/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.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2014.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 01:47:58,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 01:47:58,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 01:47:58,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 01:47:58,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 01:47:58,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 01:47:58,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 01:47:58,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 01:47:58,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 01:47:58,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 01:47:58,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 01:47:58,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 01:47:58,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 01:47:58,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 01:47:58,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 01:47:58,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 01:47:58,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 01:47:58,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 01:47:58,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 01:47:58,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 01:47:58,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 01:47:58,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 01:47:58,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 01:47:58,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 01:47:58,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 01:47:58,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 01:47:58,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 01:47:58,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 01:47:58,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 01:47:58,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 01:47:58,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 01:47:58,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 01:47:58,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 01:47:58,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 01:47:58,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 01:47:58,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 01:47:58,604 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.epf [2020-10-16 01:47:58,642 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 01:47:58,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 01:47:58,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 01:47:58,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 01:47:58,644 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 01:47:58,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 01:47:58,644 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 01:47:58,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 01:47:58,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 01:47:58,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 01:47:58,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 01:47:58,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 01:47:58,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 01:47:58,647 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 01:47:58,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 01:47:58,647 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 01:47:58,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 01:47:58,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 01:47:58,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 01:47:58,648 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 01:47:58,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 01:47:58,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 01:47:58,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 01:47:58,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 01:47:58,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 01:47:58,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 01:47:58,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 01:47:58,650 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 01:47:58,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 01:47:58,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 01:47:58,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 01:47:58,933 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 01:47:58,934 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 01:47:58,935 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 01:47:58,935 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2014.i [2020-10-16 01:47:58,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a80ebd855/1d113d11617543a9966c108042d5113f/FLAG796d0d8ae [2020-10-16 01:47:59,488 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 01:47:59,489 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2014.i [2020-10-16 01:47:59,506 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a80ebd855/1d113d11617543a9966c108042d5113f/FLAG796d0d8ae [2020-10-16 01:47:59,837 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a80ebd855/1d113d11617543a9966c108042d5113f [2020-10-16 01:47:59,845 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 01:47:59,846 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 01:47:59,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 01:47:59,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 01:47:59,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 01:47:59,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:47:59" (1/1) ... [2020-10-16 01:47:59,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15021b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:47:59, skipping insertion in model container [2020-10-16 01:47:59,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:47:59" (1/1) ... [2020-10-16 01:47:59,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 01:47:59,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 01:48:00,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 01:48:00,348 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 01:48:00,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 01:48:00,486 INFO L208 MainTranslator]: Completed translation [2020-10-16 01:48:00,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:00 WrapperNode [2020-10-16 01:48:00,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 01:48:00,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 01:48:00,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 01:48:00,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 01:48:00,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:00" (1/1) ... [2020-10-16 01:48:00,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:00" (1/1) ... [2020-10-16 01:48:00,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 01:48:00,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 01:48:00,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 01:48:00,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 01:48:00,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:00" (1/1) ... [2020-10-16 01:48:00,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:00" (1/1) ... [2020-10-16 01:48:00,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:00" (1/1) ... [2020-10-16 01:48:00,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:00" (1/1) ... [2020-10-16 01:48:00,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:00" (1/1) ... [2020-10-16 01:48:00,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:00" (1/1) ... [2020-10-16 01:48:00,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:00" (1/1) ... [2020-10-16 01:48:00,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 01:48:00,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 01:48:00,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 01:48:00,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 01:48:00,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:00" (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 01:48:00,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 01:48:00,627 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 01:48:00,628 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2020-10-16 01:48:00,628 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2020-10-16 01:48:00,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 01:48:00,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 01:48:00,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 01:48:00,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 01:48:00,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 01:48:00,630 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 01:48:00,927 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 01:48:00,927 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-10-16 01:48:00,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:48:00 BoogieIcfgContainer [2020-10-16 01:48:00,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 01:48:00,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 01:48:00,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 01:48:00,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 01:48:00,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:47:59" (1/3) ... [2020-10-16 01:48:00,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7349f98f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:48:00, skipping insertion in model container [2020-10-16 01:48:00,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:48:00" (2/3) ... [2020-10-16 01:48:00,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7349f98f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:48:00, skipping insertion in model container [2020-10-16 01:48:00,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:48:00" (3/3) ... [2020-10-16 01:48:00,937 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2014.i [2020-10-16 01:48:00,948 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 01:48:00,954 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 01:48:00,954 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 01:48:00,977 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,977 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,978 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,978 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,978 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,978 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,979 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,979 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,979 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,979 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,980 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,980 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,980 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,981 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,981 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,981 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,984 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,985 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,985 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,985 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,986 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,986 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,986 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:00,986 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:01,008 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 01:48:01,024 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 01:48:01,024 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 01:48:01,025 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 01:48:01,025 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 01:48:01,025 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 01:48:01,025 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 01:48:01,025 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 01:48:01,025 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 01:48:01,035 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 50 places, 50 transitions, 105 flow [2020-10-16 01:48:01,071 INFO L129 PetriNetUnfolder]: 4/59 cut-off events. [2020-10-16 01:48:01,071 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:48:01,076 INFO L80 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 59 events. 4/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 30. Up to 4 conditions per place. [2020-10-16 01:48:01,076 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 50 transitions, 105 flow [2020-10-16 01:48:01,082 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 50 transitions, 105 flow [2020-10-16 01:48:01,085 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 01:48:01,087 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 50 transitions, 105 flow [2020-10-16 01:48:01,090 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 50 transitions, 105 flow [2020-10-16 01:48:01,090 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 50 places, 50 transitions, 105 flow [2020-10-16 01:48:01,110 INFO L129 PetriNetUnfolder]: 4/59 cut-off events. [2020-10-16 01:48:01,110 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:48:01,111 INFO L80 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 59 events. 4/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 30. Up to 4 conditions per place. [2020-10-16 01:48:01,113 INFO L117 LiptonReduction]: Number of co-enabled transitions 392 [2020-10-16 01:48:02,171 INFO L132 LiptonReduction]: Checked pairs total: 364 [2020-10-16 01:48:02,172 INFO L134 LiptonReduction]: Total number of compositions: 53 [2020-10-16 01:48:02,174 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1091 [2020-10-16 01:48:02,180 INFO L129 PetriNetUnfolder]: 0/4 cut-off events. [2020-10-16 01:48:02,181 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:48:02,181 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:02,182 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2020-10-16 01:48:02,182 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:48:02,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:02,188 INFO L82 PathProgramCache]: Analyzing trace with hash 6946921, now seen corresponding path program 1 times [2020-10-16 01:48:02,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:02,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828652198] [2020-10-16 01:48:02,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:48:02,377 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 01:48:02,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828652198] [2020-10-16 01:48:02,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:48:02,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 01:48:02,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543935656] [2020-10-16 01:48:02,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 01:48:02,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:48:02,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 01:48:02,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 01:48:02,407 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 103 [2020-10-16 01:48:02,409 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 8 transitions, 21 flow. Second operand 3 states. [2020-10-16 01:48:02,409 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:48:02,410 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 103 [2020-10-16 01:48:02,411 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:48:02,429 INFO L129 PetriNetUnfolder]: 0/9 cut-off events. [2020-10-16 01:48:02,430 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:48:02,430 INFO L80 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 9 events. 0/9 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 7 event pairs, 0 based on Foata normal form. 0/7 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-10-16 01:48:02,431 INFO L132 encePairwiseOnDemand]: 100/103 looper letters, 0 selfloop transitions, 2 changer transitions 1/7 dead transitions. [2020-10-16 01:48:02,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 7 transitions, 23 flow [2020-10-16 01:48:02,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 01:48:02,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 01:48:02,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 207 transitions. [2020-10-16 01:48:02,447 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6699029126213593 [2020-10-16 01:48:02,448 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 207 transitions. [2020-10-16 01:48:02,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 207 transitions. [2020-10-16 01:48:02,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:48:02,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 207 transitions. [2020-10-16 01:48:02,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 01:48:02,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 01:48:02,462 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 01:48:02,464 INFO L185 Difference]: Start difference. First operand has 11 places, 8 transitions, 21 flow. Second operand 3 states and 207 transitions. [2020-10-16 01:48:02,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 7 transitions, 23 flow [2020-10-16 01:48:02,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 7 transitions, 23 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 01:48:02,469 INFO L241 Difference]: Finished difference. Result has 12 places, 6 transitions, 21 flow [2020-10-16 01:48:02,471 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=19, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=21, PETRI_PLACES=12, PETRI_TRANSITIONS=6} [2020-10-16 01:48:02,472 INFO L342 CegarLoopForPetriNet]: 11 programPoint places, 1 predicate places. [2020-10-16 01:48:02,472 INFO L481 AbstractCegarLoop]: Abstraction has has 12 places, 6 transitions, 21 flow [2020-10-16 01:48:02,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 01:48:02,473 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:02,473 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2020-10-16 01:48:02,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 01:48:02,474 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:48:02,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:02,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1913958713, now seen corresponding path program 1 times [2020-10-16 01:48:02,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:02,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054874329] [2020-10-16 01:48:02,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 01:48:02,499 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 01:48:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 01:48:02,514 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 01:48:02,540 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 01:48:02,540 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 01:48:02,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 01:48:02,544 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 01:48:02,545 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 01:48:02,546 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-16 01:48:02,555 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,555 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,556 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,556 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,556 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,557 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,557 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,557 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,557 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,557 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,558 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,558 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,558 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,559 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,559 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,559 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,560 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,560 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,560 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,560 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,560 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,561 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,561 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,561 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,561 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,561 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,562 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,562 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,566 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,566 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,567 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,567 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,567 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,567 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,568 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,568 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,568 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,568 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,568 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,568 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,570 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,570 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,570 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,571 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,571 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,571 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,571 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,572 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:02,573 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 01:48:02,573 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 01:48:02,574 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 01:48:02,574 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 01:48:02,574 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 01:48:02,574 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 01:48:02,574 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 01:48:02,574 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 01:48:02,574 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 01:48:02,576 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 66 places, 65 transitions, 142 flow [2020-10-16 01:48:02,607 INFO L129 PetriNetUnfolder]: 6/87 cut-off events. [2020-10-16 01:48:02,608 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 01:48:02,611 INFO L80 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 87 events. 6/87 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 133 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 60. Up to 6 conditions per place. [2020-10-16 01:48:02,611 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 65 transitions, 142 flow [2020-10-16 01:48:02,612 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 65 transitions, 142 flow [2020-10-16 01:48:02,612 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 01:48:02,613 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 65 transitions, 142 flow [2020-10-16 01:48:02,613 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 65 transitions, 142 flow [2020-10-16 01:48:02,613 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 66 places, 65 transitions, 142 flow [2020-10-16 01:48:02,644 INFO L129 PetriNetUnfolder]: 6/87 cut-off events. [2020-10-16 01:48:02,645 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 01:48:02,646 INFO L80 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 87 events. 6/87 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 141 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 60. Up to 6 conditions per place. [2020-10-16 01:48:02,648 INFO L117 LiptonReduction]: Number of co-enabled transitions 1204 [2020-10-16 01:48:03,675 INFO L132 LiptonReduction]: Checked pairs total: 1856 [2020-10-16 01:48:03,675 INFO L134 LiptonReduction]: Total number of compositions: 63 [2020-10-16 01:48:03,676 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1064 [2020-10-16 01:48:03,678 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2020-10-16 01:48:03,679 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:48:03,679 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:03,679 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 01:48:03,679 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:48:03,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:03,680 INFO L82 PathProgramCache]: Analyzing trace with hash 351183459, now seen corresponding path program 1 times [2020-10-16 01:48:03,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:03,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650211810] [2020-10-16 01:48:03,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:48:03,721 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 01:48:03,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650211810] [2020-10-16 01:48:03,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:48:03,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 01:48:03,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465256170] [2020-10-16 01:48:03,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:48:03,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:48:03,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:48:03,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:48:03,725 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 128 [2020-10-16 01:48:03,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 46 flow. Second operand 4 states. [2020-10-16 01:48:03,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:48:03,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 128 [2020-10-16 01:48:03,726 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:48:03,763 INFO L129 PetriNetUnfolder]: 9/40 cut-off events. [2020-10-16 01:48:03,764 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 01:48:03,764 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 40 events. 9/40 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 82 event pairs, 2 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 56. Up to 15 conditions per place. [2020-10-16 01:48:03,765 INFO L132 encePairwiseOnDemand]: 120/128 looper letters, 12 selfloop transitions, 5 changer transitions 0/24 dead transitions. [2020-10-16 01:48:03,765 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 24 transitions, 94 flow [2020-10-16 01:48:03,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 01:48:03,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 01:48:03,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 334 transitions. [2020-10-16 01:48:03,769 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.65234375 [2020-10-16 01:48:03,769 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 334 transitions. [2020-10-16 01:48:03,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 334 transitions. [2020-10-16 01:48:03,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:48:03,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 334 transitions. [2020-10-16 01:48:03,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 01:48:03,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 01:48:03,773 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 01:48:03,773 INFO L185 Difference]: Start difference. First operand has 21 places, 17 transitions, 46 flow. Second operand 4 states and 334 transitions. [2020-10-16 01:48:03,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 24 transitions, 94 flow [2020-10-16 01:48:03,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 24 transitions, 92 flow, removed 1 selfloop flow, removed 0 redundant places. [2020-10-16 01:48:03,775 INFO L241 Difference]: Finished difference. Result has 26 places, 20 transitions, 79 flow [2020-10-16 01:48:03,776 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=79, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2020-10-16 01:48:03,776 INFO L342 CegarLoopForPetriNet]: 21 programPoint places, 5 predicate places. [2020-10-16 01:48:03,776 INFO L481 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 79 flow [2020-10-16 01:48:03,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:48:03,776 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:03,776 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-10-16 01:48:03,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 01:48:03,777 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:48:03,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:03,777 INFO L82 PathProgramCache]: Analyzing trace with hash -940648467, now seen corresponding path program 1 times [2020-10-16 01:48:03,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:03,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113733782] [2020-10-16 01:48:03,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 01:48:03,795 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 01:48:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 01:48:03,808 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 01:48:03,814 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 01:48:03,814 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 01:48:03,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 01:48:03,814 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 01:48:03,815 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 01:48:03,816 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-16 01:48:03,825 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,825 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,825 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,825 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,826 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,826 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,826 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,826 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,826 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,826 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,826 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,827 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,827 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,827 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,827 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,827 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,827 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,827 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,828 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,828 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,828 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,828 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,828 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,828 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,828 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,828 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,828 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,829 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,829 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,830 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,830 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,830 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,830 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,831 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,831 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,832 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,832 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,832 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,832 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,833 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,833 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,833 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,833 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,833 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,833 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,834 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,834 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,834 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,834 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,835 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,835 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,835 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,835 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,835 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,835 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,836 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,843 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,843 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,844 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,844 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,844 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,844 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,844 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,845 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,846 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,846 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,846 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,846 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,846 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,847 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,847 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,847 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:03,848 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 01:48:03,848 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 01:48:03,848 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 01:48:03,849 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 01:48:03,849 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 01:48:03,849 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 01:48:03,849 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 01:48:03,849 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 01:48:03,849 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 01:48:03,852 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 181 flow [2020-10-16 01:48:03,865 INFO L129 PetriNetUnfolder]: 8/115 cut-off events. [2020-10-16 01:48:03,865 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-16 01:48:03,866 INFO L80 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 115 events. 8/115 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 209 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 91. Up to 8 conditions per place. [2020-10-16 01:48:03,867 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 80 transitions, 181 flow [2020-10-16 01:48:03,868 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 80 transitions, 181 flow [2020-10-16 01:48:03,868 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 01:48:03,868 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 80 transitions, 181 flow [2020-10-16 01:48:03,868 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 80 transitions, 181 flow [2020-10-16 01:48:03,868 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 181 flow [2020-10-16 01:48:03,881 INFO L129 PetriNetUnfolder]: 8/115 cut-off events. [2020-10-16 01:48:03,881 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-16 01:48:03,882 INFO L80 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 115 events. 8/115 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 215 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 91. Up to 8 conditions per place. [2020-10-16 01:48:03,885 INFO L117 LiptonReduction]: Number of co-enabled transitions 2436 [2020-10-16 01:48:05,138 INFO L132 LiptonReduction]: Checked pairs total: 4241 [2020-10-16 01:48:05,138 INFO L134 LiptonReduction]: Total number of compositions: 81 [2020-10-16 01:48:05,138 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1270 [2020-10-16 01:48:05,140 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2020-10-16 01:48:05,140 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:48:05,140 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:05,140 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 01:48:05,141 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:48:05,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:05,142 INFO L82 PathProgramCache]: Analyzing trace with hash 518765162, now seen corresponding path program 1 times [2020-10-16 01:48:05,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:05,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015545124] [2020-10-16 01:48:05,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:48:05,197 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 01:48:05,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015545124] [2020-10-16 01:48:05,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:48:05,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 01:48:05,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034246942] [2020-10-16 01:48:05,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:48:05,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:48:05,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:48:05,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:48:05,200 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 161 [2020-10-16 01:48:05,201 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 67 flow. Second operand 4 states. [2020-10-16 01:48:05,201 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:48:05,201 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 161 [2020-10-16 01:48:05,201 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:48:05,372 INFO L129 PetriNetUnfolder]: 125/286 cut-off events. [2020-10-16 01:48:05,372 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-16 01:48:05,373 INFO L80 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 286 events. 125/286 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1436 event pairs, 48 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 538. Up to 120 conditions per place. [2020-10-16 01:48:05,376 INFO L132 encePairwiseOnDemand]: 149/161 looper letters, 24 selfloop transitions, 10 changer transitions 0/42 dead transitions. [2020-10-16 01:48:05,376 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 42 transitions, 173 flow [2020-10-16 01:48:05,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 01:48:05,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 01:48:05,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 427 transitions. [2020-10-16 01:48:05,380 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6630434782608695 [2020-10-16 01:48:05,380 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 427 transitions. [2020-10-16 01:48:05,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 427 transitions. [2020-10-16 01:48:05,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:48:05,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 427 transitions. [2020-10-16 01:48:05,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 01:48:05,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 01:48:05,385 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 01:48:05,385 INFO L185 Difference]: Start difference. First operand has 28 places, 23 transitions, 67 flow. Second operand 4 states and 427 transitions. [2020-10-16 01:48:05,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 42 transitions, 173 flow [2020-10-16 01:48:05,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 42 transitions, 167 flow, removed 3 selfloop flow, removed 0 redundant places. [2020-10-16 01:48:05,387 INFO L241 Difference]: Finished difference. Result has 33 places, 30 transitions, 129 flow [2020-10-16 01:48:05,387 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=129, PETRI_PLACES=33, PETRI_TRANSITIONS=30} [2020-10-16 01:48:05,388 INFO L342 CegarLoopForPetriNet]: 28 programPoint places, 5 predicate places. [2020-10-16 01:48:05,388 INFO L481 AbstractCegarLoop]: Abstraction has has 33 places, 30 transitions, 129 flow [2020-10-16 01:48:05,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:48:05,388 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:05,388 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:48:05,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 01:48:05,389 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:48:05,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:05,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1844302735, now seen corresponding path program 1 times [2020-10-16 01:48:05,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:05,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745154612] [2020-10-16 01:48:05,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:48:05,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:48:05,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745154612] [2020-10-16 01:48:05,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:48:05,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 01:48:05,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541914987] [2020-10-16 01:48:05,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 01:48:05,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:48:05,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 01:48:05,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-16 01:48:05,446 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 161 [2020-10-16 01:48:05,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 129 flow. Second operand 5 states. [2020-10-16 01:48:05,447 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:48:05,447 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 161 [2020-10-16 01:48:05,447 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:48:05,555 INFO L129 PetriNetUnfolder]: 103/235 cut-off events. [2020-10-16 01:48:05,555 INFO L130 PetriNetUnfolder]: For 143/219 co-relation queries the response was YES. [2020-10-16 01:48:05,556 INFO L80 FinitePrefix]: Finished finitePrefix Result has 704 conditions, 235 events. 103/235 cut-off events. For 143/219 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 988 event pairs, 19 based on Foata normal form. 29/251 useless extension candidates. Maximal degree in co-relation 680. Up to 87 conditions per place. [2020-10-16 01:48:05,558 INFO L132 encePairwiseOnDemand]: 151/161 looper letters, 15 selfloop transitions, 28 changer transitions 0/51 dead transitions. [2020-10-16 01:48:05,558 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 51 transitions, 299 flow [2020-10-16 01:48:05,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 01:48:05,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 01:48:05,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 514 transitions. [2020-10-16 01:48:05,561 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6385093167701863 [2020-10-16 01:48:05,561 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 514 transitions. [2020-10-16 01:48:05,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 514 transitions. [2020-10-16 01:48:05,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:48:05,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 514 transitions. [2020-10-16 01:48:05,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 01:48:05,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 01:48:05,565 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 01:48:05,565 INFO L185 Difference]: Start difference. First operand has 33 places, 30 transitions, 129 flow. Second operand 5 states and 514 transitions. [2020-10-16 01:48:05,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 51 transitions, 299 flow [2020-10-16 01:48:05,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 51 transitions, 299 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 01:48:05,568 INFO L241 Difference]: Finished difference. Result has 38 places, 45 transitions, 293 flow [2020-10-16 01:48:05,568 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=293, PETRI_PLACES=38, PETRI_TRANSITIONS=45} [2020-10-16 01:48:05,569 INFO L342 CegarLoopForPetriNet]: 28 programPoint places, 10 predicate places. [2020-10-16 01:48:05,569 INFO L481 AbstractCegarLoop]: Abstraction has has 38 places, 45 transitions, 293 flow [2020-10-16 01:48:05,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 01:48:05,569 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:05,569 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-10-16 01:48:05,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 01:48:05,570 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:48:05,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:05,570 INFO L82 PathProgramCache]: Analyzing trace with hash 951423672, now seen corresponding path program 1 times [2020-10-16 01:48:05,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:05,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004287048] [2020-10-16 01:48:05,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 01:48:05,585 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 01:48:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 01:48:05,597 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 01:48:05,602 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 01:48:05,603 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 01:48:05,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 01:48:05,603 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 01:48:05,604 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 01:48:05,604 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-16 01:48:05,611 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,612 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,612 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,612 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,612 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,612 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,612 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,613 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,613 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,613 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,613 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,613 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,613 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,614 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,614 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,614 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,614 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,614 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,614 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,615 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,615 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,615 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,615 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,615 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,615 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,616 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,616 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,616 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,616 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,616 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,616 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,617 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,617 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,617 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,617 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,617 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,618 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,618 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,618 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,618 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,618 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,618 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,618 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,619 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,619 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,619 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,619 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,619 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,620 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,620 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,620 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,620 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,620 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,621 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,621 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,621 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,621 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,621 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,621 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,621 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,622 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,622 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,622 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,622 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,623 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,623 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,623 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,623 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,623 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,623 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,624 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,624 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,628 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,628 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,628 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,628 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,629 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,629 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,629 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,629 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,632 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,632 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,633 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,633 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,633 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,633 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,633 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,633 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,644 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,645 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,645 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,645 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,645 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,645 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,645 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,645 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:05,647 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 01:48:05,647 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 01:48:05,647 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 01:48:05,647 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 01:48:05,647 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 01:48:05,647 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 01:48:05,647 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 01:48:05,647 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 01:48:05,648 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 01:48:05,650 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 98 places, 95 transitions, 222 flow [2020-10-16 01:48:05,664 INFO L129 PetriNetUnfolder]: 10/143 cut-off events. [2020-10-16 01:48:05,665 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-16 01:48:05,666 INFO L80 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 143 events. 10/143 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 275 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 123. Up to 10 conditions per place. [2020-10-16 01:48:05,666 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 95 transitions, 222 flow [2020-10-16 01:48:05,667 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 95 transitions, 222 flow [2020-10-16 01:48:05,667 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 01:48:05,667 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 95 transitions, 222 flow [2020-10-16 01:48:05,667 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 95 transitions, 222 flow [2020-10-16 01:48:05,668 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 98 places, 95 transitions, 222 flow [2020-10-16 01:48:05,681 INFO L129 PetriNetUnfolder]: 10/143 cut-off events. [2020-10-16 01:48:05,682 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-16 01:48:05,682 INFO L80 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 143 events. 10/143 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 289 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 123. Up to 10 conditions per place. [2020-10-16 01:48:05,687 INFO L117 LiptonReduction]: Number of co-enabled transitions 4088 [2020-10-16 01:48:07,048 INFO L132 LiptonReduction]: Checked pairs total: 7309 [2020-10-16 01:48:07,049 INFO L134 LiptonReduction]: Total number of compositions: 97 [2020-10-16 01:48:07,049 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1382 [2020-10-16 01:48:07,050 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2020-10-16 01:48:07,050 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:48:07,051 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:07,051 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 01:48:07,051 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 01:48:07,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:07,051 INFO L82 PathProgramCache]: Analyzing trace with hash 716438952, now seen corresponding path program 1 times [2020-10-16 01:48:07,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:07,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148378772] [2020-10-16 01:48:07,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:48:07,085 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 01:48:07,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148378772] [2020-10-16 01:48:07,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:48:07,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 01:48:07,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412933689] [2020-10-16 01:48:07,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:48:07,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:48:07,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:48:07,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:48:07,088 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 192 [2020-10-16 01:48:07,088 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 88 flow. Second operand 4 states. [2020-10-16 01:48:07,089 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:48:07,089 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 192 [2020-10-16 01:48:07,089 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:48:07,311 INFO L129 PetriNetUnfolder]: 851/1324 cut-off events. [2020-10-16 01:48:07,311 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-16 01:48:07,315 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2649 conditions, 1324 events. 851/1324 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 6194 event pairs, 482 based on Foata normal form. 0/1042 useless extension candidates. Maximal degree in co-relation 2604. Up to 1085 conditions per place. [2020-10-16 01:48:07,330 INFO L132 encePairwiseOnDemand]: 177/192 looper letters, 24 selfloop transitions, 9 changer transitions 0/42 dead transitions. [2020-10-16 01:48:07,330 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 182 flow [2020-10-16 01:48:07,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 01:48:07,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 01:48:07,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 495 transitions. [2020-10-16 01:48:07,333 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.64453125 [2020-10-16 01:48:07,333 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 495 transitions. [2020-10-16 01:48:07,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 495 transitions. [2020-10-16 01:48:07,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:48:07,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 495 transitions. [2020-10-16 01:48:07,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 01:48:07,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 01:48:07,338 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 01:48:07,338 INFO L185 Difference]: Start difference. First operand has 35 places, 28 transitions, 88 flow. Second operand 4 states and 495 transitions. [2020-10-16 01:48:07,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 182 flow [2020-10-16 01:48:07,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 42 transitions, 170 flow, removed 6 selfloop flow, removed 0 redundant places. [2020-10-16 01:48:07,340 INFO L241 Difference]: Finished difference. Result has 40 places, 34 transitions, 143 flow [2020-10-16 01:48:07,341 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=143, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2020-10-16 01:48:07,341 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2020-10-16 01:48:07,341 INFO L481 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 143 flow [2020-10-16 01:48:07,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:48:07,341 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:07,341 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:48:07,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 01:48:07,342 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 01:48:07,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:07,342 INFO L82 PathProgramCache]: Analyzing trace with hash -2004550118, now seen corresponding path program 1 times [2020-10-16 01:48:07,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:07,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467350809] [2020-10-16 01:48:07,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:48:07,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:48:07,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467350809] [2020-10-16 01:48:07,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591640132] [2020-10-16 01:48:07,402 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 01:48:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:48:07,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 01:48:07,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 01:48:07,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:48:07,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 01:48:07,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2020-10-16 01:48:07,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940000380] [2020-10-16 01:48:07,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 01:48:07,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:48:07,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 01:48:07,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-10-16 01:48:07,526 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 192 [2020-10-16 01:48:07,527 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 143 flow. Second operand 10 states. [2020-10-16 01:48:07,527 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:48:07,528 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 192 [2020-10-16 01:48:07,528 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:48:07,896 INFO L129 PetriNetUnfolder]: 602/1024 cut-off events. [2020-10-16 01:48:07,896 INFO L130 PetriNetUnfolder]: For 408/918 co-relation queries the response was YES. [2020-10-16 01:48:07,901 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2835 conditions, 1024 events. 602/1024 cut-off events. For 408/918 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4959 event pairs, 70 based on Foata normal form. 173/1165 useless extension candidates. Maximal degree in co-relation 2810. Up to 381 conditions per place. [2020-10-16 01:48:07,909 INFO L132 encePairwiseOnDemand]: 178/192 looper letters, 50 selfloop transitions, 39 changer transitions 0/98 dead transitions. [2020-10-16 01:48:07,909 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 98 transitions, 541 flow [2020-10-16 01:48:07,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 01:48:07,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-16 01:48:07,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1114 transitions. [2020-10-16 01:48:07,914 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6446759259259259 [2020-10-16 01:48:07,914 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1114 transitions. [2020-10-16 01:48:07,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1114 transitions. [2020-10-16 01:48:07,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:48:07,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1114 transitions. [2020-10-16 01:48:07,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-16 01:48:07,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-16 01:48:07,920 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-16 01:48:07,921 INFO L185 Difference]: Start difference. First operand has 40 places, 34 transitions, 143 flow. Second operand 9 states and 1114 transitions. [2020-10-16 01:48:07,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 98 transitions, 541 flow [2020-10-16 01:48:07,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 98 transitions, 532 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 01:48:07,931 INFO L241 Difference]: Finished difference. Result has 53 places, 64 transitions, 449 flow [2020-10-16 01:48:07,931 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=449, PETRI_PLACES=53, PETRI_TRANSITIONS=64} [2020-10-16 01:48:07,931 INFO L342 CegarLoopForPetriNet]: 35 programPoint places, 18 predicate places. [2020-10-16 01:48:07,931 INFO L481 AbstractCegarLoop]: Abstraction has has 53 places, 64 transitions, 449 flow [2020-10-16 01:48:07,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 01:48:07,931 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:07,931 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2020-10-16 01:48:08,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-10-16 01:48:08,132 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 01:48:08,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:08,133 INFO L82 PathProgramCache]: Analyzing trace with hash 281567236, now seen corresponding path program 1 times [2020-10-16 01:48:08,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:08,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826225682] [2020-10-16 01:48:08,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 01:48:08,148 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 01:48:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 01:48:08,159 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 01:48:08,165 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 01:48:08,166 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 01:48:08,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 01:48:08,166 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 01:48:08,167 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 01:48:08,167 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-16 01:48:08,178 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,178 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,179 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,179 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,179 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,179 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,179 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,179 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,179 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,180 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,180 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,180 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,180 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,180 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,180 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,180 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,181 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,181 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,183 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,183 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,183 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,183 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,184 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,184 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,184 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,184 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,184 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,184 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,184 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,185 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,185 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,185 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,185 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,185 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,185 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,185 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,186 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,186 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,189 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,189 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,189 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,189 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,189 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,190 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,190 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,190 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,190 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,190 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,191 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,191 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,191 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,191 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,191 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,191 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,191 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,191 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,192 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,192 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,192 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,194 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,194 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,195 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,195 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,195 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,195 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,196 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,196 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,196 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,196 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,196 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,196 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,196 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,197 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,197 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,197 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,197 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,197 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,198 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,198 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,198 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,198 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,198 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,198 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,199 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,199 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,199 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,199 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,199 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,202 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,203 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,203 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,203 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,203 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,203 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,203 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,203 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,204 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,204 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,205 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,205 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,205 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,205 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,205 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,205 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,206 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,206 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,207 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,207 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,207 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,207 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,207 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,207 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,209 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,210 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,210 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,210 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,210 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,210 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,210 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,210 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:08,211 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-16 01:48:08,212 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 01:48:08,212 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 01:48:08,212 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 01:48:08,212 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 01:48:08,212 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 01:48:08,212 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 01:48:08,212 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 01:48:08,212 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 01:48:08,214 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 114 places, 110 transitions, 265 flow [2020-10-16 01:48:08,236 INFO L129 PetriNetUnfolder]: 12/171 cut-off events. [2020-10-16 01:48:08,236 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-16 01:48:08,238 INFO L80 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 171 events. 12/171 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 372 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 156. Up to 12 conditions per place. [2020-10-16 01:48:08,238 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 110 transitions, 265 flow [2020-10-16 01:48:08,239 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 110 transitions, 265 flow [2020-10-16 01:48:08,239 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 01:48:08,240 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 110 transitions, 265 flow [2020-10-16 01:48:08,240 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 110 transitions, 265 flow [2020-10-16 01:48:08,240 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 114 places, 110 transitions, 265 flow [2020-10-16 01:48:08,255 INFO L129 PetriNetUnfolder]: 12/171 cut-off events. [2020-10-16 01:48:08,256 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-16 01:48:08,257 INFO L80 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 171 events. 12/171 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 383 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 156. Up to 12 conditions per place. [2020-10-16 01:48:08,264 INFO L117 LiptonReduction]: Number of co-enabled transitions 6160 [2020-10-16 01:48:09,906 INFO L132 LiptonReduction]: Checked pairs total: 11445 [2020-10-16 01:48:09,907 INFO L134 LiptonReduction]: Total number of compositions: 112 [2020-10-16 01:48:09,907 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1668 [2020-10-16 01:48:09,908 INFO L129 PetriNetUnfolder]: 1/10 cut-off events. [2020-10-16 01:48:09,908 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:48:09,909 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:09,909 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 01:48:09,909 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:48:09,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:09,909 INFO L82 PathProgramCache]: Analyzing trace with hash 941401394, now seen corresponding path program 1 times [2020-10-16 01:48:09,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:09,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397742717] [2020-10-16 01:48:09,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:48:09,940 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 01:48:09,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397742717] [2020-10-16 01:48:09,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:48:09,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 01:48:09,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541051943] [2020-10-16 01:48:09,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:48:09,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:48:09,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:48:09,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:48:09,944 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 222 [2020-10-16 01:48:09,945 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 113 flow. Second operand 4 states. [2020-10-16 01:48:09,945 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:48:09,945 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 222 [2020-10-16 01:48:09,945 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:48:12,018 INFO L129 PetriNetUnfolder]: 11011/16094 cut-off events. [2020-10-16 01:48:12,018 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-16 01:48:12,104 INFO L80 FinitePrefix]: Finished finitePrefix Result has 32192 conditions, 16094 events. 11011/16094 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 1020. Compared 105978 event pairs, 4158 based on Foata normal form. 0/13500 useless extension candidates. Maximal degree in co-relation 32134. Up to 6502 conditions per place. [2020-10-16 01:48:12,243 INFO L132 encePairwiseOnDemand]: 202/222 looper letters, 38 selfloop transitions, 18 changer transitions 0/66 dead transitions. [2020-10-16 01:48:12,243 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 66 transitions, 289 flow [2020-10-16 01:48:12,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 01:48:12,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 01:48:12,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 582 transitions. [2020-10-16 01:48:12,246 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6554054054054054 [2020-10-16 01:48:12,246 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 582 transitions. [2020-10-16 01:48:12,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 582 transitions. [2020-10-16 01:48:12,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:48:12,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 582 transitions. [2020-10-16 01:48:12,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 01:48:12,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 01:48:12,250 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 01:48:12,251 INFO L185 Difference]: Start difference. First operand has 42 places, 34 transitions, 113 flow. Second operand 4 states and 582 transitions. [2020-10-16 01:48:12,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 66 transitions, 289 flow [2020-10-16 01:48:12,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 66 transitions, 269 flow, removed 10 selfloop flow, removed 0 redundant places. [2020-10-16 01:48:12,254 INFO L241 Difference]: Finished difference. Result has 47 places, 48 transitions, 218 flow [2020-10-16 01:48:12,255 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=47, PETRI_TRANSITIONS=48} [2020-10-16 01:48:12,255 INFO L342 CegarLoopForPetriNet]: 42 programPoint places, 5 predicate places. [2020-10-16 01:48:12,255 INFO L481 AbstractCegarLoop]: Abstraction has has 47 places, 48 transitions, 218 flow [2020-10-16 01:48:12,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:48:12,255 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:12,255 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:48:12,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 01:48:12,256 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:48:12,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:12,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1398817742, now seen corresponding path program 1 times [2020-10-16 01:48:12,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:12,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628999041] [2020-10-16 01:48:12,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:12,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:48:12,322 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 01:48:12,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628999041] [2020-10-16 01:48:12,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:48:12,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 01:48:12,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618879388] [2020-10-16 01:48:12,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 01:48:12,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:48:12,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 01:48:12,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-16 01:48:12,327 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 222 [2020-10-16 01:48:12,328 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 48 transitions, 218 flow. Second operand 5 states. [2020-10-16 01:48:12,328 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:48:12,328 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 222 [2020-10-16 01:48:12,328 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:48:13,776 INFO L129 PetriNetUnfolder]: 9113/13899 cut-off events. [2020-10-16 01:48:13,776 INFO L130 PetriNetUnfolder]: For 8875/19525 co-relation queries the response was YES. [2020-10-16 01:48:13,831 INFO L80 FinitePrefix]: Finished finitePrefix Result has 42503 conditions, 13899 events. 9113/13899 cut-off events. For 8875/19525 co-relation queries the response was YES. Maximal size of possible extension queue 935. Compared 95555 event pairs, 1441 based on Foata normal form. 1831/15577 useless extension candidates. Maximal degree in co-relation 42477. Up to 5170 conditions per place. [2020-10-16 01:48:13,921 INFO L132 encePairwiseOnDemand]: 205/222 looper letters, 46 selfloop transitions, 58 changer transitions 0/114 dead transitions. [2020-10-16 01:48:13,921 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 114 transitions, 694 flow [2020-10-16 01:48:13,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 01:48:13,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 01:48:13,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 721 transitions. [2020-10-16 01:48:13,924 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6495495495495496 [2020-10-16 01:48:13,924 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 721 transitions. [2020-10-16 01:48:13,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 721 transitions. [2020-10-16 01:48:13,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:48:13,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 721 transitions. [2020-10-16 01:48:13,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 01:48:13,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 01:48:13,928 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 01:48:13,928 INFO L185 Difference]: Start difference. First operand has 47 places, 48 transitions, 218 flow. Second operand 5 states and 721 transitions. [2020-10-16 01:48:13,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 114 transitions, 694 flow [2020-10-16 01:48:13,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 114 transitions, 694 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 01:48:13,934 INFO L241 Difference]: Finished difference. Result has 55 places, 90 transitions, 699 flow [2020-10-16 01:48:13,934 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=699, PETRI_PLACES=55, PETRI_TRANSITIONS=90} [2020-10-16 01:48:13,934 INFO L342 CegarLoopForPetriNet]: 42 programPoint places, 13 predicate places. [2020-10-16 01:48:13,934 INFO L481 AbstractCegarLoop]: Abstraction has has 55 places, 90 transitions, 699 flow [2020-10-16 01:48:13,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 01:48:13,934 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:13,935 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:48:13,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 01:48:13,935 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:48:13,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:13,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1964538120, now seen corresponding path program 1 times [2020-10-16 01:48:13,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:13,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211077821] [2020-10-16 01:48:13,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:48:13,983 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-16 01:48:13,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211077821] [2020-10-16 01:48:13,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:48:13,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 01:48:13,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057902521] [2020-10-16 01:48:13,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 01:48:13,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:48:13,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 01:48:13,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-16 01:48:13,986 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 222 [2020-10-16 01:48:13,987 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 90 transitions, 699 flow. Second operand 6 states. [2020-10-16 01:48:13,987 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:48:13,987 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 222 [2020-10-16 01:48:13,987 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:48:16,127 INFO L129 PetriNetUnfolder]: 7770/11637 cut-off events. [2020-10-16 01:48:16,128 INFO L130 PetriNetUnfolder]: For 33066/66315 co-relation queries the response was YES. [2020-10-16 01:48:16,161 INFO L80 FinitePrefix]: Finished finitePrefix Result has 51592 conditions, 11637 events. 7770/11637 cut-off events. For 33066/66315 co-relation queries the response was YES. Maximal size of possible extension queue 679. Compared 74685 event pairs, 839 based on Foata normal form. 688/12178 useless extension candidates. Maximal degree in co-relation 51560. Up to 4708 conditions per place. [2020-10-16 01:48:16,246 INFO L132 encePairwiseOnDemand]: 205/222 looper letters, 56 selfloop transitions, 139 changer transitions 0/205 dead transitions. [2020-10-16 01:48:16,246 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 205 transitions, 1928 flow [2020-10-16 01:48:16,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 01:48:16,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-16 01:48:16,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 864 transitions. [2020-10-16 01:48:16,249 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6486486486486487 [2020-10-16 01:48:16,249 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 864 transitions. [2020-10-16 01:48:16,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 864 transitions. [2020-10-16 01:48:16,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:48:16,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 864 transitions. [2020-10-16 01:48:16,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-16 01:48:16,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-16 01:48:16,254 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-16 01:48:16,254 INFO L185 Difference]: Start difference. First operand has 55 places, 90 transitions, 699 flow. Second operand 6 states and 864 transitions. [2020-10-16 01:48:16,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 205 transitions, 1928 flow [2020-10-16 01:48:16,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 205 transitions, 1890 flow, removed 19 selfloop flow, removed 0 redundant places. [2020-10-16 01:48:16,445 INFO L241 Difference]: Finished difference. Result has 64 places, 178 transitions, 1972 flow [2020-10-16 01:48:16,445 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1972, PETRI_PLACES=64, PETRI_TRANSITIONS=178} [2020-10-16 01:48:16,446 INFO L342 CegarLoopForPetriNet]: 42 programPoint places, 22 predicate places. [2020-10-16 01:48:16,446 INFO L481 AbstractCegarLoop]: Abstraction has has 64 places, 178 transitions, 1972 flow [2020-10-16 01:48:16,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 01:48:16,446 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:16,446 INFO L255 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:48:16,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 01:48:16,446 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:48:16,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:16,447 INFO L82 PathProgramCache]: Analyzing trace with hash -646932581, now seen corresponding path program 1 times [2020-10-16 01:48:16,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:16,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215682798] [2020-10-16 01:48:16,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 01:48:16,459 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 01:48:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 01:48:16,469 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 01:48:16,475 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 01:48:16,475 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 01:48:16,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-16 01:48:16,476 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 01:48:16,476 WARN L371 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 01:48:16,477 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-16 01:48:16,488 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,488 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,488 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,488 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,488 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,489 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,489 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,489 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,489 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,489 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,489 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,489 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,490 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,490 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,490 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,490 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,490 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,490 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,490 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,491 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,491 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,491 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,491 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,491 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,491 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,491 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,492 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,492 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,492 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,492 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,492 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,492 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,493 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,493 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,493 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,493 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,493 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,493 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,493 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,494 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,494 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,494 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,494 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,494 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,494 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,494 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,494 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,495 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,495 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,495 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,495 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,495 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,495 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,495 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,496 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,496 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,496 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,496 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,496 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,496 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,496 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,497 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,497 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,497 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,497 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,497 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,497 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,498 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,498 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,498 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,498 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,498 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,498 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,498 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,498 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,499 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,499 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,499 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,499 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,499 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,499 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,499 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,499 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,500 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,500 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,500 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,500 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,500 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,500 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,500 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,501 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,501 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,501 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,501 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,501 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,501 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,501 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,502 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,502 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,502 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,502 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,502 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,502 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,502 WARN L313 ript$VariableManager]: TermVariabe thrThread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,504 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,504 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,504 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,504 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,504 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,505 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,505 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,505 WARN L313 ript$VariableManager]: TermVariabe thrThread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,506 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,506 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,506 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,506 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,506 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,506 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,507 WARN L313 ript$VariableManager]: TermVariabe thrThread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,507 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,508 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,508 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,508 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,508 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,508 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,508 WARN L313 ript$VariableManager]: TermVariabe thrThread4of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,508 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,508 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,509 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,509 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,510 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,510 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,510 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,510 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,510 WARN L313 ript$VariableManager]: TermVariabe thrThread5of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,510 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,511 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,511 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,511 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,511 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,512 WARN L313 ript$VariableManager]: TermVariabe thrThread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,512 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,512 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,512 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of6ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:48:16,513 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-16 01:48:16,513 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 01:48:16,513 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 01:48:16,513 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 01:48:16,514 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 01:48:16,514 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 01:48:16,514 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 01:48:16,514 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 01:48:16,514 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 01:48:16,515 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 130 places, 125 transitions, 310 flow [2020-10-16 01:48:16,532 INFO L129 PetriNetUnfolder]: 14/199 cut-off events. [2020-10-16 01:48:16,532 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-16 01:48:16,534 INFO L80 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 199 events. 14/199 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 435 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 190. Up to 14 conditions per place. [2020-10-16 01:48:16,534 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 125 transitions, 310 flow [2020-10-16 01:48:16,535 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 125 transitions, 310 flow [2020-10-16 01:48:16,536 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 01:48:16,536 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 125 transitions, 310 flow [2020-10-16 01:48:16,536 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 125 transitions, 310 flow [2020-10-16 01:48:16,536 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 130 places, 125 transitions, 310 flow [2020-10-16 01:48:16,552 INFO L129 PetriNetUnfolder]: 14/199 cut-off events. [2020-10-16 01:48:16,553 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-16 01:48:16,555 INFO L80 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 199 events. 14/199 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 426 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 190. Up to 14 conditions per place. [2020-10-16 01:48:16,564 INFO L117 LiptonReduction]: Number of co-enabled transitions 8652 [2020-10-16 01:48:18,633 INFO L132 LiptonReduction]: Checked pairs total: 18458 [2020-10-16 01:48:18,633 INFO L134 LiptonReduction]: Total number of compositions: 134 [2020-10-16 01:48:18,633 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2097 [2020-10-16 01:48:18,635 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2020-10-16 01:48:18,635 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:48:18,635 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:18,635 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 01:48:18,635 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:48:18,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:18,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1199909937, now seen corresponding path program 1 times [2020-10-16 01:48:18,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:18,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086199065] [2020-10-16 01:48:18,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:48:18,667 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 01:48:18,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086199065] [2020-10-16 01:48:18,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:48:18,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 01:48:18,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108006122] [2020-10-16 01:48:18,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:48:18,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:48:18,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:48:18,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:48:18,673 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 259 [2020-10-16 01:48:18,673 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 144 flow. Second operand 4 states. [2020-10-16 01:48:18,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:48:18,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 259 [2020-10-16 01:48:18,674 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:48:25,587 INFO L129 PetriNetUnfolder]: 42541/54832 cut-off events. [2020-10-16 01:48:25,588 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-16 01:48:25,821 INFO L80 FinitePrefix]: Finished finitePrefix Result has 109672 conditions, 54832 events. 42541/54832 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 2600. Compared 300174 event pairs, 31154 based on Foata normal form. 0/41794 useless extension candidates. Maximal degree in co-relation 109600. Up to 51883 conditions per place. [2020-10-16 01:48:26,039 INFO L132 encePairwiseOnDemand]: 234/259 looper letters, 36 selfloop transitions, 13 changer transitions 0/60 dead transitions. [2020-10-16 01:48:26,039 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 60 transitions, 278 flow [2020-10-16 01:48:26,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 01:48:26,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 01:48:26,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 637 transitions. [2020-10-16 01:48:26,041 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6148648648648649 [2020-10-16 01:48:26,042 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 637 transitions. [2020-10-16 01:48:26,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 637 transitions. [2020-10-16 01:48:26,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:48:26,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 637 transitions. [2020-10-16 01:48:26,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 01:48:26,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 01:48:26,045 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 01:48:26,046 INFO L185 Difference]: Start difference. First operand has 49 places, 42 transitions, 144 flow. Second operand 4 states and 637 transitions. [2020-10-16 01:48:26,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 60 transitions, 278 flow [2020-10-16 01:48:26,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 60 transitions, 248 flow, removed 15 selfloop flow, removed 0 redundant places. [2020-10-16 01:48:26,048 INFO L241 Difference]: Finished difference. Result has 54 places, 48 transitions, 207 flow [2020-10-16 01:48:26,048 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=207, PETRI_PLACES=54, PETRI_TRANSITIONS=48} [2020-10-16 01:48:26,048 INFO L342 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2020-10-16 01:48:26,048 INFO L481 AbstractCegarLoop]: Abstraction has has 54 places, 48 transitions, 207 flow [2020-10-16 01:48:26,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:48:26,049 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:26,049 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:48:26,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-16 01:48:26,049 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:48:26,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:26,049 INFO L82 PathProgramCache]: Analyzing trace with hash 915842161, now seen corresponding path program 1 times [2020-10-16 01:48:26,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:26,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694431288] [2020-10-16 01:48:26,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:26,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:48:26,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:48:26,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694431288] [2020-10-16 01:48:26,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589877023] [2020-10-16 01:48:26,086 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 01:48:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:48:26,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 01:48:26,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 01:48:26,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:48:26,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 01:48:26,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2020-10-16 01:48:26,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58576449] [2020-10-16 01:48:26,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 01:48:26,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:48:26,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 01:48:26,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-16 01:48:26,200 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 259 [2020-10-16 01:48:26,201 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 48 transitions, 207 flow. Second operand 10 states. [2020-10-16 01:48:26,201 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:48:26,201 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 259 [2020-10-16 01:48:26,201 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:48:30,556 INFO L129 PetriNetUnfolder]: 35676/49738 cut-off events. [2020-10-16 01:48:30,556 INFO L130 PetriNetUnfolder]: For 20332/59764 co-relation queries the response was YES. [2020-10-16 01:48:30,780 INFO L80 FinitePrefix]: Finished finitePrefix Result has 135815 conditions, 49738 events. 35676/49738 cut-off events. For 20332/59764 co-relation queries the response was YES. Maximal size of possible extension queue 2597. Compared 330388 event pairs, 5122 based on Foata normal form. 7384/56791 useless extension candidates. Maximal degree in co-relation 135788. Up to 20839 conditions per place. [2020-10-16 01:48:31,009 INFO L132 encePairwiseOnDemand]: 239/259 looper letters, 76 selfloop transitions, 57 changer transitions 0/144 dead transitions. [2020-10-16 01:48:31,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 144 transitions, 803 flow [2020-10-16 01:48:31,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 01:48:31,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-16 01:48:31,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1414 transitions. [2020-10-16 01:48:31,013 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6066066066066066 [2020-10-16 01:48:31,013 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1414 transitions. [2020-10-16 01:48:31,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1414 transitions. [2020-10-16 01:48:31,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:48:31,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1414 transitions. [2020-10-16 01:48:31,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-16 01:48:31,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-16 01:48:31,020 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-16 01:48:31,020 INFO L185 Difference]: Start difference. First operand has 54 places, 48 transitions, 207 flow. Second operand 9 states and 1414 transitions. [2020-10-16 01:48:31,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 144 transitions, 803 flow [2020-10-16 01:48:31,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 144 transitions, 790 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 01:48:31,026 INFO L241 Difference]: Finished difference. Result has 67 places, 92 transitions, 657 flow [2020-10-16 01:48:31,027 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=657, PETRI_PLACES=67, PETRI_TRANSITIONS=92} [2020-10-16 01:48:31,027 INFO L342 CegarLoopForPetriNet]: 49 programPoint places, 18 predicate places. [2020-10-16 01:48:31,027 INFO L481 AbstractCegarLoop]: Abstraction has has 67 places, 92 transitions, 657 flow [2020-10-16 01:48:31,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 01:48:31,027 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:31,027 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:48:31,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-10-16 01:48:31,235 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:48:31,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:31,236 INFO L82 PathProgramCache]: Analyzing trace with hash -188086042, now seen corresponding path program 1 times [2020-10-16 01:48:31,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:31,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694091787] [2020-10-16 01:48:31,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:48:31,312 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-16 01:48:31,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694091787] [2020-10-16 01:48:31,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:48:31,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 01:48:31,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012633712] [2020-10-16 01:48:31,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 01:48:31,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:48:31,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 01:48:31,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 01:48:31,317 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 259 [2020-10-16 01:48:31,318 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 92 transitions, 657 flow. Second operand 7 states. [2020-10-16 01:48:31,318 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:48:31,318 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 259 [2020-10-16 01:48:31,318 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:48:42,836 INFO L129 PetriNetUnfolder]: 58948/83670 cut-off events. [2020-10-16 01:48:42,837 INFO L130 PetriNetUnfolder]: For 231647/446124 co-relation queries the response was YES. [2020-10-16 01:48:43,338 INFO L80 FinitePrefix]: Finished finitePrefix Result has 356378 conditions, 83670 events. 58948/83670 cut-off events. For 231647/446124 co-relation queries the response was YES. Maximal size of possible extension queue 4556. Compared 617077 event pairs, 5710 based on Foata normal form. 4614/87861 useless extension candidates. Maximal degree in co-relation 356344. Up to 34089 conditions per place. [2020-10-16 01:48:43,814 INFO L132 encePairwiseOnDemand]: 239/259 looper letters, 73 selfloop transitions, 112 changer transitions 0/196 dead transitions. [2020-10-16 01:48:43,814 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 196 transitions, 1707 flow [2020-10-16 01:48:43,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 01:48:43,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-16 01:48:43,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1267 transitions. [2020-10-16 01:48:43,818 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6114864864864865 [2020-10-16 01:48:43,818 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1267 transitions. [2020-10-16 01:48:43,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1267 transitions. [2020-10-16 01:48:43,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:48:43,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1267 transitions. [2020-10-16 01:48:43,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-10-16 01:48:43,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 9 states. [2020-10-16 01:48:43,824 INFO L81 ComplementDD]: Finished complementDD. Result 9 states. [2020-10-16 01:48:43,824 INFO L185 Difference]: Start difference. First operand has 67 places, 92 transitions, 657 flow. Second operand 8 states and 1267 transitions. [2020-10-16 01:48:43,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 196 transitions, 1707 flow [2020-10-16 01:48:46,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 196 transitions, 1586 flow, removed 48 selfloop flow, removed 2 redundant places. [2020-10-16 01:48:46,810 INFO L241 Difference]: Finished difference. Result has 76 places, 149 transitions, 1451 flow [2020-10-16 01:48:46,811 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1451, PETRI_PLACES=76, PETRI_TRANSITIONS=149} [2020-10-16 01:48:46,812 INFO L342 CegarLoopForPetriNet]: 49 programPoint places, 27 predicate places. [2020-10-16 01:48:46,812 INFO L481 AbstractCegarLoop]: Abstraction has has 76 places, 149 transitions, 1451 flow [2020-10-16 01:48:46,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 01:48:46,812 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:48:46,812 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:48:46,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-16 01:48:46,812 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:48:46,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:48:46,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1534757702, now seen corresponding path program 2 times [2020-10-16 01:48:46,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:48:46,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145432817] [2020-10-16 01:48:46,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:48:46,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:48:46,876 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:48:46,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145432817] [2020-10-16 01:48:46,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123127009] [2020-10-16 01:48:46,877 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 01:48:46,980 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-16 01:48:46,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-16 01:48:46,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-16 01:48:46,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 01:48:47,089 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:48:47,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-16 01:48:47,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 12 [2020-10-16 01:48:47,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424655208] [2020-10-16 01:48:47,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-16 01:48:47,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:48:47,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-16 01:48:47,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-10-16 01:48:47,096 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 259 [2020-10-16 01:48:47,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 149 transitions, 1451 flow. Second operand 8 states. [2020-10-16 01:48:47,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:48:47,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 259 [2020-10-16 01:48:47,098 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:48:59,533 INFO L129 PetriNetUnfolder]: 54991/75810 cut-off events. [2020-10-16 01:48:59,533 INFO L130 PetriNetUnfolder]: For 413081/934884 co-relation queries the response was YES. [2020-10-16 01:49:00,023 INFO L80 FinitePrefix]: Finished finitePrefix Result has 401398 conditions, 75810 events. 54991/75810 cut-off events. For 413081/934884 co-relation queries the response was YES. Maximal size of possible extension queue 3353. Compared 509988 event pairs, 7824 based on Foata normal form. 1768/77149 useless extension candidates. Maximal degree in co-relation 401359. Up to 48189 conditions per place. [2020-10-16 01:49:00,517 INFO L132 encePairwiseOnDemand]: 240/259 looper letters, 187 selfloop transitions, 73 changer transitions 0/271 dead transitions. [2020-10-16 01:49:00,517 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 271 transitions, 3131 flow [2020-10-16 01:49:00,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 01:49:00,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-16 01:49:00,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1255 transitions. [2020-10-16 01:49:00,521 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6056949806949807 [2020-10-16 01:49:00,521 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1255 transitions. [2020-10-16 01:49:00,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1255 transitions. [2020-10-16 01:49:00,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:49:00,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1255 transitions. [2020-10-16 01:49:00,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-10-16 01:49:00,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 9 states. [2020-10-16 01:49:00,527 INFO L81 ComplementDD]: Finished complementDD. Result 9 states. [2020-10-16 01:49:00,528 INFO L185 Difference]: Start difference. First operand has 76 places, 149 transitions, 1451 flow. Second operand 8 states and 1255 transitions. [2020-10-16 01:49:00,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 271 transitions, 3131 flow [2020-10-16 01:49:11,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 271 transitions, 2896 flow, removed 96 selfloop flow, removed 3 redundant places. [2020-10-16 01:49:11,482 INFO L241 Difference]: Finished difference. Result has 83 places, 197 transitions, 2124 flow [2020-10-16 01:49:11,483 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=1306, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2124, PETRI_PLACES=83, PETRI_TRANSITIONS=197} [2020-10-16 01:49:11,483 INFO L342 CegarLoopForPetriNet]: 49 programPoint places, 34 predicate places. [2020-10-16 01:49:11,483 INFO L481 AbstractCegarLoop]: Abstraction has has 83 places, 197 transitions, 2124 flow [2020-10-16 01:49:11,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-16 01:49:11,483 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:49:11,483 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:49:11,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-10-16 01:49:11,684 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:49:11,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:49:11,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1656312495, now seen corresponding path program 1 times [2020-10-16 01:49:11,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:49:11,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865515647] [2020-10-16 01:49:11,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:49:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:49:11,750 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:49:11,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865515647] [2020-10-16 01:49:11,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679903368] [2020-10-16 01:49:11,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 01:49:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:49:11,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-16 01:49:11,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 01:49:11,979 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:49:11,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 01:49:11,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 14 [2020-10-16 01:49:11,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853255269] [2020-10-16 01:49:11,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-16 01:49:11,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:49:11,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-16 01:49:11,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-16 01:49:11,983 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 259 [2020-10-16 01:49:11,984 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 197 transitions, 2124 flow. Second operand 16 states. [2020-10-16 01:49:11,984 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:49:11,984 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 259 [2020-10-16 01:49:11,984 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:49:25,133 INFO L129 PetriNetUnfolder]: 59660/81171 cut-off events. [2020-10-16 01:49:25,134 INFO L130 PetriNetUnfolder]: For 480117/1000430 co-relation queries the response was YES. [2020-10-16 01:49:25,704 INFO L80 FinitePrefix]: Finished finitePrefix Result has 441590 conditions, 81171 events. 59660/81171 cut-off events. For 480117/1000430 co-relation queries the response was YES. Maximal size of possible extension queue 3982. Compared 533828 event pairs, 1292 based on Foata normal form. 3812/84558 useless extension candidates. Maximal degree in co-relation 441547. Up to 33226 conditions per place. [2020-10-16 01:49:26,236 INFO L132 encePairwiseOnDemand]: 239/259 looper letters, 178 selfloop transitions, 513 changer transitions 0/702 dead transitions. [2020-10-16 01:49:26,237 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 702 transitions, 8387 flow [2020-10-16 01:49:26,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-16 01:49:26,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-16 01:49:26,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3181 transitions. [2020-10-16 01:49:26,242 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.614092664092664 [2020-10-16 01:49:26,242 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3181 transitions. [2020-10-16 01:49:26,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3181 transitions. [2020-10-16 01:49:26,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:49:26,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3181 transitions. [2020-10-16 01:49:26,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 21 states. [2020-10-16 01:49:26,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 21 states. [2020-10-16 01:49:26,256 INFO L81 ComplementDD]: Finished complementDD. Result 21 states. [2020-10-16 01:49:26,256 INFO L185 Difference]: Start difference. First operand has 83 places, 197 transitions, 2124 flow. Second operand 20 states and 3181 transitions. [2020-10-16 01:49:26,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 702 transitions, 8387 flow [2020-10-16 01:49:43,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 702 transitions, 8042 flow, removed 114 selfloop flow, removed 4 redundant places. [2020-10-16 01:49:43,089 INFO L241 Difference]: Finished difference. Result has 106 places, 589 transitions, 8139 flow [2020-10-16 01:49:43,089 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=1960, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8139, PETRI_PLACES=106, PETRI_TRANSITIONS=589} [2020-10-16 01:49:43,090 INFO L342 CegarLoopForPetriNet]: 49 programPoint places, 57 predicate places. [2020-10-16 01:49:43,090 INFO L481 AbstractCegarLoop]: Abstraction has has 106 places, 589 transitions, 8139 flow [2020-10-16 01:49:43,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-16 01:49:43,090 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:49:43,090 INFO L255 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:49:43,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 01:49:43,305 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:49:43,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:49:43,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1497346824, now seen corresponding path program 1 times [2020-10-16 01:49:43,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:49:43,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787133369] [2020-10-16 01:49:43,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:49:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 01:49:43,319 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 01:49:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 01:49:43,327 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 01:49:43,334 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 01:49:43,334 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 01:49:43,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-16 01:49:43,334 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 01:49:43,335 WARN L371 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 01:49:43,335 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2020-10-16 01:49:43,346 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,346 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,346 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,346 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,346 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,347 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,347 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,347 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,347 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,347 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,347 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,347 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,348 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,348 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,348 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,348 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,348 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,348 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,348 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,348 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,349 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,349 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,349 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,349 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,349 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,349 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,349 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,349 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,349 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,350 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,350 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,350 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,350 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,350 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,350 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,350 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,350 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,351 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,351 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,351 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,351 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,351 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,351 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,351 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,351 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,352 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,352 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,352 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,352 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,352 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,352 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,352 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,352 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,353 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,353 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,353 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,353 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,353 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,353 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,353 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,353 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,354 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,354 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,354 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,354 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,354 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,354 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,354 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,354 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,354 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,355 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,355 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,355 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,355 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,355 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,355 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,355 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,355 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,356 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,356 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,356 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,356 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,356 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,356 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,356 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,357 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,357 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,357 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,357 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,357 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,357 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,357 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,357 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,358 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,358 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,358 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,358 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,358 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,358 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,358 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,358 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,359 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,359 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,359 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,359 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,359 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,359 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,359 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,360 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,360 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,360 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,360 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,360 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,360 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,360 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,361 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,361 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,361 WARN L313 ript$VariableManager]: TermVariabe thrThread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,361 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,361 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,362 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,362 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,363 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,363 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,363 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,363 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,363 WARN L313 ript$VariableManager]: TermVariabe thrThread2of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,363 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,364 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,364 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,364 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,364 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,365 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,365 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,365 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,365 WARN L313 ript$VariableManager]: TermVariabe thrThread3of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,366 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,366 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,366 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,366 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,366 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,366 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,367 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,367 WARN L313 ript$VariableManager]: TermVariabe thrThread4of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,367 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,368 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,368 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,368 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,368 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,368 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,368 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,368 WARN L313 ript$VariableManager]: TermVariabe thrThread5of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,369 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,370 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,370 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,370 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,370 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,370 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,370 WARN L313 ript$VariableManager]: TermVariabe thrThread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,370 WARN L313 ript$VariableManager]: TermVariabe |thrThread6of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,371 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,371 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,371 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_incs_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,372 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,372 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_inct_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,372 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,372 WARN L313 ript$VariableManager]: TermVariabe thrThread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,372 WARN L313 ript$VariableManager]: TermVariabe |thrThread7of7ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:49:43,373 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-10-16 01:49:43,373 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 01:49:43,373 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 01:49:43,374 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 01:49:43,374 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 01:49:43,374 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 01:49:43,374 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 01:49:43,374 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 01:49:43,374 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 01:49:43,375 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 146 places, 140 transitions, 357 flow [2020-10-16 01:49:43,392 INFO L129 PetriNetUnfolder]: 16/227 cut-off events. [2020-10-16 01:49:43,392 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-16 01:49:43,394 INFO L80 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 227 events. 16/227 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 511 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 225. Up to 16 conditions per place. [2020-10-16 01:49:43,394 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 140 transitions, 357 flow [2020-10-16 01:49:43,395 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 140 transitions, 357 flow [2020-10-16 01:49:43,395 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 01:49:43,395 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 140 transitions, 357 flow [2020-10-16 01:49:43,396 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 140 transitions, 357 flow [2020-10-16 01:49:43,396 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 146 places, 140 transitions, 357 flow [2020-10-16 01:49:43,408 INFO L129 PetriNetUnfolder]: 16/227 cut-off events. [2020-10-16 01:49:43,409 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-16 01:49:43,410 INFO L80 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 227 events. 16/227 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 490 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 225. Up to 16 conditions per place. [2020-10-16 01:49:43,419 INFO L117 LiptonReduction]: Number of co-enabled transitions 11564 [2020-10-16 01:49:45,589 INFO L132 LiptonReduction]: Checked pairs total: 24141 [2020-10-16 01:49:45,589 INFO L134 LiptonReduction]: Total number of compositions: 153 [2020-10-16 01:49:45,589 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2194 [2020-10-16 01:49:45,590 INFO L129 PetriNetUnfolder]: 1/10 cut-off events. [2020-10-16 01:49:45,590 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:49:45,590 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:49:45,591 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 01:49:45,591 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:49:45,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:49:45,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1496855041, now seen corresponding path program 1 times [2020-10-16 01:49:45,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:49:45,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481970884] [2020-10-16 01:49:45,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:49:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:49:45,621 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 01:49:45,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481970884] [2020-10-16 01:49:45,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:49:45,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 01:49:45,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682746568] [2020-10-16 01:49:45,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:49:45,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:49:45,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:49:45,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:49:45,624 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 293 [2020-10-16 01:49:45,624 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 173 flow. Second operand 4 states. [2020-10-16 01:49:45,624 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:49:45,624 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 293 [2020-10-16 01:49:45,624 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:50:47,608 INFO L129 PetriNetUnfolder]: 274194/338160 cut-off events. [2020-10-16 01:50:47,609 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-16 01:50:49,637 INFO L80 FinitePrefix]: Finished finitePrefix Result has 676333 conditions, 338160 events. 274194/338160 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 13145. Compared 1917659 event pairs, 211897 based on Foata normal form. 0/256082 useless extension candidates. Maximal degree in co-relation 676246. Up to 327916 conditions per place. [2020-10-16 01:50:51,239 INFO L132 encePairwiseOnDemand]: 264/293 looper letters, 42 selfloop transitions, 15 changer transitions 0/69 dead transitions. [2020-10-16 01:50:51,239 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 69 transitions, 329 flow [2020-10-16 01:50:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 01:50:51,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 01:50:51,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 705 transitions. [2020-10-16 01:50:51,241 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6015358361774744 [2020-10-16 01:50:51,241 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 705 transitions. [2020-10-16 01:50:51,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 705 transitions. [2020-10-16 01:50:51,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:50:51,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 705 transitions. [2020-10-16 01:50:51,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 01:50:51,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 01:50:51,246 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 01:50:51,246 INFO L185 Difference]: Start difference. First operand has 56 places, 48 transitions, 173 flow. Second operand 4 states and 705 transitions. [2020-10-16 01:50:51,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 69 transitions, 329 flow [2020-10-16 01:50:51,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 69 transitions, 287 flow, removed 21 selfloop flow, removed 0 redundant places. [2020-10-16 01:50:51,248 INFO L241 Difference]: Finished difference. Result has 61 places, 55 transitions, 239 flow [2020-10-16 01:50:51,248 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=61, PETRI_TRANSITIONS=55} [2020-10-16 01:50:51,248 INFO L342 CegarLoopForPetriNet]: 56 programPoint places, 5 predicate places. [2020-10-16 01:50:51,248 INFO L481 AbstractCegarLoop]: Abstraction has has 61 places, 55 transitions, 239 flow [2020-10-16 01:50:51,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:50:51,249 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:50:51,249 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:50:51,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-16 01:50:51,249 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:50:51,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:50:51,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1723461042, now seen corresponding path program 1 times [2020-10-16 01:50:51,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:50:51,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271877875] [2020-10-16 01:50:51,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:50:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:50:51,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:50:51,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271877875] [2020-10-16 01:50:51,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587779269] [2020-10-16 01:50:51,295 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 01:50:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:50:51,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-16 01:50:51,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 01:50:51,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:50:51,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 01:50:51,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2020-10-16 01:50:51,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530921169] [2020-10-16 01:50:51,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 01:50:51,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:50:51,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 01:50:51,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-16 01:50:51,422 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 293 [2020-10-16 01:50:51,423 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 55 transitions, 239 flow. Second operand 10 states. [2020-10-16 01:50:51,423 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:50:51,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 293 [2020-10-16 01:50:51,424 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:51:42,932 INFO L129 PetriNetUnfolder]: 266360/349780 cut-off events. [2020-10-16 01:51:42,932 INFO L130 PetriNetUnfolder]: For 141716/555701 co-relation queries the response was YES. [2020-10-16 01:51:44,702 INFO L80 FinitePrefix]: Finished finitePrefix Result has 952893 conditions, 349780 events. 266360/349780 cut-off events. For 141716/555701 co-relation queries the response was YES. Maximal size of possible extension queue 15031. Compared 2449021 event pairs, 42754 based on Foata normal form. 47937/396628 useless extension candidates. Maximal degree in co-relation 952865. Up to 150025 conditions per place. [2020-10-16 01:51:48,027 INFO L132 encePairwiseOnDemand]: 269/293 looper letters, 87 selfloop transitions, 68 changer transitions 0/167 dead transitions. [2020-10-16 01:51:48,027 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 167 transitions, 934 flow [2020-10-16 01:51:48,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-16 01:51:48,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-16 01:51:48,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1564 transitions. [2020-10-16 01:51:48,031 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.5930982176715965 [2020-10-16 01:51:48,031 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1564 transitions. [2020-10-16 01:51:48,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1564 transitions. [2020-10-16 01:51:48,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:51:48,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1564 transitions. [2020-10-16 01:51:48,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-16 01:51:48,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-16 01:51:48,038 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-16 01:51:48,038 INFO L185 Difference]: Start difference. First operand has 61 places, 55 transitions, 239 flow. Second operand 9 states and 1564 transitions. [2020-10-16 01:51:48,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 167 transitions, 934 flow [2020-10-16 01:51:48,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 167 transitions, 919 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 01:51:48,042 INFO L241 Difference]: Finished difference. Result has 74 places, 108 transitions, 777 flow [2020-10-16 01:51:48,042 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=777, PETRI_PLACES=74, PETRI_TRANSITIONS=108} [2020-10-16 01:51:48,042 INFO L342 CegarLoopForPetriNet]: 56 programPoint places, 18 predicate places. [2020-10-16 01:51:48,043 INFO L481 AbstractCegarLoop]: Abstraction has has 74 places, 108 transitions, 777 flow [2020-10-16 01:51:48,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 01:51:48,043 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:51:48,043 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:51:48,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-10-16 01:51:48,257 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:51:48,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:51:48,258 INFO L82 PathProgramCache]: Analyzing trace with hash -615997365, now seen corresponding path program 1 times [2020-10-16 01:51:48,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:51:48,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130795653] [2020-10-16 01:51:48,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:51:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:51:48,302 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 01:51:48,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130795653] [2020-10-16 01:51:48,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942554524] [2020-10-16 01:51:48,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 01:51:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:51:48,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-16 01:51:48,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 01:51:48,443 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 01:51:48,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 01:51:48,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 11 [2020-10-16 01:51:48,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919761450] [2020-10-16 01:51:48,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 01:51:48,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:51:48,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 01:51:48,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-10-16 01:51:48,447 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 293 [2020-10-16 01:51:48,448 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 108 transitions, 777 flow. Second operand 13 states. [2020-10-16 01:51:48,448 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:51:48,449 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 293 [2020-10-16 01:51:48,449 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:52:53,713 INFO L129 PetriNetUnfolder]: 247923/333851 cut-off events. [2020-10-16 01:52:53,713 INFO L130 PetriNetUnfolder]: For 948890/2338997 co-relation queries the response was YES. [2020-10-16 01:52:55,911 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1441132 conditions, 333851 events. 247923/333851 cut-off events. For 948890/2338997 co-relation queries the response was YES. Maximal size of possible extension queue 14508. Compared 2486934 event pairs, 20029 based on Foata normal form. 33567/366366 useless extension candidates. Maximal degree in co-relation 1441097. Up to 138239 conditions per place. [2020-10-16 01:52:58,888 INFO L132 encePairwiseOnDemand]: 269/293 looper letters, 137 selfloop transitions, 189 changer transitions 0/338 dead transitions. [2020-10-16 01:52:58,888 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 338 transitions, 2994 flow [2020-10-16 01:52:58,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 01:52:58,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-16 01:52:58,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2451 transitions. [2020-10-16 01:52:58,891 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.5975134080936129 [2020-10-16 01:52:58,891 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2451 transitions. [2020-10-16 01:52:58,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2451 transitions. [2020-10-16 01:52:58,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:52:58,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2451 transitions. [2020-10-16 01:52:58,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 15 states. [2020-10-16 01:52:58,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 15 states. [2020-10-16 01:52:58,897 INFO L81 ComplementDD]: Finished complementDD. Result 15 states. [2020-10-16 01:52:58,897 INFO L185 Difference]: Start difference. First operand has 74 places, 108 transitions, 777 flow. Second operand 14 states and 2451 transitions. [2020-10-16 01:52:58,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 338 transitions, 2994 flow [2020-10-16 01:53:25,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 338 transitions, 2804 flow, removed 77 selfloop flow, removed 2 redundant places. [2020-10-16 01:53:25,606 INFO L241 Difference]: Finished difference. Result has 92 places, 233 transitions, 2391 flow [2020-10-16 01:53:25,607 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=293, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2391, PETRI_PLACES=92, PETRI_TRANSITIONS=233} [2020-10-16 01:53:25,607 INFO L342 CegarLoopForPetriNet]: 56 programPoint places, 36 predicate places. [2020-10-16 01:53:25,607 INFO L481 AbstractCegarLoop]: Abstraction has has 92 places, 233 transitions, 2391 flow [2020-10-16 01:53:25,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 01:53:25,607 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:53:25,607 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:53:25,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 01:53:25,822 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:53:25,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:53:25,822 INFO L82 PathProgramCache]: Analyzing trace with hash 622172396, now seen corresponding path program 1 times [2020-10-16 01:53:25,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:53:25,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653834550] [2020-10-16 01:53:25,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:53:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:53:25,902 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 01:53:25,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653834550] [2020-10-16 01:53:25,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:53:25,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 01:53:25,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459330773] [2020-10-16 01:53:25,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 01:53:25,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:53:25,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 01:53:25,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 01:53:25,907 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 293 [2020-10-16 01:53:25,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 233 transitions, 2391 flow. Second operand 7 states. [2020-10-16 01:53:25,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:53:25,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 293 [2020-10-16 01:53:25,908 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown