in the end (delta: -2.5 GB). Peak memory consumption was 7.5 GB. Max. memory is 14.2 GB. [2020-10-16 05:25:13,189 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 923.05 ms. Allocated memory was 250.6 MB in the beginning and 315.6 MB in the end (delta: 65.0 MB). Free memory was 206.4 MB in the beginning and 243.6 MB in the end (delta: -37.2 MB). Peak memory consumption was 37.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 52.58 ms. Allocated memory is still 315.6 MB. Free memory was 243.6 MB in the beginning and 241.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 28.78 ms. Allocated memory is still 315.6 MB. Free memory was 241.1 MB in the beginning and 238.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 500.68 ms. Allocated memory is still 315.6 MB. Free memory was 238.5 MB in the beginning and 211.4 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 14.2 GB. * TraceAbstraction took 727418.15 ms. Allocated memory was 315.6 MB in the beginning and 5.7 GB in the end (delta: 5.4 GB). Free memory was 211.4 MB in the beginning and 2.7 GB in the end (delta: -2.5 GB). Peak memory consumption was 7.5 GB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 359 VarBasedMoverChecksPositive, 4 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 58 PlacesBefore, 12 PlacesAfterwards, 61 TransitionsBefore, 10 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 7 ConcurrentYvCompositions, 5 ChoiceCompositions, 68 TotalNumberOfCompositions, 476 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1705 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 16 SemBasedMoverChecksPositive, 25 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 200 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 83 PlacesBefore, 28 PlacesAfterwards, 88 TransitionsBefore, 27 TransitionsAfterwards, 2548 CoEnabledTransitionPairs, 6 FixpointIterations, 22 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 13 ConcurrentYvCompositions, 6 ChoiceCompositions, 80 TotalNumberOfCompositions, 6169 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3933 VarBasedMoverChecksPositive, 70 VarBasedMoverChecksNegative, 32 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 372 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.1s, 108 PlacesBefore, 39 PlacesAfterwards, 115 TransitionsBefore, 38 TransitionsAfterwards, 5928 CoEnabledTransitionPairs, 5 FixpointIterations, 22 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 15 ConcurrentYvCompositions, 8 ChoiceCompositions, 104 TotalNumberOfCompositions, 13601 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 6450 VarBasedMoverChecksPositive, 134 VarBasedMoverChecksNegative, 75 SemBasedMoverChecksPositive, 59 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 411 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.7s, 133 PlacesBefore, 50 PlacesAfterwards, 142 TransitionsBefore, 49 TransitionsAfterwards, 10712 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 20 ConcurrentYvCompositions, 10 ChoiceCompositions, 126 TotalNumberOfCompositions, 28037 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 11313 VarBasedMoverChecksPositive, 184 VarBasedMoverChecksNegative, 107 SemBasedMoverChecksPositive, 77 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 1301 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.6s, 158 PlacesBefore, 61 PlacesAfterwards, 169 TransitionsBefore, 60 TransitionsAfterwards, 16900 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 87 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 26 ConcurrentYvCompositions, 12 ChoiceCompositions, 149 TotalNumberOfCompositions, 40350 MoverChecksTotal - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 987). Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (5states, 175/318 universal loopers) in iteration 4,while PetriNetUnfolder was constructing finite prefix that currently has 1118074 conditions, 519800 events (405231/519799 cut-off events. For 54558/54558 co-relation queries the response was YES. Maximal size of possible extension queue 28869. Compared 3875304 event pairs, 58341 based on Foata normal form. 0/398525 useless extension candidates. Maximal degree in co-relation 1118050. Up to 137468 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 5 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 727.1s, OverallIterations: 27, TraceHistogramMax: 5, AutomataDifference: 710.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.2s, HoareTripleCheckerStatistics: 342 SDtfs, 1059 SDslu, 240 SDs, 0 SdLazy, 2694 SolverSat, 100 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15071occurred in iteration=11, 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, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 329 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 259 ConstructedInterpolants, 0 QuantifiedInterpolants, 10639 SizeOfPredicates, 5 NumberOfNonLiveVariables, 463 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 28 InterpolantComputations, 19 PerfectInterpolantSequences, 34/52 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown