/usr/bin/java -Xmx8000000000 -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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix034_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 23:32:25,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 23:32:25,348 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 23:32:25,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 23:32:25,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 23:32:25,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 23:32:25,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 23:32:25,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 23:32:25,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 23:32:25,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 23:32:25,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 23:32:25,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 23:32:25,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 23:32:25,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 23:32:25,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 23:32:25,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 23:32:25,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 23:32:25,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 23:32:25,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 23:32:25,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 23:32:25,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 23:32:25,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 23:32:25,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 23:32:25,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 23:32:25,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 23:32:25,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 23:32:25,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 23:32:25,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 23:32:25,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 23:32:25,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 23:32:25,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 23:32:25,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 23:32:25,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 23:32:25,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 23:32:25,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 23:32:25,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 23:32:25,406 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-05 23:32:25,442 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 23:32:25,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 23:32:25,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 23:32:25,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 23:32:25,444 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 23:32:25,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 23:32:25,447 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 23:32:25,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 23:32:25,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 23:32:25,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 23:32:25,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 23:32:25,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 23:32:25,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 23:32:25,448 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 23:32:25,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 23:32:25,448 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 23:32:25,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 23:32:25,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 23:32:25,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 23:32:25,452 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 23:32:25,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 23:32:25,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:32:25,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 23:32:25,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-05 23:32:25,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 23:32:25,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 23:32:25,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 23:32:25,454 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-05 23:32:25,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 23:32:25,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 23:32:25,787 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 23:32:25,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 23:32:25,792 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 23:32:25,792 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 23:32:25,793 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix034_tso.oepc.i [2020-10-05 23:32:25,870 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50e9a8e1f/002f5a04d4424a3eb7f06fbfeb41abe0/FLAG46bdb2754 [2020-10-05 23:32:26,419 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 23:32:26,420 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix034_tso.oepc.i [2020-10-05 23:32:26,440 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50e9a8e1f/002f5a04d4424a3eb7f06fbfeb41abe0/FLAG46bdb2754 [2020-10-05 23:32:26,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50e9a8e1f/002f5a04d4424a3eb7f06fbfeb41abe0 [2020-10-05 23:32:26,716 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 23:32:26,718 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 23:32:26,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 23:32:26,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 23:32:26,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 23:32:26,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:32:26" (1/1) ... [2020-10-05 23:32:26,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@719189bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:32:26, skipping insertion in model container [2020-10-05 23:32:26,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:32:26" (1/1) ... [2020-10-05 23:32:26,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 23:32:26,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 23:32:27,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:32:27,382 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 23:32:27,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:32:27,557 INFO L208 MainTranslator]: Completed translation [2020-10-05 23:32:27,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:32:27 WrapperNode [2020-10-05 23:32:27,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 23:32:27,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 23:32:27,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 23:32:27,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 23:32:27,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:32:27" (1/1) ... [2020-10-05 23:32:27,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:32:27" (1/1) ... [2020-10-05 23:32:27,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 23:32:27,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 23:32:27,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 23:32:27,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 23:32:27,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:32:27" (1/1) ... [2020-10-05 23:32:27,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:32:27" (1/1) ... [2020-10-05 23:32:27,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:32:27" (1/1) ... [2020-10-05 23:32:27,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:32:27" (1/1) ... [2020-10-05 23:32:27,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:32:27" (1/1) ... [2020-10-05 23:32:27,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:32:27" (1/1) ... [2020-10-05 23:32:27,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:32:27" (1/1) ... [2020-10-05 23:32:27,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 23:32:27,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 23:32:27,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 23:32:27,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 23:32:27,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:32:27" (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 [2020-10-05 23:32:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 23:32:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-05 23:32:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 23:32:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 23:32:27,765 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-05 23:32:27,767 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-05 23:32:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-05 23:32:27,768 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-05 23:32:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-05 23:32:27,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 23:32:27,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 23:32:27,774 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 23:32:29,580 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 23:32:29,581 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-05 23:32:29,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:32:29 BoogieIcfgContainer [2020-10-05 23:32:29,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 23:32:29,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 23:32:29,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 23:32:29,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 23:32:29,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 11:32:26" (1/3) ... [2020-10-05 23:32:29,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c3bf60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:32:29, skipping insertion in model container [2020-10-05 23:32:29,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:32:27" (2/3) ... [2020-10-05 23:32:29,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c3bf60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:32:29, skipping insertion in model container [2020-10-05 23:32:29,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:32:29" (3/3) ... [2020-10-05 23:32:29,596 INFO L109 eAbstractionObserver]: Analyzing ICFG mix034_tso.oepc.i [2020-10-05 23:32:29,607 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 23:32:29,607 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-05 23:32:29,617 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-05 23:32:29,618 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 23:32:29,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,651 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,651 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,651 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,652 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,653 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,653 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,653 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,653 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,654 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,654 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,655 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,655 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,656 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,656 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,656 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,656 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,656 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,656 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,661 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,663 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,665 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,665 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,669 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,670 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,670 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,670 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,670 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,670 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,671 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,671 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,671 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,673 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,674 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,675 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,676 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,676 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,678 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,679 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,679 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,679 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,679 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,679 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,680 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:32:29,695 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-05 23:32:29,717 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 23:32:29,717 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 23:32:29,717 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-05 23:32:29,717 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 23:32:29,717 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 23:32:29,717 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 23:32:29,717 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 23:32:29,718 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 23:32:29,733 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 80 transitions, 170 flow [2020-10-05 23:32:29,735 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 80 transitions, 170 flow [2020-10-05 23:32:29,777 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-05 23:32:29,777 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:32:29,782 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2020-10-05 23:32:29,785 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 80 transitions, 170 flow [2020-10-05 23:32:29,804 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-05 23:32:29,805 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:32:29,805 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2020-10-05 23:32:29,807 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1024 [2020-10-05 23:32:29,808 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-05 23:32:30,733 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2020-10-05 23:32:31,713 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-05 23:32:31,826 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2569 [2020-10-05 23:32:31,827 INFO L214 etLargeBlockEncoding]: Total number of compositions: 66 [2020-10-05 23:32:31,831 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 22 transitions, 54 flow [2020-10-05 23:32:31,852 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 230 states. [2020-10-05 23:32:31,854 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states. [2020-10-05 23:32:31,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-05 23:32:31,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:32:31,861 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-05 23:32:31,862 INFO L427 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:32:31,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:32:31,868 INFO L82 PathProgramCache]: Analyzing trace with hash 910390, now seen corresponding path program 1 times [2020-10-05 23:32:31,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:32:31,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45337388] [2020-10-05 23:32:31,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:32:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:32:32,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:32:32,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45337388] [2020-10-05 23:32:32,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:32:32,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 23:32:32,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111498358] [2020-10-05 23:32:32,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:32:32,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:32:32,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:32:32,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:32:32,117 INFO L87 Difference]: Start difference. First operand 230 states. Second operand 3 states. [2020-10-05 23:32:32,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:32:32,175 INFO L93 Difference]: Finished difference Result 192 states and 464 transitions. [2020-10-05 23:32:32,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:32:32,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-05 23:32:32,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:32:32,191 INFO L225 Difference]: With dead ends: 192 [2020-10-05 23:32:32,191 INFO L226 Difference]: Without dead ends: 162 [2020-10-05 23:32:32,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:32:32,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-05 23:32:32,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-10-05 23:32:32,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-05 23:32:32,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 385 transitions. [2020-10-05 23:32:32,247 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 385 transitions. Word has length 3 [2020-10-05 23:32:32,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:32:32,248 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 385 transitions. [2020-10-05 23:32:32,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:32:32,248 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 385 transitions. [2020-10-05 23:32:32,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-05 23:32:32,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:32:32,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:32:32,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 23:32:32,250 INFO L427 AbstractCegarLoop]: === Iteration 2 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:32:32,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:32:32,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1048411187, now seen corresponding path program 1 times [2020-10-05 23:32:32,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:32:32,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135320009] [2020-10-05 23:32:32,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:32:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:32:32,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:32:32,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135320009] [2020-10-05 23:32:32,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:32:32,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:32:32,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028241993] [2020-10-05 23:32:32,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:32:32,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:32:32,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:32:32,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:32:32,374 INFO L87 Difference]: Start difference. First operand 162 states and 385 transitions. Second operand 4 states. [2020-10-05 23:32:32,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:32:32,407 INFO L93 Difference]: Finished difference Result 172 states and 388 transitions. [2020-10-05 23:32:32,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:32:32,408 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-05 23:32:32,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:32:32,409 INFO L225 Difference]: With dead ends: 172 [2020-10-05 23:32:32,410 INFO L226 Difference]: Without dead ends: 142 [2020-10-05 23:32:32,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:32:32,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-05 23:32:32,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2020-10-05 23:32:32,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-05 23:32:32,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 329 transitions. [2020-10-05 23:32:32,425 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 329 transitions. Word has length 8 [2020-10-05 23:32:32,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:32:32,425 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 329 transitions. [2020-10-05 23:32:32,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:32:32,425 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 329 transitions. [2020-10-05 23:32:32,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 23:32:32,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:32:32,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:32:32,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 23:32:32,427 INFO L427 AbstractCegarLoop]: === Iteration 3 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:32:32,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:32:32,428 INFO L82 PathProgramCache]: Analyzing trace with hash -2132430741, now seen corresponding path program 1 times [2020-10-05 23:32:32,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:32:32,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386422645] [2020-10-05 23:32:32,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:32:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:32:32,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:32:32,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386422645] [2020-10-05 23:32:32,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:32:32,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-05 23:32:32,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663589854] [2020-10-05 23:32:32,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:32:32,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:32:32,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:32:32,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:32:32,540 INFO L87 Difference]: Start difference. First operand 142 states and 329 transitions. Second operand 4 states. [2020-10-05 23:32:32,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:32:32,582 INFO L93 Difference]: Finished difference Result 108 states and 206 transitions. [2020-10-05 23:32:32,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:32:32,584 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-05 23:32:32,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:32:32,585 INFO L225 Difference]: With dead ends: 108 [2020-10-05 23:32:32,586 INFO L226 Difference]: Without dead ends: 78 [2020-10-05 23:32:32,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:32:32,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-05 23:32:32,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-10-05 23:32:32,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-05 23:32:32,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 137 transitions. [2020-10-05 23:32:32,601 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 137 transitions. Word has length 10 [2020-10-05 23:32:32,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:32:32,603 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 137 transitions. [2020-10-05 23:32:32,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:32:32,603 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 137 transitions. [2020-10-05 23:32:32,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-05 23:32:32,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:32:32,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:32:32,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 23:32:32,605 INFO L427 AbstractCegarLoop]: === Iteration 4 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:32:32,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:32:32,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1630219026, now seen corresponding path program 1 times [2020-10-05 23:32:32,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:32:32,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101294852] [2020-10-05 23:32:32,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:32:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:32:32,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:32:32,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101294852] [2020-10-05 23:32:32,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:32:32,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 23:32:32,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028434669] [2020-10-05 23:32:32,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:32:32,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:32:32,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:32:32,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:32:32,775 INFO L87 Difference]: Start difference. First operand 78 states and 137 transitions. Second operand 5 states. [2020-10-05 23:32:32,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:32:32,816 INFO L93 Difference]: Finished difference Result 56 states and 91 transitions. [2020-10-05 23:32:32,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 23:32:32,817 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-05 23:32:32,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:32:32,817 INFO L225 Difference]: With dead ends: 56 [2020-10-05 23:32:32,818 INFO L226 Difference]: Without dead ends: 46 [2020-10-05 23:32:32,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:32:32,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-05 23:32:32,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-05 23:32:32,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-05 23:32:32,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 73 transitions. [2020-10-05 23:32:32,822 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 73 transitions. Word has length 13 [2020-10-05 23:32:32,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:32:32,822 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 73 transitions. [2020-10-05 23:32:32,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:32:32,822 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 73 transitions. [2020-10-05 23:32:32,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 23:32:32,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:32:32,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:32:32,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 23:32:32,824 INFO L427 AbstractCegarLoop]: === Iteration 5 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:32:32,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:32:32,824 INFO L82 PathProgramCache]: Analyzing trace with hash 2039568479, now seen corresponding path program 1 times [2020-10-05 23:32:32,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:32:32,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078321656] [2020-10-05 23:32:32,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:32:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:32:33,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:32:33,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078321656] [2020-10-05 23:32:33,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:32:33,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-05 23:32:33,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083704279] [2020-10-05 23:32:33,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 23:32:33,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:32:33,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 23:32:33,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:32:33,041 INFO L87 Difference]: Start difference. First operand 46 states and 73 transitions. Second operand 6 states. [2020-10-05 23:32:33,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:32:33,200 INFO L93 Difference]: Finished difference Result 68 states and 102 transitions. [2020-10-05 23:32:33,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 23:32:33,201 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-05 23:32:33,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:32:33,202 INFO L225 Difference]: With dead ends: 68 [2020-10-05 23:32:33,202 INFO L226 Difference]: Without dead ends: 49 [2020-10-05 23:32:33,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-05 23:32:33,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-05 23:32:33,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 36. [2020-10-05 23:32:33,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-05 23:32:33,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 53 transitions. [2020-10-05 23:32:33,210 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 53 transitions. Word has length 17 [2020-10-05 23:32:33,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:32:33,211 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 53 transitions. [2020-10-05 23:32:33,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 23:32:33,211 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2020-10-05 23:32:33,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 23:32:33,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:32:33,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:32:33,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 23:32:33,212 INFO L427 AbstractCegarLoop]: === Iteration 6 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:32:33,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:32:33,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1967872927, now seen corresponding path program 2 times [2020-10-05 23:32:33,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:32:33,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709470630] [2020-10-05 23:32:33,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:32:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 23:32:33,343 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 23:32:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 23:32:33,500 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 23:32:33,533 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-05 23:32:33,534 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-05 23:32:33,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 23:32:33,555 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,556 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,557 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,558 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,558 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,558 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,558 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,559 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,559 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,559 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,559 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,559 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,560 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,560 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,560 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,560 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,561 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,561 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,561 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,561 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,561 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,562 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,562 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,562 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,562 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,562 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,563 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,563 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,563 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,563 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,564 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,564 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,564 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,564 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,564 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,565 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,565 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,565 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,566 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,566 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,566 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,566 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,566 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,566 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,567 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,567 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,567 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,567 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,567 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,568 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,568 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,568 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,569 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,569 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,569 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,569 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,570 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,570 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,570 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-05 23:32:33,570 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-05 23:32:33,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 11:32:33 BasicIcfg [2020-10-05 23:32:33,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 23:32:33,632 INFO L168 Benchmark]: Toolchain (without parser) took 6914.16 ms. Allocated memory was 138.9 MB in the beginning and 304.1 MB in the end (delta: 165.2 MB). Free memory was 100.9 MB in the beginning and 246.7 MB in the end (delta: -145.9 MB). Peak memory consumption was 184.9 MB. Max. memory is 7.1 GB. [2020-10-05 23:32:33,633 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 23:32:33,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 838.12 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.4 MB in the beginning and 157.9 MB in the end (delta: -57.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2020-10-05 23:32:33,635 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.95 ms. Allocated memory is still 202.4 MB. Free memory was 157.9 MB in the beginning and 155.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-05 23:32:33,636 INFO L168 Benchmark]: Boogie Preprocessor took 38.89 ms. Allocated memory is still 202.4 MB. Free memory was 155.2 MB in the beginning and 153.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-05 23:32:33,637 INFO L168 Benchmark]: RCFGBuilder took 1914.30 ms. Allocated memory was 202.4 MB in the beginning and 252.7 MB in the end (delta: 50.3 MB). Free memory was 153.2 MB in the beginning and 213.7 MB in the end (delta: -60.6 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2020-10-05 23:32:33,638 INFO L168 Benchmark]: TraceAbstraction took 4044.35 ms. Allocated memory was 252.7 MB in the beginning and 304.1 MB in the end (delta: 51.4 MB). Free memory was 213.7 MB in the beginning and 246.7 MB in the end (delta: -33.0 MB). Peak memory consumption was 184.0 MB. Max. memory is 7.1 GB. [2020-10-05 23:32:33,642 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 838.12 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.4 MB in the beginning and 157.9 MB in the end (delta: -57.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 70.95 ms. Allocated memory is still 202.4 MB. Free memory was 157.9 MB in the beginning and 155.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.89 ms. Allocated memory is still 202.4 MB. Free memory was 155.2 MB in the beginning and 153.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1914.30 ms. Allocated memory was 202.4 MB in the beginning and 252.7 MB in the end (delta: 50.3 MB). Free memory was 153.2 MB in the beginning and 213.7 MB in the end (delta: -60.6 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4044.35 ms. Allocated memory was 252.7 MB in the beginning and 304.1 MB in the end (delta: 51.4 MB). Free memory was 213.7 MB in the beginning and 246.7 MB in the end (delta: -33.0 MB). Peak memory consumption was 184.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.0s, 85 ProgramPointsBefore, 28 ProgramPointsAfterwards, 80 TransitionsBefore, 22 TransitionsAfterwards, 1024 CoEnabledTransitionPairs, 7 FixpointIterations, 31 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 546 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2569 CheckedPairsTotal, 66 TotalNumberOfCompositions - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L697] 0 int __unbuffered_cnt = 0; [L699] 0 int __unbuffered_p0_EAX = 0; [L701] 0 int __unbuffered_p1_EAX = 0; [L703] 0 int __unbuffered_p1_EBX = 0; [L704] 0 _Bool main$tmp_guard0; [L705] 0 _Bool main$tmp_guard1; [L707] 0 int x = 0; [L709] 0 int y = 0; [L711] 0 int z = 0; [L712] 0 _Bool z$flush_delayed; [L713] 0 int z$mem_tmp; [L714] 0 _Bool z$r_buff0_thd0; [L715] 0 _Bool z$r_buff0_thd1; [L716] 0 _Bool z$r_buff0_thd2; [L717] 0 _Bool z$r_buff1_thd0; [L718] 0 _Bool z$r_buff1_thd1; [L719] 0 _Bool z$r_buff1_thd2; [L720] 0 _Bool z$read_delayed; [L721] 0 int *z$read_delayed_var; [L722] 0 int z$w_buff0; [L723] 0 _Bool z$w_buff0_used; [L724] 0 int z$w_buff1; [L725] 0 _Bool z$w_buff1_used; [L726] 0 _Bool weak$$choice0; [L727] 0 _Bool weak$$choice2; [L806] 0 pthread_t t909; [L807] FCALL, FORK 0 pthread_create(&t909, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=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_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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] [L731] 1 z$w_buff1 = z$w_buff0 [L732] 1 z$w_buff0 = 1 [L733] 1 z$w_buff1_used = z$w_buff0_used [L734] 1 z$w_buff0_used = (_Bool)1 [L7] COND TRUE 1 !expression [L7] 1 __VERIFIER_error() [L736] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L737] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L738] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L739] 1 z$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$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=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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] [L742] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=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=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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] [L808] 0 pthread_t t910; [L809] FCALL, FORK 0 pthread_create(&t910, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, 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=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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] [L759] 2 x = 1 [L762] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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] [L765] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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] [L768] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L769] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L770] 2 z$flush_delayed = weak$$choice2 [L771] 2 z$mem_tmp = z [L772] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L772] 2 z = !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L773] EXPR 2 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L773] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0) [L773] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0 [L773] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0) [L773] EXPR 2 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L773] 2 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L774] EXPR 2 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L774] 2 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L775] EXPR 2 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L775] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used) [L775] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L775] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used) [L775] EXPR 2 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L775] 2 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L776] EXPR 2 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L776] EXPR 2 !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L776] EXPR 2 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L776] 2 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L777] EXPR 2 weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L777] 2 z$r_buff0_thd2 = weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L778] EXPR 2 weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L778] 2 z$r_buff1_thd2 = weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L779] 2 __unbuffered_p1_EBX = z [L780] EXPR 2 z$flush_delayed ? z$mem_tmp : z [L780] 2 z = z$flush_delayed ? z$mem_tmp : z [L781] 2 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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] [L745] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L745] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L746] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L746] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L747] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L747] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L748] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L748] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L749] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 [L749] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 [L752] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L754] 1 return 0; [L784] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L784] EXPR 2 z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z [L784] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L784] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L785] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L785] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L786] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L786] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L787] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L787] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L788] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 [L788] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 [L791] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L793] 2 return 0; [L811] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L815] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L815] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L816] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L816] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L817] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L817] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L818] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L818] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L819] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L819] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L822] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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] [L7] COND TRUE 0 !expression [L7] 0 __VERIFIER_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=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 3 procedures, 79 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 109 SDtfs, 86 SDslu, 194 SDs, 0 SdLazy, 95 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 3465 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...