/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-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix054_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 00:47:35,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 00:47:35,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 00:47:35,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 00:47:35,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 00:47:35,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 00:47:35,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 00:47:35,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 00:47:35,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 00:47:35,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 00:47:35,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 00:47:35,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 00:47:35,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 00:47:35,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 00:47:35,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 00:47:35,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 00:47:35,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 00:47:35,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 00:47:35,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 00:47:35,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 00:47:35,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 00:47:35,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 00:47:35,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 00:47:35,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 00:47:35,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 00:47:35,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 00:47:35,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 00:47:35,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 00:47:35,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 00:47:35,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 00:47:35,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 00:47:35,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 00:47:35,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 00:47:35,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 00:47:35,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 00:47:35,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 00:47:35,362 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-McrAutomaton-WP.epf [2020-10-06 00:47:35,385 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 00:47:35,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 00:47:35,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 00:47:35,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 00:47:35,387 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 00:47:35,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 00:47:35,388 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 00:47:35,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 00:47:35,388 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 00:47:35,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 00:47:35,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 00:47:35,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 00:47:35,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 00:47:35,389 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 00:47:35,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 00:47:35,389 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 00:47:35,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 00:47:35,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 00:47:35,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 00:47:35,390 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 00:47:35,390 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 00:47:35,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 00:47:35,391 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 00:47:35,391 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 00:47:35,391 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 00:47:35,391 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 00:47:35,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 00:47:35,392 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 00:47:35,392 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 00:47:35,392 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 00:47:35,392 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 00:47:35,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 00:47:35,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 00:47:35,678 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 00:47:35,679 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 00:47:35,679 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 00:47:35,680 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix054_rmo.oepc.i [2020-10-06 00:47:35,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28afa5eb2/cd0d15e1045947e1aad7a4a7868cd318/FLAG15f0dcf09 [2020-10-06 00:47:36,267 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 00:47:36,268 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix054_rmo.oepc.i [2020-10-06 00:47:36,283 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28afa5eb2/cd0d15e1045947e1aad7a4a7868cd318/FLAG15f0dcf09 [2020-10-06 00:47:36,558 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28afa5eb2/cd0d15e1045947e1aad7a4a7868cd318 [2020-10-06 00:47:36,567 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 00:47:36,569 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 00:47:36,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 00:47:36,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 00:47:36,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 00:47:36,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:47:36" (1/1) ... [2020-10-06 00:47:36,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b745360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:36, skipping insertion in model container [2020-10-06 00:47:36,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:47:36" (1/1) ... [2020-10-06 00:47:36,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 00:47:36,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 00:47:37,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:47:37,091 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 00:47:37,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:47:37,356 INFO L208 MainTranslator]: Completed translation [2020-10-06 00:47:37,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:37 WrapperNode [2020-10-06 00:47:37,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 00:47:37,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 00:47:37,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 00:47:37,357 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 00:47:37,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:37" (1/1) ... [2020-10-06 00:47:37,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:37" (1/1) ... [2020-10-06 00:47:37,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 00:47:37,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 00:47:37,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 00:47:37,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 00:47:37,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:37" (1/1) ... [2020-10-06 00:47:37,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:37" (1/1) ... [2020-10-06 00:47:37,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:37" (1/1) ... [2020-10-06 00:47:37,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:37" (1/1) ... [2020-10-06 00:47:37,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:37" (1/1) ... [2020-10-06 00:47:37,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:37" (1/1) ... [2020-10-06 00:47:37,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:37" (1/1) ... [2020-10-06 00:47:37,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 00:47:37,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 00:47:37,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 00:47:37,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 00:47:37,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:37" (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 [2020-10-06 00:47:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 00:47:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 00:47:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 00:47:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 00:47:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 00:47:37,533 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 00:47:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 00:47:37,533 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 00:47:37,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 00:47:37,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 00:47:37,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 00:47:37,536 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 00:47:39,401 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 00:47:39,401 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-06 00:47:39,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:47:39 BoogieIcfgContainer [2020-10-06 00:47:39,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 00:47:39,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 00:47:39,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 00:47:39,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 00:47:39,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 12:47:36" (1/3) ... [2020-10-06 00:47:39,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3589eebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:47:39, skipping insertion in model container [2020-10-06 00:47:39,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:37" (2/3) ... [2020-10-06 00:47:39,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3589eebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:47:39, skipping insertion in model container [2020-10-06 00:47:39,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:47:39" (3/3) ... [2020-10-06 00:47:39,412 INFO L109 eAbstractionObserver]: Analyzing ICFG mix054_rmo.oepc.i [2020-10-06 00:47:39,423 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 00:47:39,424 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 00:47:39,431 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-06 00:47:39,432 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 00:47:39,464 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,465 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,465 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,466 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,466 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,467 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,467 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,467 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,467 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,467 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,468 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,468 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,468 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,469 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,469 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,470 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,470 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,471 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,472 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,473 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,474 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,475 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,476 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,478 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,486 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,486 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,487 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,487 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,492 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,493 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,495 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,498 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,498 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,498 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,498 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,498 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,499 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:39,518 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-06 00:47:39,539 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 00:47:39,539 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 00:47:39,539 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 00:47:39,539 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 00:47:39,539 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 00:47:39,539 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 00:47:39,540 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 00:47:39,540 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 00:47:39,555 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 75 transitions, 160 flow [2020-10-06 00:47:39,557 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 80 places, 75 transitions, 160 flow [2020-10-06 00:47:39,595 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2020-10-06 00:47:39,595 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:47:39,600 INFO L80 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2020-10-06 00:47:39,603 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 80 places, 75 transitions, 160 flow [2020-10-06 00:47:39,621 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2020-10-06 00:47:39,621 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:47:39,622 INFO L80 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2020-10-06 00:47:39,624 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 896 [2020-10-06 00:47:39,625 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 00:47:39,862 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2020-10-06 00:47:40,397 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-06 00:47:40,553 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-10-06 00:47:40,870 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-06 00:47:40,974 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-06 00:47:42,054 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-06 00:47:42,169 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-10-06 00:47:42,178 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2726 [2020-10-06 00:47:42,178 INFO L214 etLargeBlockEncoding]: Total number of compositions: 64 [2020-10-06 00:47:42,182 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 22 transitions, 54 flow [2020-10-06 00:47:42,201 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 224 states. [2020-10-06 00:47:42,204 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-10-06 00:47:42,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-06 00:47:42,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:47:42,211 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-06 00:47:42,211 INFO L427 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:47:42,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:47:42,217 INFO L82 PathProgramCache]: Analyzing trace with hash 896530, now seen corresponding path program 1 times [2020-10-06 00:47:42,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:47:42,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64545217] [2020-10-06 00:47:42,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:47:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:47:42,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:47:42,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64545217] [2020-10-06 00:47:42,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:47:42,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:47:42,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1056543403] [2020-10-06 00:47:42,439 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:47:42,441 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:47:42,453 INFO L258 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-10-06 00:47:42,454 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:47:42,458 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:47:42,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:47:42,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:47:42,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:47:42,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:47:42,476 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 3 states. [2020-10-06 00:47:42,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:47:42,538 INFO L93 Difference]: Finished difference Result 187 states and 450 transitions. [2020-10-06 00:47:42,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:47:42,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-06 00:47:42,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:47:42,552 INFO L225 Difference]: With dead ends: 187 [2020-10-06 00:47:42,552 INFO L226 Difference]: Without dead ends: 137 [2020-10-06 00:47:42,553 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 [2020-10-06 00:47:42,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-06 00:47:42,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2020-10-06 00:47:42,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-06 00:47:42,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 320 transitions. [2020-10-06 00:47:42,606 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 320 transitions. Word has length 3 [2020-10-06 00:47:42,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:47:42,606 INFO L479 AbstractCegarLoop]: Abstraction has 137 states and 320 transitions. [2020-10-06 00:47:42,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:47:42,607 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 320 transitions. [2020-10-06 00:47:42,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 00:47:42,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:47:42,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:47:42,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 00:47:42,608 INFO L427 AbstractCegarLoop]: === Iteration 2 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:47:42,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:47:42,609 INFO L82 PathProgramCache]: Analyzing trace with hash 2030033815, now seen corresponding path program 1 times [2020-10-06 00:47:42,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:47:42,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731405534] [2020-10-06 00:47:42,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:47:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:47:42,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:47:42,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731405534] [2020-10-06 00:47:42,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:47:42,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 00:47:42,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [368536739] [2020-10-06 00:47:42,734 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:47:42,735 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:47:42,737 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-06 00:47:42,737 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:47:42,738 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:47:42,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:47:42,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:47:42,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:47:42,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:47:42,740 INFO L87 Difference]: Start difference. First operand 137 states and 320 transitions. Second operand 4 states. [2020-10-06 00:47:42,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:47:42,782 INFO L93 Difference]: Finished difference Result 158 states and 350 transitions. [2020-10-06 00:47:42,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 00:47:42,783 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-06 00:47:42,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:47:42,784 INFO L225 Difference]: With dead ends: 158 [2020-10-06 00:47:42,785 INFO L226 Difference]: Without dead ends: 133 [2020-10-06 00:47:42,786 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 [2020-10-06 00:47:42,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-06 00:47:42,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-10-06 00:47:42,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-06 00:47:42,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 308 transitions. [2020-10-06 00:47:42,799 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 308 transitions. Word has length 8 [2020-10-06 00:47:42,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:47:42,799 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 308 transitions. [2020-10-06 00:47:42,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:47:42,799 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 308 transitions. [2020-10-06 00:47:42,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 00:47:42,800 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:47:42,801 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:47:42,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 00:47:42,801 INFO L427 AbstractCegarLoop]: === Iteration 3 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:47:42,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:47:42,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1515612508, now seen corresponding path program 1 times [2020-10-06 00:47:42,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:47:42,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065720184] [2020-10-06 00:47:42,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:47:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:47:42,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:47:42,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065720184] [2020-10-06 00:47:42,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:47:42,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:47:42,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [552575214] [2020-10-06 00:47:42,885 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:47:42,886 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:47:42,888 INFO L258 McrAutomatonBuilder]: Finished intersection with 12 states and 13 transitions. [2020-10-06 00:47:42,888 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:47:42,913 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:47:42,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:47:42,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:47:42,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:47:42,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:47:42,915 INFO L87 Difference]: Start difference. First operand 133 states and 308 transitions. Second operand 4 states. [2020-10-06 00:47:42,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:47:42,948 INFO L93 Difference]: Finished difference Result 98 states and 184 transitions. [2020-10-06 00:47:42,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 00:47:42,949 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-06 00:47:42,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:47:42,951 INFO L225 Difference]: With dead ends: 98 [2020-10-06 00:47:42,951 INFO L226 Difference]: Without dead ends: 73 [2020-10-06 00:47:42,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:47:42,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-06 00:47:42,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-06 00:47:42,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-06 00:47:42,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 128 transitions. [2020-10-06 00:47:42,959 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 128 transitions. Word has length 9 [2020-10-06 00:47:42,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:47:42,959 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 128 transitions. [2020-10-06 00:47:42,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:47:42,959 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 128 transitions. [2020-10-06 00:47:42,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 00:47:42,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:47:42,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:47:42,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 00:47:42,961 INFO L427 AbstractCegarLoop]: === Iteration 4 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:47:42,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:47:42,961 INFO L82 PathProgramCache]: Analyzing trace with hash 62305146, now seen corresponding path program 1 times [2020-10-06 00:47:42,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:47:42,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131960456] [2020-10-06 00:47:42,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:47:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:47:43,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:47:43,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131960456] [2020-10-06 00:47:43,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:47:43,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 00:47:43,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [86600916] [2020-10-06 00:47:43,169 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:47:43,171 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:47:43,174 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-10-06 00:47:43,174 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:47:43,175 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:47:43,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 00:47:43,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:47:43,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 00:47:43,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:47:43,176 INFO L87 Difference]: Start difference. First operand 73 states and 128 transitions. Second operand 5 states. [2020-10-06 00:47:43,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:47:43,210 INFO L93 Difference]: Finished difference Result 50 states and 80 transitions. [2020-10-06 00:47:43,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 00:47:43,211 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-06 00:47:43,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:47:43,211 INFO L225 Difference]: With dead ends: 50 [2020-10-06 00:47:43,211 INFO L226 Difference]: Without dead ends: 41 [2020-10-06 00:47:43,212 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 [2020-10-06 00:47:43,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-06 00:47:43,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-06 00:47:43,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-06 00:47:43,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 64 transitions. [2020-10-06 00:47:43,215 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 64 transitions. Word has length 12 [2020-10-06 00:47:43,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:47:43,216 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 64 transitions. [2020-10-06 00:47:43,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 00:47:43,216 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 64 transitions. [2020-10-06 00:47:43,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-06 00:47:43,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:47:43,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:47:43,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 00:47:43,217 INFO L427 AbstractCegarLoop]: === Iteration 5 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:47:43,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:47:43,218 INFO L82 PathProgramCache]: Analyzing trace with hash -678638083, now seen corresponding path program 1 times [2020-10-06 00:47:43,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:47:43,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024697310] [2020-10-06 00:47:43,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:47:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:47:43,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:47:43,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024697310] [2020-10-06 00:47:43,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:47:43,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:47:43,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [457092589] [2020-10-06 00:47:43,355 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:47:43,359 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:47:43,370 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 22 transitions. [2020-10-06 00:47:43,370 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:47:43,399 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:47:43,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:47:43,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:47:43,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:47:43,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:47:43,400 INFO L87 Difference]: Start difference. First operand 41 states and 64 transitions. Second operand 4 states. [2020-10-06 00:47:43,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:47:43,428 INFO L93 Difference]: Finished difference Result 56 states and 84 transitions. [2020-10-06 00:47:43,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:47:43,429 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-06 00:47:43,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:47:43,430 INFO L225 Difference]: With dead ends: 56 [2020-10-06 00:47:43,431 INFO L226 Difference]: Without dead ends: 33 [2020-10-06 00:47:43,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:47:43,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-06 00:47:43,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-06 00:47:43,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-06 00:47:43,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 48 transitions. [2020-10-06 00:47:43,434 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 48 transitions. Word has length 16 [2020-10-06 00:47:43,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:47:43,434 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 48 transitions. [2020-10-06 00:47:43,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:47:43,435 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2020-10-06 00:47:43,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-06 00:47:43,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:47:43,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:47:43,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 00:47:43,436 INFO L427 AbstractCegarLoop]: === Iteration 6 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:47:43,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:47:43,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1511652163, now seen corresponding path program 2 times [2020-10-06 00:47:43,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:47:43,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777907950] [2020-10-06 00:47:43,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:47:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-06 00:47:43,570 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-06 00:47:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-06 00:47:43,630 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-06 00:47:43,664 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-06 00:47:43,664 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-06 00:47:43,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 00:47:43,699 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,699 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,701 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,704 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,704 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,704 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,704 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,704 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,705 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,705 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,705 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,705 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,706 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,706 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,706 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,707 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,707 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,707 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,707 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,707 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,707 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,708 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,708 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,708 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,709 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,709 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,710 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,710 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,710 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,711 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,711 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,711 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,711 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,711 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,711 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,711 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,713 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,713 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,719 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,719 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,719 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,719 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,719 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,719 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,720 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,720 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,720 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,721 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,721 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,721 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,721 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,721 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,721 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,722 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,722 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-06 00:47:43,722 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-06 00:47:43,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 12:47:43 BasicIcfg [2020-10-06 00:47:43,809 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 00:47:43,811 INFO L168 Benchmark]: Toolchain (without parser) took 7241.99 ms. Allocated memory was 140.0 MB in the beginning and 288.9 MB in the end (delta: 148.9 MB). Free memory was 102.0 MB in the beginning and 171.5 MB in the end (delta: -69.5 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. [2020-10-06 00:47:43,811 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-06 00:47:43,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 786.47 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.6 MB in the beginning and 161.1 MB in the end (delta: -59.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. [2020-10-06 00:47:43,813 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.52 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 158.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-10-06 00:47:43,814 INFO L168 Benchmark]: Boogie Preprocessor took 46.53 ms. Allocated memory is still 203.9 MB. Free memory was 158.1 MB in the beginning and 156.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-06 00:47:43,815 INFO L168 Benchmark]: RCFGBuilder took 1940.21 ms. Allocated memory was 203.9 MB in the beginning and 249.0 MB in the end (delta: 45.1 MB). Free memory was 156.2 MB in the beginning and 211.8 MB in the end (delta: -55.6 MB). Peak memory consumption was 106.6 MB. Max. memory is 7.1 GB. [2020-10-06 00:47:43,816 INFO L168 Benchmark]: TraceAbstraction took 4403.48 ms. Allocated memory was 249.0 MB in the beginning and 288.9 MB in the end (delta: 39.8 MB). Free memory was 209.8 MB in the beginning and 171.5 MB in the end (delta: 38.3 MB). Peak memory consumption was 78.2 MB. Max. memory is 7.1 GB. [2020-10-06 00:47:43,821 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 786.47 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.6 MB in the beginning and 161.1 MB in the end (delta: -59.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.52 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 158.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.53 ms. Allocated memory is still 203.9 MB. Free memory was 158.1 MB in the beginning and 156.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1940.21 ms. Allocated memory was 203.9 MB in the beginning and 249.0 MB in the end (delta: 45.1 MB). Free memory was 156.2 MB in the beginning and 211.8 MB in the end (delta: -55.6 MB). Peak memory consumption was 106.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4403.48 ms. Allocated memory was 249.0 MB in the beginning and 288.9 MB in the end (delta: 39.8 MB). Free memory was 209.8 MB in the beginning and 171.5 MB in the end (delta: 38.3 MB). Peak memory consumption was 78.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.6s, 80 ProgramPointsBefore, 28 ProgramPointsAfterwards, 75 TransitionsBefore, 22 TransitionsAfterwards, 896 CoEnabledTransitionPairs, 8 FixpointIterations, 28 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 450 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2726 CheckedPairsTotal, 64 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_p1_EAX = 0; [L700] 0 _Bool main$tmp_guard0; [L701] 0 _Bool main$tmp_guard1; [L703] 0 int x = 0; [L705] 0 int y = 0; [L706] 0 _Bool y$flush_delayed; [L707] 0 int y$mem_tmp; [L708] 0 _Bool y$r_buff0_thd0; [L709] 0 _Bool y$r_buff0_thd1; [L710] 0 _Bool y$r_buff0_thd2; [L711] 0 _Bool y$r_buff1_thd0; [L712] 0 _Bool y$r_buff1_thd1; [L713] 0 _Bool y$r_buff1_thd2; [L714] 0 _Bool y$read_delayed; [L715] 0 int *y$read_delayed_var; [L716] 0 int y$w_buff0; [L717] 0 _Bool y$w_buff0_used; [L718] 0 int y$w_buff1; [L719] 0 _Bool y$w_buff1_used; [L720] 0 _Bool weak$$choice0; [L721] 0 _Bool weak$$choice2; [L794] 0 pthread_t t1449; [L795] FCALL, FORK 0 pthread_create(&t1449, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L796] 0 pthread_t t1450; [L797] FCALL, FORK 0 pthread_create(&t1450, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L725] 1 y$w_buff1 = y$w_buff0 [L726] 1 y$w_buff0 = 1 [L727] 1 y$w_buff1_used = y$w_buff0_used [L728] 1 y$w_buff0_used = (_Bool)1 [L7] COND TRUE 1 !expression [L7] 1 __VERIFIER_error() [L730] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L731] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L732] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L733] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L736] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L753] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L756] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L757] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L758] 2 y$flush_delayed = weak$$choice2 [L759] 2 y$mem_tmp = y [L760] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L760] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L761] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L761] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0) [L761] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L761] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L762] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L762] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1) [L762] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L762] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L763] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L763] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L764] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L764] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L765] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L765] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2) [L765] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L765] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L766] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L766] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L766] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L766] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L767] 2 __unbuffered_p1_EAX = y [L768] EXPR 2 y$flush_delayed ? y$mem_tmp : y [L768] 2 y = y$flush_delayed ? y$mem_tmp : y [L769] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L772] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L773] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L774] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L774] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L775] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L775] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L776] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L776] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L779] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L781] 2 return 0; [L739] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L739] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L740] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L740] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L741] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L741] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L742] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L742] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L743] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L743] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L746] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L748] 1 return 0; [L799] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L803] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L803] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L804] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L804] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L805] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L805] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L806] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L806] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L807] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L807] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L810] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0) VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L7] COND TRUE 0 !expression [L7] 0 __VERIFIER_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 74 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 96 SDtfs, 69 SDslu, 133 SDs, 0 SdLazy, 59 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=224occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 1361 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...