/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-wmm/mix037_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 01:24:41,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 01:24:41,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 01:24:41,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 01:24:41,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 01:24:41,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 01:24:41,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 01:24:41,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 01:24:41,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 01:24:41,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 01:24:41,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 01:24:41,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 01:24:41,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 01:24:41,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 01:24:41,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 01:24:41,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 01:24:41,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 01:24:41,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 01:24:41,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 01:24:41,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 01:24:41,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 01:24:41,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 01:24:41,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 01:24:41,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 01:24:41,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 01:24:41,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 01:24:41,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 01:24:41,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 01:24:41,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 01:24:41,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 01:24:41,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 01:24:41,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 01:24:41,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 01:24:41,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 01:24:41,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 01:24:41,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 01:24:41,457 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 01:24:41,498 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 01:24:41,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 01:24:41,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 01:24:41,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 01:24:41,501 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 01:24:41,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 01:24:41,501 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 01:24:41,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 01:24:41,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 01:24:41,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 01:24:41,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 01:24:41,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 01:24:41,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 01:24:41,504 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 01:24:41,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 01:24:41,505 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 01:24:41,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 01:24:41,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 01:24:41,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 01:24:41,506 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 01:24:41,506 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 01:24:41,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 01:24:41,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 01:24:41,507 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 01:24:41,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 01:24:41,507 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 01:24:41,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 01:24:41,507 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 01:24:41,508 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 01:24:41,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 01:24:41,833 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 01:24:41,838 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 01:24:41,840 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 01:24:41,840 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 01:24:41,841 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix037_power.opt.i [2020-10-16 01:24:41,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc772a732/b5b8b194fe0842beba1d7c68527120b4/FLAGc1fcd3673 [2020-10-16 01:24:42,506 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 01:24:42,506 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix037_power.opt.i [2020-10-16 01:24:42,521 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc772a732/b5b8b194fe0842beba1d7c68527120b4/FLAGc1fcd3673 [2020-10-16 01:24:42,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc772a732/b5b8b194fe0842beba1d7c68527120b4 [2020-10-16 01:24:42,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 01:24:42,753 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 01:24:42,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 01:24:42,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 01:24:42,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 01:24:42,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:24:42" (1/1) ... [2020-10-16 01:24:42,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b220ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:42, skipping insertion in model container [2020-10-16 01:24:42,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:24:42" (1/1) ... [2020-10-16 01:24:42,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 01:24:42,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 01:24:43,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 01:24:43,392 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 01:24:43,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 01:24:43,563 INFO L208 MainTranslator]: Completed translation [2020-10-16 01:24:43,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:43 WrapperNode [2020-10-16 01:24:43,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 01:24:43,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 01:24:43,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 01:24:43,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 01:24:43,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:43" (1/1) ... [2020-10-16 01:24:43,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:43" (1/1) ... [2020-10-16 01:24:43,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 01:24:43,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 01:24:43,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 01:24:43,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 01:24:43,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:43" (1/1) ... [2020-10-16 01:24:43,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:43" (1/1) ... [2020-10-16 01:24:43,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:43" (1/1) ... [2020-10-16 01:24:43,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:43" (1/1) ... [2020-10-16 01:24:43,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:43" (1/1) ... [2020-10-16 01:24:43,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:43" (1/1) ... [2020-10-16 01:24:43,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:43" (1/1) ... [2020-10-16 01:24:43,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 01:24:43,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 01:24:43,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 01:24:43,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 01:24:43,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:43" (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 01:24:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 01:24:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 01:24:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 01:24:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 01:24:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 01:24:43,735 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 01:24:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 01:24:43,735 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 01:24:43,735 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 01:24:43,735 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 01:24:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-16 01:24:43,736 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-16 01:24:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 01:24:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 01:24:43,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 01:24:43,738 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 01:24:45,525 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 01:24:45,525 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 01:24:45,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:24:45 BoogieIcfgContainer [2020-10-16 01:24:45,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 01:24:45,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 01:24:45,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 01:24:45,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 01:24:45,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:24:42" (1/3) ... [2020-10-16 01:24:45,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8b6e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:24:45, skipping insertion in model container [2020-10-16 01:24:45,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:24:43" (2/3) ... [2020-10-16 01:24:45,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f8b6e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:24:45, skipping insertion in model container [2020-10-16 01:24:45,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:24:45" (3/3) ... [2020-10-16 01:24:45,536 INFO L111 eAbstractionObserver]: Analyzing ICFG mix037_power.opt.i [2020-10-16 01:24:45,548 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 01:24:45,556 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 01:24:45,557 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 01:24:45,589 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,589 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,589 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,589 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,590 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,590 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,591 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,591 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,591 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,591 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,592 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,592 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,592 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,592 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,593 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,593 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,593 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,593 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,593 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,594 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,594 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,594 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,594 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,594 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,595 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,595 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,595 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,595 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,595 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,596 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,596 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,596 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,596 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,596 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,596 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,597 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,597 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,597 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,597 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,597 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,598 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,598 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,598 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,598 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,598 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,598 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,600 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,600 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,602 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,602 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,603 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,603 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,603 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,603 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,603 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,604 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,604 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,604 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,604 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,605 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,605 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,605 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,605 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,605 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,605 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,606 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,606 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,610 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,611 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,611 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,611 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,614 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,614 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,614 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,614 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,615 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,615 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,615 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,615 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,615 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,616 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,616 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,616 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,616 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,616 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,617 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,617 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,617 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,617 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,617 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,618 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,618 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,618 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,618 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,618 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,619 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,619 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,619 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,621 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,621 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,622 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,622 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,622 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,622 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,622 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,623 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,623 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,623 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,623 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,623 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,628 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,629 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:24:45,649 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-16 01:24:45,672 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 01:24:45,672 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 01:24:45,672 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 01:24:45,672 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 01:24:45,672 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 01:24:45,673 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 01:24:45,673 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 01:24:45,673 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 01:24:45,688 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 244 flow [2020-10-16 01:24:45,742 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2020-10-16 01:24:45,743 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:24:45,748 INFO L80 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2020-10-16 01:24:45,749 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 112 transitions, 244 flow [2020-10-16 01:24:45,756 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 108 transitions, 228 flow [2020-10-16 01:24:45,759 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 01:24:45,761 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 108 transitions, 228 flow [2020-10-16 01:24:45,767 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 108 transitions, 228 flow [2020-10-16 01:24:45,767 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 119 places, 108 transitions, 228 flow [2020-10-16 01:24:45,795 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2020-10-16 01:24:45,795 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:24:45,796 INFO L80 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2020-10-16 01:24:45,801 INFO L117 LiptonReduction]: Number of co-enabled transitions 2432 [2020-10-16 01:24:46,012 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:24:46,013 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:24:46,015 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:24:46,015 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:24:46,020 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:24:46,021 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 01:24:46,025 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-16 01:24:46,025 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 01:24:46,050 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-16 01:24:46,051 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:24:46,053 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:24:46,053 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:24:46,057 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:24:46,057 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 01:24:46,061 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-16 01:24:46,062 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 01:24:46,603 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-16 01:24:46,711 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-16 01:24:46,764 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 01:24:46,764 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-10-16 01:24:46,768 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 2, 5, 3, 5, 3, 3, 2, 1] term [2020-10-16 01:24:46,768 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:46,796 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-16 01:24:46,797 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:24:46,816 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 01:24:46,817 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 01:24:46,818 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 01:24:46,819 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 01:24:46,821 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 01:24:46,822 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 01:24:46,824 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-16 01:24:46,825 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:46,826 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 01:24:46,826 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:46,828 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 2, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 01:24:46,828 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:47,079 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-10-16 01:24:47,097 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-16 01:24:47,098 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:24:47,098 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:24:47,099 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:24:47,101 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:24:47,102 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 01:24:47,106 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-16 01:24:47,107 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 01:24:47,131 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-16 01:24:47,131 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:24:47,132 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:24:47,132 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:24:47,134 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:24:47,135 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 01:24:47,137 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-16 01:24:47,137 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 01:24:47,201 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 01:24:47,201 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:24:47,209 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 01:24:47,210 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 01:24:47,212 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 01:24:47,213 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 01:24:47,215 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 01:24:47,215 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 01:24:47,217 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-16 01:24:47,218 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:47,220 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 01:24:47,220 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:47,223 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 01:24:47,223 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:47,275 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 01:24:47,276 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-10-16 01:24:47,279 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 2, 5, 3, 5, 3, 3, 2, 1] term [2020-10-16 01:24:47,279 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:47,534 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 01:24:47,535 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-10-16 01:24:47,538 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 2, 5, 3, 5, 3, 3, 2, 1] term [2020-10-16 01:24:47,539 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:47,603 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-16 01:24:47,604 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:24:47,607 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 01:24:47,608 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 01:24:47,610 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 01:24:47,610 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 01:24:47,611 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 01:24:47,612 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 01:24:47,615 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-16 01:24:47,615 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:47,617 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 01:24:47,618 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:47,619 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 2, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 01:24:47,619 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:48,018 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-16 01:24:48,019 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:48,020 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 4, 4, 3, 3, 2, 1] term [2020-10-16 01:24:48,020 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:48,021 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 4, 4, 3, 3, 2, 1] term [2020-10-16 01:24:48,021 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:48,174 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-16 01:24:48,290 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-16 01:24:48,290 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 01:24:48,297 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 01:24:48,297 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 01:24:48,299 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 01:24:48,300 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 01:24:48,301 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 2, 3, 2, 4, 3, 3, 2, 1] term [2020-10-16 01:24:48,301 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-16 01:24:48,303 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-16 01:24:48,303 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:48,305 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 3, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 01:24:48,306 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:48,307 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 2, 5, 3, 6, 3, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 01:24:48,308 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:48,347 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 2, 4, 3, 4, 3, 3, 2, 1] term [2020-10-16 01:24:48,347 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-10-16 01:24:48,349 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[9, 2, 5, 3, 5, 3, 3, 2, 1] term [2020-10-16 01:24:48,350 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 01:24:49,817 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2020-10-16 01:24:49,985 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-16 01:24:50,320 INFO L132 LiptonReduction]: Checked pairs total: 5749 [2020-10-16 01:24:50,321 INFO L134 LiptonReduction]: Total number of compositions: 91 [2020-10-16 01:24:50,324 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4568 [2020-10-16 01:24:50,335 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2020-10-16 01:24:50,335 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:24:50,336 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:24:50,337 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:24:50,338 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:24:50,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:24:50,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1657424566, now seen corresponding path program 1 times [2020-10-16 01:24:50,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:24:50,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266802709] [2020-10-16 01:24:50,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:24:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:24:50,679 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 01:24:50,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266802709] [2020-10-16 01:24:50,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:24:50,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 01:24:50,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607485187] [2020-10-16 01:24:50,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 01:24:50,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:24:50,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 01:24:50,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 01:24:50,709 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 203 [2020-10-16 01:24:50,711 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 66 flow. Second operand 3 states. [2020-10-16 01:24:50,711 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:24:50,711 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 203 [2020-10-16 01:24:50,713 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:24:50,765 INFO L129 PetriNetUnfolder]: 9/52 cut-off events. [2020-10-16 01:24:50,765 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:24:50,766 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 52 events. 9/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 126 event pairs, 1 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 76. Up to 17 conditions per place. [2020-10-16 01:24:50,767 INFO L132 encePairwiseOnDemand]: 200/203 looper letters, 5 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2020-10-16 01:24:50,768 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 28 transitions, 82 flow [2020-10-16 01:24:50,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 01:24:50,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 01:24:50,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 545 transitions. [2020-10-16 01:24:50,786 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8949096880131363 [2020-10-16 01:24:50,786 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 545 transitions. [2020-10-16 01:24:50,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 545 transitions. [2020-10-16 01:24:50,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:24:50,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 545 transitions. [2020-10-16 01:24:50,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 01:24:50,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 01:24:50,804 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 01:24:50,806 INFO L185 Difference]: Start difference. First operand has 40 places, 27 transitions, 66 flow. Second operand 3 states and 545 transitions. [2020-10-16 01:24:50,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 28 transitions, 82 flow [2020-10-16 01:24:50,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 28 transitions, 78 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-16 01:24:50,811 INFO L241 Difference]: Finished difference. Result has 37 places, 26 transitions, 64 flow [2020-10-16 01:24:50,814 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=37, PETRI_TRANSITIONS=26} [2020-10-16 01:24:50,815 INFO L342 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2020-10-16 01:24:50,815 INFO L481 AbstractCegarLoop]: Abstraction has has 37 places, 26 transitions, 64 flow [2020-10-16 01:24:50,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 01:24:50,815 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:24:50,816 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:24:50,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 01:24:50,816 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:24:50,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:24:50,817 INFO L82 PathProgramCache]: Analyzing trace with hash -647820271, now seen corresponding path program 1 times [2020-10-16 01:24:50,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:24:50,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189706635] [2020-10-16 01:24:50,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:24:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:24:50,870 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 01:24:50,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189706635] [2020-10-16 01:24:50,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:24:50,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 01:24:50,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720556688] [2020-10-16 01:24:50,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 01:24:50,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:24:50,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 01:24:50,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 01:24:50,876 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 203 [2020-10-16 01:24:50,876 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 26 transitions, 64 flow. Second operand 3 states. [2020-10-16 01:24:50,876 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:24:50,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 203 [2020-10-16 01:24:50,877 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:24:50,893 INFO L129 PetriNetUnfolder]: 1/28 cut-off events. [2020-10-16 01:24:50,894 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:24:50,894 INFO L80 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 28 events. 1/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 38. Up to 5 conditions per place. [2020-10-16 01:24:50,894 INFO L132 encePairwiseOnDemand]: 200/203 looper letters, 1 selfloop transitions, 2 changer transitions 2/27 dead transitions. [2020-10-16 01:24:50,895 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 27 transitions, 76 flow [2020-10-16 01:24:50,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 01:24:50,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 01:24:50,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 555 transitions. [2020-10-16 01:24:50,897 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.9113300492610837 [2020-10-16 01:24:50,897 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 555 transitions. [2020-10-16 01:24:50,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 555 transitions. [2020-10-16 01:24:50,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:24:50,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 555 transitions. [2020-10-16 01:24:50,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 01:24:50,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 01:24:50,901 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 01:24:50,901 INFO L185 Difference]: Start difference. First operand has 37 places, 26 transitions, 64 flow. Second operand 3 states and 555 transitions. [2020-10-16 01:24:50,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 27 transitions, 76 flow [2020-10-16 01:24:50,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 27 transitions, 72 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 01:24:50,903 INFO L241 Difference]: Finished difference. Result has 38 places, 25 transitions, 66 flow [2020-10-16 01:24:50,903 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=38, PETRI_TRANSITIONS=25} [2020-10-16 01:24:50,904 INFO L342 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2020-10-16 01:24:50,904 INFO L481 AbstractCegarLoop]: Abstraction has has 38 places, 25 transitions, 66 flow [2020-10-16 01:24:50,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 01:24:50,904 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:24:50,904 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:24:50,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 01:24:50,905 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:24:50,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:24:50,905 INFO L82 PathProgramCache]: Analyzing trace with hash 204869870, now seen corresponding path program 1 times [2020-10-16 01:24:50,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:24:50,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61677850] [2020-10-16 01:24:50,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:24:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:24:50,958 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 01:24:50,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61677850] [2020-10-16 01:24:50,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:24:50,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 01:24:50,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804309695] [2020-10-16 01:24:50,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 01:24:50,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:24:50,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 01:24:50,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 01:24:50,962 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 203 [2020-10-16 01:24:50,962 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 66 flow. Second operand 3 states. [2020-10-16 01:24:50,962 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:24:50,962 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 203 [2020-10-16 01:24:50,963 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:24:50,977 INFO L129 PetriNetUnfolder]: 3/35 cut-off events. [2020-10-16 01:24:50,977 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 01:24:50,978 INFO L80 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 35 events. 3/35 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 1 based on Foata normal form. 1/34 useless extension candidates. Maximal degree in co-relation 53. Up to 10 conditions per place. [2020-10-16 01:24:50,978 INFO L132 encePairwiseOnDemand]: 199/203 looper letters, 3 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2020-10-16 01:24:50,979 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 27 transitions, 82 flow [2020-10-16 01:24:50,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 01:24:50,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 01:24:50,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 553 transitions. [2020-10-16 01:24:50,981 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.9080459770114943 [2020-10-16 01:24:50,981 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 553 transitions. [2020-10-16 01:24:50,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 553 transitions. [2020-10-16 01:24:50,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:24:50,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 553 transitions. [2020-10-16 01:24:50,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 01:24:50,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 01:24:50,984 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 01:24:50,984 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 66 flow. Second operand 3 states and 553 transitions. [2020-10-16 01:24:50,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 27 transitions, 82 flow [2020-10-16 01:24:50,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 27 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 01:24:50,986 INFO L241 Difference]: Finished difference. Result has 38 places, 27 transitions, 81 flow [2020-10-16 01:24:50,986 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2020-10-16 01:24:50,987 INFO L342 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2020-10-16 01:24:50,987 INFO L481 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 81 flow [2020-10-16 01:24:50,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 01:24:50,987 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:24:50,987 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:24:50,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 01:24:50,987 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:24:50,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:24:50,988 INFO L82 PathProgramCache]: Analyzing trace with hash 495769329, now seen corresponding path program 1 times [2020-10-16 01:24:50,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:24:50,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207928234] [2020-10-16 01:24:50,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:24:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:24:51,070 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 01:24:51,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207928234] [2020-10-16 01:24:51,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:24:51,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 01:24:51,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287200850] [2020-10-16 01:24:51,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:24:51,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:24:51,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:24:51,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:24:51,074 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 203 [2020-10-16 01:24:51,074 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 81 flow. Second operand 4 states. [2020-10-16 01:24:51,075 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:24:51,075 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 203 [2020-10-16 01:24:51,075 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:24:51,157 INFO L129 PetriNetUnfolder]: 138/271 cut-off events. [2020-10-16 01:24:51,157 INFO L130 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2020-10-16 01:24:51,159 INFO L80 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 271 events. 138/271 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1324 event pairs, 71 based on Foata normal form. 20/255 useless extension candidates. Maximal degree in co-relation 554. Up to 160 conditions per place. [2020-10-16 01:24:51,161 INFO L132 encePairwiseOnDemand]: 196/203 looper letters, 9 selfloop transitions, 9 changer transitions 2/40 dead transitions. [2020-10-16 01:24:51,162 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 40 transitions, 147 flow [2020-10-16 01:24:51,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 01:24:51,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 01:24:51,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 877 transitions. [2020-10-16 01:24:51,165 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.864039408866995 [2020-10-16 01:24:51,165 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 877 transitions. [2020-10-16 01:24:51,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 877 transitions. [2020-10-16 01:24:51,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:24:51,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 877 transitions. [2020-10-16 01:24:51,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 01:24:51,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 01:24:51,170 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 01:24:51,170 INFO L185 Difference]: Start difference. First operand has 38 places, 27 transitions, 81 flow. Second operand 5 states and 877 transitions. [2020-10-16 01:24:51,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 40 transitions, 147 flow [2020-10-16 01:24:51,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 40 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 01:24:51,173 INFO L241 Difference]: Finished difference. Result has 44 places, 35 transitions, 147 flow [2020-10-16 01:24:51,173 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=147, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2020-10-16 01:24:51,173 INFO L342 CegarLoopForPetriNet]: 40 programPoint places, 4 predicate places. [2020-10-16 01:24:51,173 INFO L481 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 147 flow [2020-10-16 01:24:51,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:24:51,173 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:24:51,174 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:24:51,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 01:24:51,174 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:24:51,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:24:51,174 INFO L82 PathProgramCache]: Analyzing trace with hash -306087973, now seen corresponding path program 1 times [2020-10-16 01:24:51,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:24:51,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590729940] [2020-10-16 01:24:51,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:24:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:24:51,208 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 01:24:51,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590729940] [2020-10-16 01:24:51,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:24:51,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 01:24:51,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243788228] [2020-10-16 01:24:51,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 01:24:51,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:24:51,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 01:24:51,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 01:24:51,212 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 203 [2020-10-16 01:24:51,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 147 flow. Second operand 3 states. [2020-10-16 01:24:51,212 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:24:51,212 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 203 [2020-10-16 01:24:51,212 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:24:51,264 INFO L129 PetriNetUnfolder]: 177/341 cut-off events. [2020-10-16 01:24:51,264 INFO L130 PetriNetUnfolder]: For 306/449 co-relation queries the response was YES. [2020-10-16 01:24:51,266 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1004 conditions, 341 events. 177/341 cut-off events. For 306/449 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 1796 event pairs, 95 based on Foata normal form. 21/317 useless extension candidates. Maximal degree in co-relation 989. Up to 261 conditions per place. [2020-10-16 01:24:51,268 INFO L132 encePairwiseOnDemand]: 200/203 looper letters, 3 selfloop transitions, 3 changer transitions 4/35 dead transitions. [2020-10-16 01:24:51,268 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 35 transitions, 159 flow [2020-10-16 01:24:51,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 01:24:51,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 01:24:51,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 552 transitions. [2020-10-16 01:24:51,271 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.9064039408866995 [2020-10-16 01:24:51,271 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 552 transitions. [2020-10-16 01:24:51,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 552 transitions. [2020-10-16 01:24:51,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:24:51,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 552 transitions. [2020-10-16 01:24:51,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 01:24:51,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 01:24:51,274 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 01:24:51,274 INFO L185 Difference]: Start difference. First operand has 44 places, 35 transitions, 147 flow. Second operand 3 states and 552 transitions. [2020-10-16 01:24:51,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 35 transitions, 159 flow [2020-10-16 01:24:51,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 35 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 01:24:51,277 INFO L241 Difference]: Finished difference. Result has 46 places, 31 transitions, 129 flow [2020-10-16 01:24:51,277 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=46, PETRI_TRANSITIONS=31} [2020-10-16 01:24:51,278 INFO L342 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2020-10-16 01:24:51,278 INFO L481 AbstractCegarLoop]: Abstraction has has 46 places, 31 transitions, 129 flow [2020-10-16 01:24:51,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 01:24:51,278 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:24:51,278 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:24:51,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 01:24:51,279 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:24:51,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:24:51,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1266255660, now seen corresponding path program 1 times [2020-10-16 01:24:51,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:24:51,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637161387] [2020-10-16 01:24:51,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:24:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:24:51,353 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 01:24:51,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637161387] [2020-10-16 01:24:51,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:24:51,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 01:24:51,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233282258] [2020-10-16 01:24:51,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 01:24:51,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:24:51,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 01:24:51,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 01:24:51,356 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 203 [2020-10-16 01:24:51,357 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 31 transitions, 129 flow. Second operand 5 states. [2020-10-16 01:24:51,357 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:24:51,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 203 [2020-10-16 01:24:51,357 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:24:51,457 INFO L129 PetriNetUnfolder]: 133/273 cut-off events. [2020-10-16 01:24:51,457 INFO L130 PetriNetUnfolder]: For 267/506 co-relation queries the response was YES. [2020-10-16 01:24:51,458 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1021 conditions, 273 events. 133/273 cut-off events. For 267/506 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1277 event pairs, 29 based on Foata normal form. 36/279 useless extension candidates. Maximal degree in co-relation 1005. Up to 213 conditions per place. [2020-10-16 01:24:51,460 INFO L132 encePairwiseOnDemand]: 196/203 looper letters, 6 selfloop transitions, 9 changer transitions 9/44 dead transitions. [2020-10-16 01:24:51,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 44 transitions, 253 flow [2020-10-16 01:24:51,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 01:24:51,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-16 01:24:51,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1052 transitions. [2020-10-16 01:24:51,464 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8637110016420362 [2020-10-16 01:24:51,464 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1052 transitions. [2020-10-16 01:24:51,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1052 transitions. [2020-10-16 01:24:51,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:24:51,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1052 transitions. [2020-10-16 01:24:51,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-16 01:24:51,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-16 01:24:51,470 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-16 01:24:51,470 INFO L185 Difference]: Start difference. First operand has 46 places, 31 transitions, 129 flow. Second operand 6 states and 1052 transitions. [2020-10-16 01:24:51,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 44 transitions, 253 flow [2020-10-16 01:24:51,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 44 transitions, 246 flow, removed 2 selfloop flow, removed 2 redundant places. [2020-10-16 01:24:51,473 INFO L241 Difference]: Finished difference. Result has 50 places, 35 transitions, 194 flow [2020-10-16 01:24:51,474 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=194, PETRI_PLACES=50, PETRI_TRANSITIONS=35} [2020-10-16 01:24:51,474 INFO L342 CegarLoopForPetriNet]: 40 programPoint places, 10 predicate places. [2020-10-16 01:24:51,474 INFO L481 AbstractCegarLoop]: Abstraction has has 50 places, 35 transitions, 194 flow [2020-10-16 01:24:51,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 01:24:51,474 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:24:51,475 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:24:51,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 01:24:51,475 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:24:51,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:24:51,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1823041479, now seen corresponding path program 1 times [2020-10-16 01:24:51,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:24:51,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819130571] [2020-10-16 01:24:51,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:24:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:24:51,565 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 01:24:51,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819130571] [2020-10-16 01:24:51,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:24:51,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 01:24:51,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543537980] [2020-10-16 01:24:51,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 01:24:51,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:24:51,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 01:24:51,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 01:24:51,570 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 203 [2020-10-16 01:24:51,571 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 35 transitions, 194 flow. Second operand 6 states. [2020-10-16 01:24:51,571 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:24:51,571 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 203 [2020-10-16 01:24:51,571 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:24:51,668 INFO L129 PetriNetUnfolder]: 71/168 cut-off events. [2020-10-16 01:24:51,669 INFO L130 PetriNetUnfolder]: For 390/645 co-relation queries the response was YES. [2020-10-16 01:24:51,669 INFO L80 FinitePrefix]: Finished finitePrefix Result has 854 conditions, 168 events. 71/168 cut-off events. For 390/645 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 662 event pairs, 4 based on Foata normal form. 37/188 useless extension candidates. Maximal degree in co-relation 835. Up to 131 conditions per place. [2020-10-16 01:24:51,670 INFO L132 encePairwiseOnDemand]: 196/203 looper letters, 6 selfloop transitions, 13 changer transitions 9/48 dead transitions. [2020-10-16 01:24:51,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 48 transitions, 376 flow [2020-10-16 01:24:51,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 01:24:51,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 01:24:51,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1227 transitions. [2020-10-16 01:24:51,675 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8634764250527798 [2020-10-16 01:24:51,675 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1227 transitions. [2020-10-16 01:24:51,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1227 transitions. [2020-10-16 01:24:51,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:24:51,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1227 transitions. [2020-10-16 01:24:51,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 01:24:51,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 01:24:51,681 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 01:24:51,681 INFO L185 Difference]: Start difference. First operand has 50 places, 35 transitions, 194 flow. Second operand 7 states and 1227 transitions. [2020-10-16 01:24:51,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 48 transitions, 376 flow [2020-10-16 01:24:51,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 48 transitions, 314 flow, removed 26 selfloop flow, removed 4 redundant places. [2020-10-16 01:24:51,685 INFO L241 Difference]: Finished difference. Result has 53 places, 39 transitions, 244 flow [2020-10-16 01:24:51,686 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=244, PETRI_PLACES=53, PETRI_TRANSITIONS=39} [2020-10-16 01:24:51,686 INFO L342 CegarLoopForPetriNet]: 40 programPoint places, 13 predicate places. [2020-10-16 01:24:51,686 INFO L481 AbstractCegarLoop]: Abstraction has has 53 places, 39 transitions, 244 flow [2020-10-16 01:24:51,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 01:24:51,686 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:24:51,686 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:24:51,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 01:24:51,687 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:24:51,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:24:51,687 INFO L82 PathProgramCache]: Analyzing trace with hash 780748223, now seen corresponding path program 1 times [2020-10-16 01:24:51,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:24:51,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320633972] [2020-10-16 01:24:51,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:24:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:24:51,798 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 01:24:51,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320633972] [2020-10-16 01:24:51,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:24:51,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 01:24:51,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542628928] [2020-10-16 01:24:51,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 01:24:51,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:24:51,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 01:24:51,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 01:24:51,802 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 203 [2020-10-16 01:24:51,802 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 39 transitions, 244 flow. Second operand 7 states. [2020-10-16 01:24:51,803 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:24:51,803 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 203 [2020-10-16 01:24:51,803 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:24:51,905 INFO L129 PetriNetUnfolder]: 39/102 cut-off events. [2020-10-16 01:24:51,906 INFO L130 PetriNetUnfolder]: For 299/501 co-relation queries the response was YES. [2020-10-16 01:24:51,906 INFO L80 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 102 events. 39/102 cut-off events. For 299/501 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 301 event pairs, 0 based on Foata normal form. 29/116 useless extension candidates. Maximal degree in co-relation 494. Up to 73 conditions per place. [2020-10-16 01:24:51,907 INFO L132 encePairwiseOnDemand]: 196/203 looper letters, 2 selfloop transitions, 17 changer transitions 5/44 dead transitions. [2020-10-16 01:24:51,908 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 44 transitions, 348 flow [2020-10-16 01:24:51,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-16 01:24:51,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-16 01:24:51,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1394 transitions. [2020-10-16 01:24:51,913 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8583743842364532 [2020-10-16 01:24:51,913 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1394 transitions. [2020-10-16 01:24:51,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1394 transitions. [2020-10-16 01:24:51,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:24:51,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1394 transitions. [2020-10-16 01:24:51,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-10-16 01:24:51,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 9 states. [2020-10-16 01:24:51,921 INFO L81 ComplementDD]: Finished complementDD. Result 9 states. [2020-10-16 01:24:51,922 INFO L185 Difference]: Start difference. First operand has 53 places, 39 transitions, 244 flow. Second operand 8 states and 1394 transitions. [2020-10-16 01:24:51,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 44 transitions, 348 flow [2020-10-16 01:24:51,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 44 transitions, 280 flow, removed 24 selfloop flow, removed 6 redundant places. [2020-10-16 01:24:51,926 INFO L241 Difference]: Finished difference. Result has 55 places, 39 transitions, 232 flow [2020-10-16 01:24:51,926 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=232, PETRI_PLACES=55, PETRI_TRANSITIONS=39} [2020-10-16 01:24:51,926 INFO L342 CegarLoopForPetriNet]: 40 programPoint places, 15 predicate places. [2020-10-16 01:24:51,926 INFO L481 AbstractCegarLoop]: Abstraction has has 55 places, 39 transitions, 232 flow [2020-10-16 01:24:51,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 01:24:51,927 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:24:51,927 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:24:51,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 01:24:51,927 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:24:51,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:24:51,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1531980950, now seen corresponding path program 1 times [2020-10-16 01:24:51,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:24:51,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550352905] [2020-10-16 01:24:51,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:24:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:24:52,018 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 01:24:52,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550352905] [2020-10-16 01:24:52,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:24:52,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 01:24:52,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272119988] [2020-10-16 01:24:52,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:24:52,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:24:52,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:24:52,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:24:52,024 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 203 [2020-10-16 01:24:52,024 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 39 transitions, 232 flow. Second operand 4 states. [2020-10-16 01:24:52,025 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:24:52,025 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 203 [2020-10-16 01:24:52,025 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:24:52,065 INFO L129 PetriNetUnfolder]: 65/153 cut-off events. [2020-10-16 01:24:52,065 INFO L130 PetriNetUnfolder]: For 353/423 co-relation queries the response was YES. [2020-10-16 01:24:52,066 INFO L80 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 153 events. 65/153 cut-off events. For 353/423 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 595 event pairs, 0 based on Foata normal form. 2/132 useless extension candidates. Maximal degree in co-relation 550. Up to 69 conditions per place. [2020-10-16 01:24:52,067 INFO L132 encePairwiseOnDemand]: 200/203 looper letters, 3 selfloop transitions, 1 changer transitions 1/40 dead transitions. [2020-10-16 01:24:52,067 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 40 transitions, 244 flow [2020-10-16 01:24:52,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 01:24:52,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 01:24:52,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 726 transitions. [2020-10-16 01:24:52,070 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8940886699507389 [2020-10-16 01:24:52,070 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 726 transitions. [2020-10-16 01:24:52,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 726 transitions. [2020-10-16 01:24:52,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:24:52,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 726 transitions. [2020-10-16 01:24:52,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 01:24:52,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 01:24:52,101 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 01:24:52,101 INFO L185 Difference]: Start difference. First operand has 55 places, 39 transitions, 232 flow. Second operand 4 states and 726 transitions. [2020-10-16 01:24:52,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 40 transitions, 244 flow [2020-10-16 01:24:52,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 40 transitions, 180 flow, removed 19 selfloop flow, removed 7 redundant places. [2020-10-16 01:24:52,108 INFO L241 Difference]: Finished difference. Result has 51 places, 39 transitions, 175 flow [2020-10-16 01:24:52,108 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=175, PETRI_PLACES=51, PETRI_TRANSITIONS=39} [2020-10-16 01:24:52,108 INFO L342 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2020-10-16 01:24:52,108 INFO L481 AbstractCegarLoop]: Abstraction has has 51 places, 39 transitions, 175 flow [2020-10-16 01:24:52,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:24:52,109 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:24:52,109 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:24:52,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 01:24:52,109 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:24:52,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:24:52,110 INFO L82 PathProgramCache]: Analyzing trace with hash 393899410, now seen corresponding path program 2 times [2020-10-16 01:24:52,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:24:52,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576087093] [2020-10-16 01:24:52,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:24:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:24:52,253 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 01:24:52,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576087093] [2020-10-16 01:24:52,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:24:52,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 01:24:52,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524957311] [2020-10-16 01:24:52,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 01:24:52,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:24:52,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 01:24:52,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 01:24:52,257 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 203 [2020-10-16 01:24:52,258 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 175 flow. Second operand 5 states. [2020-10-16 01:24:52,258 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:24:52,258 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 203 [2020-10-16 01:24:52,258 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:24:52,372 INFO L129 PetriNetUnfolder]: 115/253 cut-off events. [2020-10-16 01:24:52,372 INFO L130 PetriNetUnfolder]: For 234/242 co-relation queries the response was YES. [2020-10-16 01:24:52,374 INFO L80 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 253 events. 115/253 cut-off events. For 234/242 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1210 event pairs, 0 based on Foata normal form. 2/214 useless extension candidates. Maximal degree in co-relation 702. Up to 91 conditions per place. [2020-10-16 01:24:52,375 INFO L132 encePairwiseOnDemand]: 198/203 looper letters, 5 selfloop transitions, 5 changer transitions 1/44 dead transitions. [2020-10-16 01:24:52,376 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 44 transitions, 207 flow [2020-10-16 01:24:52,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 01:24:52,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-16 01:24:52,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 942 transitions. [2020-10-16 01:24:52,379 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7733990147783252 [2020-10-16 01:24:52,380 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 942 transitions. [2020-10-16 01:24:52,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 942 transitions. [2020-10-16 01:24:52,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:24:52,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 942 transitions. [2020-10-16 01:24:52,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-16 01:24:52,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-16 01:24:52,386 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-16 01:24:52,386 INFO L185 Difference]: Start difference. First operand has 51 places, 39 transitions, 175 flow. Second operand 6 states and 942 transitions. [2020-10-16 01:24:52,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 44 transitions, 207 flow [2020-10-16 01:24:52,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 44 transitions, 204 flow, removed 1 selfloop flow, removed 2 redundant places. [2020-10-16 01:24:52,391 INFO L241 Difference]: Finished difference. Result has 57 places, 43 transitions, 207 flow [2020-10-16 01:24:52,391 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=207, PETRI_PLACES=57, PETRI_TRANSITIONS=43} [2020-10-16 01:24:52,392 INFO L342 CegarLoopForPetriNet]: 40 programPoint places, 17 predicate places. [2020-10-16 01:24:52,392 INFO L481 AbstractCegarLoop]: Abstraction has has 57 places, 43 transitions, 207 flow [2020-10-16 01:24:52,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 01:24:52,392 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:24:52,392 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:24:52,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 01:24:52,392 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:24:52,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:24:52,393 INFO L82 PathProgramCache]: Analyzing trace with hash 697911832, now seen corresponding path program 3 times [2020-10-16 01:24:52,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:24:52,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126514241] [2020-10-16 01:24:52,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:24:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:24:52,445 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 01:24:52,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126514241] [2020-10-16 01:24:52,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:24:52,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 01:24:52,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983375409] [2020-10-16 01:24:52,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:24:52,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:24:52,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:24:52,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:24:52,449 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 203 [2020-10-16 01:24:52,449 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 43 transitions, 207 flow. Second operand 4 states. [2020-10-16 01:24:52,450 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:24:52,450 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 203 [2020-10-16 01:24:52,450 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:24:52,518 INFO L129 PetriNetUnfolder]: 213/456 cut-off events. [2020-10-16 01:24:52,518 INFO L130 PetriNetUnfolder]: For 434/451 co-relation queries the response was YES. [2020-10-16 01:24:52,521 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1316 conditions, 456 events. 213/456 cut-off events. For 434/451 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 2623 event pairs, 0 based on Foata normal form. 2/385 useless extension candidates. Maximal degree in co-relation 1298. Up to 168 conditions per place. [2020-10-16 01:24:52,522 INFO L132 encePairwiseOnDemand]: 200/203 looper letters, 3 selfloop transitions, 1 changer transitions 5/44 dead transitions. [2020-10-16 01:24:52,522 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 44 transitions, 219 flow [2020-10-16 01:24:52,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 01:24:52,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 01:24:52,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 710 transitions. [2020-10-16 01:24:52,526 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.874384236453202 [2020-10-16 01:24:52,526 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 710 transitions. [2020-10-16 01:24:52,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 710 transitions. [2020-10-16 01:24:52,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:24:52,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 710 transitions. [2020-10-16 01:24:52,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 01:24:52,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 01:24:52,530 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 01:24:52,530 INFO L185 Difference]: Start difference. First operand has 57 places, 43 transitions, 207 flow. Second operand 4 states and 710 transitions. [2020-10-16 01:24:52,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 44 transitions, 219 flow [2020-10-16 01:24:52,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 44 transitions, 217 flow, removed 1 selfloop flow, removed 1 redundant places. [2020-10-16 01:24:52,541 INFO L241 Difference]: Finished difference. Result has 60 places, 39 transitions, 193 flow [2020-10-16 01:24:52,541 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=193, PETRI_PLACES=60, PETRI_TRANSITIONS=39} [2020-10-16 01:24:52,541 INFO L342 CegarLoopForPetriNet]: 40 programPoint places, 20 predicate places. [2020-10-16 01:24:52,541 INFO L481 AbstractCegarLoop]: Abstraction has has 60 places, 39 transitions, 193 flow [2020-10-16 01:24:52,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:24:52,542 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:24:52,542 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:24:52,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 01:24:52,542 INFO L429 AbstractCegarLoop]: === Iteration 12 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:24:52,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:24:52,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1071490168, now seen corresponding path program 4 times [2020-10-16 01:24:52,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:24:52,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083684793] [2020-10-16 01:24:52,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:24:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 01:24:52,577 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 01:24:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 01:24:52,617 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 01:24:52,678 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 01:24:52,678 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 01:24:52,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 01:24:52,680 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 01:24:52,698 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [876] [876] L2-->L863: Formula: (let ((.cse7 (= (mod ~z$w_buff0_used~0_In-252334171 256) 0)) (.cse6 (= (mod ~z$r_buff0_thd0~0_In-252334171 256) 0)) (.cse8 (= (mod ~z$r_buff1_thd0~0_In-252334171 256) 0)) (.cse9 (= (mod ~z$w_buff1_used~0_In-252334171 256) 0))) (let ((.cse0 (or .cse8 .cse9)) (.cse1 (not .cse9)) (.cse2 (not .cse8)) (.cse3 (or .cse7 .cse6)) (.cse4 (not .cse7)) (.cse5 (not .cse6))) (and (or (and (or (and (= ~z~0_In-252334171 ~z~0_Out-252334171) .cse0) (and .cse1 .cse2 (= ~z~0_Out-252334171 ~z$w_buff1~0_In-252334171))) .cse3) (and .cse4 .cse5 (= ~z~0_Out-252334171 ~z$w_buff0~0_In-252334171))) (or (and (= ~z$w_buff1_used~0_Out-252334171 ~z$w_buff1_used~0_In-252334171) .cse0) (and .cse1 .cse2 (= ~z$w_buff1_used~0_Out-252334171 0))) (or (and (= ~z$w_buff0_used~0_In-252334171 ~z$w_buff0_used~0_Out-252334171) .cse3) (and .cse4 .cse5 (= ~z$w_buff0_used~0_Out-252334171 0))) (= ~z$r_buff1_thd0~0_In-252334171 ~z$r_buff1_thd0~0_Out-252334171) (= ULTIMATE.start_assume_abort_if_not_~cond_Out-252334171 |ULTIMATE.start_assume_abort_if_not_#in~cond_In-252334171|) (= ~z$r_buff0_thd0~0_In-252334171 ~z$r_buff0_thd0~0_Out-252334171) (not (= ULTIMATE.start_assume_abort_if_not_~cond_Out-252334171 0))))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In-252334171|, ~z$r_buff0_thd0~0=~z$r_buff0_thd0~0_In-252334171, ~z$w_buff0_used~0=~z$w_buff0_used~0_In-252334171, ~z$w_buff0~0=~z$w_buff0~0_In-252334171, ~z$r_buff1_thd0~0=~z$r_buff1_thd0~0_In-252334171, ~z$w_buff1_used~0=~z$w_buff1_used~0_In-252334171, ~z$w_buff1~0=~z$w_buff1~0_In-252334171, ~z~0=~z~0_In-252334171} OutVars{~z$w_buff0_used~0=~z$w_buff0_used~0_Out-252334171, ULTIMATE.start_main_#t~ite39=|ULTIMATE.start_main_#t~ite39_Out-252334171|, ~z$w_buff0~0=~z$w_buff0~0_In-252334171, ~z$w_buff1_used~0=~z$w_buff1_used~0_Out-252334171, ULTIMATE.start_main_#t~ite35=|ULTIMATE.start_main_#t~ite35_Out-252334171|, ULTIMATE.start_main_#t~ite36=|ULTIMATE.start_main_#t~ite36_Out-252334171|, ~z$w_buff1~0=~z$w_buff1~0_In-252334171, ULTIMATE.start_main_#t~ite38=|ULTIMATE.start_main_#t~ite38_Out-252334171|, ULTIMATE.start_main_#t~ite37=|ULTIMATE.start_main_#t~ite37_Out-252334171|, ULTIMATE.start_assume_abort_if_not_#in~cond=|ULTIMATE.start_assume_abort_if_not_#in~cond_In-252334171|, ~z$r_buff0_thd0~0=~z$r_buff0_thd0~0_Out-252334171, ULTIMATE.start_main_#t~ite40=|ULTIMATE.start_main_#t~ite40_Out-252334171|, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_Out-252334171, ~z$r_buff1_thd0~0=~z$r_buff1_thd0~0_Out-252334171, ~z~0=~z~0_Out-252334171} AuxVars[] AssignedVars[~z$r_buff0_thd0~0, ULTIMATE.start_main_#t~ite40, ULTIMATE.start_assume_abort_if_not_~cond, ~z$w_buff0_used~0, ULTIMATE.start_main_#t~ite39, ~z$r_buff1_thd0~0, ~z$w_buff1_used~0, ULTIMATE.start_main_#t~ite35, ULTIMATE.start_main_#t~ite36, ULTIMATE.start_main_#t~ite38, ULTIMATE.start_main_#t~ite37, ~z~0] because there is no mapped edge [2020-10-16 01:24:52,705 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:24:52,705 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:24:52,708 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:24:52,708 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:24:52,709 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:24:52,709 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:24:52,709 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:24:52,709 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:24:52,709 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:24:52,709 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:24:52,710 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:24:52,710 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:24:52,710 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:24:52,710 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:24:52,710 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:24:52,711 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:24:52,711 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:24:52,711 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:24:52,711 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:24:52,711 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:24:52,712 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:24:52,712 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:24:52,712 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:24:52,712 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:24:52,713 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:24:52,713 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:24:52,713 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:24:52,713 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:24:52,713 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:24:52,714 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:24:52,714 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:24:52,714 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:24:52,714 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 01:24:52,714 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 01:24:52,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:24:52 BasicIcfg [2020-10-16 01:24:52,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 01:24:52,806 INFO L168 Benchmark]: Toolchain (without parser) took 10052.89 ms. Allocated memory was 251.7 MB in the beginning and 505.9 MB in the end (delta: 254.3 MB). Free memory was 206.2 MB in the beginning and 324.7 MB in the end (delta: -118.6 MB). Peak memory consumption was 135.7 MB. Max. memory is 14.2 GB. [2020-10-16 01:24:52,806 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 251.7 MB. Free memory is still 228.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 01:24:52,807 INFO L168 Benchmark]: CACSL2BoogieTranslator took 807.82 ms. Allocated memory was 251.7 MB in the beginning and 316.7 MB in the end (delta: 65.0 MB). Free memory was 206.2 MB in the beginning and 266.8 MB in the end (delta: -60.7 MB). Peak memory consumption was 33.8 MB. Max. memory is 14.2 GB. [2020-10-16 01:24:52,808 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.52 ms. Allocated memory is still 316.7 MB. Free memory was 266.8 MB in the beginning and 264.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 01:24:52,808 INFO L168 Benchmark]: Boogie Preprocessor took 37.53 ms. Allocated memory is still 316.7 MB. Free memory was 264.3 MB in the beginning and 261.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 01:24:52,813 INFO L168 Benchmark]: RCFGBuilder took 1866.48 ms. Allocated memory was 316.7 MB in the beginning and 358.6 MB in the end (delta: 41.9 MB). Free memory was 261.8 MB in the beginning and 234.9 MB in the end (delta: 26.9 MB). Peak memory consumption was 99.2 MB. Max. memory is 14.2 GB. [2020-10-16 01:24:52,814 INFO L168 Benchmark]: TraceAbstraction took 7274.71 ms. Allocated memory was 358.6 MB in the beginning and 505.9 MB in the end (delta: 147.3 MB). Free memory was 234.9 MB in the beginning and 324.7 MB in the end (delta: -89.9 MB). Peak memory consumption was 57.5 MB. Max. memory is 14.2 GB. [2020-10-16 01:24:52,821 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 251.7 MB. Free memory is still 228.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 807.82 ms. Allocated memory was 251.7 MB in the beginning and 316.7 MB in the end (delta: 65.0 MB). Free memory was 206.2 MB in the beginning and 266.8 MB in the end (delta: -60.7 MB). Peak memory consumption was 33.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 58.52 ms. Allocated memory is still 316.7 MB. Free memory was 266.8 MB in the beginning and 264.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 37.53 ms. Allocated memory is still 316.7 MB. Free memory was 264.3 MB in the beginning and 261.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 1866.48 ms. Allocated memory was 316.7 MB in the beginning and 358.6 MB in the end (delta: 41.9 MB). Free memory was 261.8 MB in the beginning and 234.9 MB in the end (delta: 26.9 MB). Peak memory consumption was 99.2 MB. Max. memory is 14.2 GB. * TraceAbstraction took 7274.71 ms. Allocated memory was 358.6 MB in the beginning and 505.9 MB in the end (delta: 147.3 MB). Free memory was 234.9 MB in the beginning and 324.7 MB in the end (delta: -89.9 MB). Peak memory consumption was 57.5 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1542 VarBasedMoverChecksPositive, 79 VarBasedMoverChecksNegative, 15 SemBasedMoverChecksPositive, 64 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.4s, 171 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.5s, 119 PlacesBefore, 40 PlacesAfterwards, 108 TransitionsBefore, 27 TransitionsAfterwards, 2432 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 91 TotalNumberOfCompositions, 5749 MoverChecksTotal - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L699] 0 int __unbuffered_cnt = 0; [L701] 0 int __unbuffered_p1_EAX = 0; [L703] 0 int __unbuffered_p2_EAX = 0; [L705] 0 int __unbuffered_p3_EAX = 0; [L707] 0 int __unbuffered_p3_EBX = 0; [L709] 0 int a = 0; [L711] 0 int b = 0; [L712] 0 _Bool main$tmp_guard0; [L713] 0 _Bool main$tmp_guard1; [L715] 0 int x = 0; [L717] 0 int y = 0; [L719] 0 int z = 0; [L720] 0 _Bool z$flush_delayed; [L721] 0 int z$mem_tmp; [L722] 0 _Bool z$r_buff0_thd0; [L723] 0 _Bool z$r_buff0_thd1; [L724] 0 _Bool z$r_buff0_thd2; [L725] 0 _Bool z$r_buff0_thd3; [L726] 0 _Bool z$r_buff0_thd4; [L727] 0 _Bool z$r_buff1_thd0; [L728] 0 _Bool z$r_buff1_thd1; [L729] 0 _Bool z$r_buff1_thd2; [L730] 0 _Bool z$r_buff1_thd3; [L731] 0 _Bool z$r_buff1_thd4; [L732] 0 _Bool z$read_delayed; [L733] 0 int *z$read_delayed_var; [L734] 0 int z$w_buff0; [L735] 0 _Bool z$w_buff0_used; [L736] 0 int z$w_buff1; [L737] 0 _Bool z$w_buff1_used; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L845] 0 pthread_t t973; [L846] FCALL, FORK 0 pthread_create(&t973, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L847] 0 pthread_t t974; [L848] FCALL, FORK 0 pthread_create(&t974, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L849] 0 pthread_t t975; [L850] FCALL, FORK 0 pthread_create(&t975, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L851] 0 pthread_t t976; [L852] FCALL, FORK 0 pthread_create(&t976, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L801] 4 z$w_buff1 = z$w_buff0 [L802] 4 z$w_buff0 = 1 [L803] 4 z$w_buff1_used = z$w_buff0_used [L804] 4 z$w_buff0_used = (_Bool)1 [L7] COND TRUE 4 !expression [L7] 4 __VERIFIER_error() [L806] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L807] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L808] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L809] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L810] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L811] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L814] 4 a = 1 [L817] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L820] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L743] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L746] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L758] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L761] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L751] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L753] 1 return 0; [L766] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L768] 2 return 0; [L773] 3 y = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L776] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L777] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L778] 3 z$flush_delayed = weak$$choice2 [L779] 3 z$mem_tmp = z [L780] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L780] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L781] EXPR 3 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L781] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0) [L781] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0 [L781] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0) [L781] EXPR 3 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L781] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L782] EXPR 3 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L782] EXPR 3 !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1) [L782] EXPR 3 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L782] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L783] EXPR 3 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L783] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L784] EXPR 3 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L784] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L785] EXPR 3 weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L785] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L786] EXPR 3 weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L786] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L787] 3 __unbuffered_p2_EAX = z [L788] EXPR 3 z$flush_delayed ? z$mem_tmp : z [L788] 3 z = z$flush_delayed ? z$mem_tmp : z [L789] 3 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=9, weak$$choice2=255, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L794] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L796] 3 return 0; [L823] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L823] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L824] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L824] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L825] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L825] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L826] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L826] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L827] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L827] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L830] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L832] 4 return 0; [L854] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L865] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L7] COND TRUE 0 !expression [L7] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=9, weak$$choice2=255, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 111 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 7.0s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 38 SDtfs, 21 SDslu, 23 SDs, 0 SdLazy, 216 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 12116 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...