/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/safe027_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:08:43,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:08:43,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:08:43,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:08:43,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:08:43,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:08:43,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:08:43,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:08:43,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:08:43,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:08:43,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:08:43,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:08:43,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:08:43,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:08:43,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:08:43,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:08:43,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:08:43,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:08:43,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:08:43,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:08:43,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:08:43,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:08:43,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:08:43,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:08:43,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 01:08:43,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:08:43,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:08:43,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:08:43,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:08:43,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:08:43,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:08:43,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:08:43,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:08:43,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:08:43,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:08:43,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:08:43,416 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 01:08:43,438 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:08:43,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:08:43,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:08:43,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:08:43,440 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:08:43,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:08:43,440 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:08:43,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:08:43,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:08:43,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:08:43,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:08:43,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:08:43,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:08:43,442 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:08:43,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:08:43,442 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:08:43,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:08:43,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:08:43,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:08:43,443 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:08:43,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:08:43,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:08:43,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:08:43,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:08:43,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:08:43,444 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:08:43,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:08:43,444 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:08:43,445 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:08:43,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:08:43,445 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:08:43,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:08:43,768 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:08:43,773 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:08:43,774 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:08:43,775 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:08:43,776 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2020-10-06 01:08:43,848 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/653ed3178/2c143437acdb45068cef9fccb4446150/FLAG4be60a480 [2020-10-06 01:08:44,394 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:08:44,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2020-10-06 01:08:44,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/653ed3178/2c143437acdb45068cef9fccb4446150/FLAG4be60a480 [2020-10-06 01:08:44,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/653ed3178/2c143437acdb45068cef9fccb4446150 [2020-10-06 01:08:44,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:08:44,689 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:08:44,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:08:44,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:08:44,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:08:44,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:08:44" (1/1) ... [2020-10-06 01:08:44,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e80d0f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:44, skipping insertion in model container [2020-10-06 01:08:44,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:08:44" (1/1) ... [2020-10-06 01:08:44,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:08:44,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:08:45,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:08:45,214 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:08:45,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:08:45,375 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:08:45,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:45 WrapperNode [2020-10-06 01:08:45,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:08:45,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:08:45,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:08:45,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:08:45,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:45" (1/1) ... [2020-10-06 01:08:45,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:45" (1/1) ... [2020-10-06 01:08:45,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:08:45,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:08:45,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:08:45,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:08:45,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:45" (1/1) ... [2020-10-06 01:08:45,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:45" (1/1) ... [2020-10-06 01:08:45,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:45" (1/1) ... [2020-10-06 01:08:45,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:45" (1/1) ... [2020-10-06 01:08:45,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:45" (1/1) ... [2020-10-06 01:08:45,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:45" (1/1) ... [2020-10-06 01:08:45,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:45" (1/1) ... [2020-10-06 01:08:45,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:08:45,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:08:45,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:08:45,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:08:45,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:45" (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 01:08:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:08:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:08:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:08:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:08:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:08:45,536 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:08:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:08:45,536 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:08:45,537 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 01:08:45,537 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 01:08:45,537 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-06 01:08:45,537 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-06 01:08:45,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:08:45,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:08:45,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:08:45,540 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 01:08:45,940 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:08:45,940 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-06 01:08:45,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:08:45 BoogieIcfgContainer [2020-10-06 01:08:45,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:08:45,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:08:45,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:08:45,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:08:45,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:08:44" (1/3) ... [2020-10-06 01:08:45,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@553b2a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:08:45, skipping insertion in model container [2020-10-06 01:08:45,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:08:45" (2/3) ... [2020-10-06 01:08:45,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@553b2a81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:08:45, skipping insertion in model container [2020-10-06 01:08:45,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:08:45" (3/3) ... [2020-10-06 01:08:45,952 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_pso.opt.i [2020-10-06 01:08:45,963 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:08:45,963 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:08:45,972 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 01:08:45,973 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:08:46,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,004 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,005 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,005 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,005 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,007 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,007 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,007 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,008 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,009 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,009 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,009 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,010 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,010 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,010 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,011 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,011 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,011 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,012 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,016 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,016 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,017 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,017 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,025 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,026 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,028 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,028 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,029 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,034 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,034 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,034 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,035 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:08:46,052 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-06 01:08:46,074 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:08:46,074 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:08:46,075 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:08:46,075 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:08:46,075 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:08:46,075 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:08:46,075 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:08:46,076 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:08:46,093 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 82 transitions, 184 flow [2020-10-06 01:08:46,095 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-10-06 01:08:46,145 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-06 01:08:46,146 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:08:46,151 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-06 01:08:46,154 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 184 flow [2020-10-06 01:08:46,179 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-06 01:08:46,179 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:08:46,180 INFO L80 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-06 01:08:46,182 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1822 [2020-10-06 01:08:46,183 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:08:47,448 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2807 [2020-10-06 01:08:47,449 INFO L214 etLargeBlockEncoding]: Total number of compositions: 63 [2020-10-06 01:08:47,453 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 27 transitions, 74 flow [2020-10-06 01:08:47,508 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 850 states. [2020-10-06 01:08:47,511 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states. [2020-10-06 01:08:47,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:08:47,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:08:47,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:08:47,522 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:08:47,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:08:47,528 INFO L82 PathProgramCache]: Analyzing trace with hash 91051740, now seen corresponding path program 1 times [2020-10-06 01:08:47,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:08:47,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456805543] [2020-10-06 01:08:47,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:08:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:08:47,738 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 01:08:47,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456805543] [2020-10-06 01:08:47,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:08:47,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:08:47,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1729731869] [2020-10-06 01:08:47,746 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:08:47,750 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:08:47,769 INFO L258 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-06 01:08:47,770 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:08:47,774 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:08:47,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-06 01:08:47,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:08:47,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-06 01:08:47,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-06 01:08:47,792 INFO L87 Difference]: Start difference. First operand 850 states. Second operand 2 states. [2020-10-06 01:08:47,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:08:47,835 INFO L93 Difference]: Finished difference Result 850 states and 2994 transitions. [2020-10-06 01:08:47,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-06 01:08:47,842 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-06 01:08:47,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:08:47,869 INFO L225 Difference]: With dead ends: 850 [2020-10-06 01:08:47,869 INFO L226 Difference]: Without dead ends: 706 [2020-10-06 01:08:47,870 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-06 01:08:47,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-06 01:08:47,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-10-06 01:08:47,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-06 01:08:47,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2442 transitions. [2020-10-06 01:08:47,994 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2442 transitions. Word has length 10 [2020-10-06 01:08:47,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:08:47,995 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 2442 transitions. [2020-10-06 01:08:47,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-06 01:08:47,996 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2442 transitions. [2020-10-06 01:08:48,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:08:48,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:08:48,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:08:48,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:08:48,003 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:08:48,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:08:48,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1472387704, now seen corresponding path program 1 times [2020-10-06 01:08:48,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:08:48,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725260722] [2020-10-06 01:08:48,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:08:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:08:48,159 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 01:08:48,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725260722] [2020-10-06 01:08:48,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:08:48,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:08:48,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1219861501] [2020-10-06 01:08:48,161 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:08:48,163 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:08:48,165 INFO L258 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-10-06 01:08:48,165 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:08:48,166 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:08:48,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:08:48,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:08:48,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:08:48,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:08:48,171 INFO L87 Difference]: Start difference. First operand 706 states and 2442 transitions. Second operand 4 states. [2020-10-06 01:08:48,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:08:48,215 INFO L93 Difference]: Finished difference Result 778 states and 2592 transitions. [2020-10-06 01:08:48,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:08:48,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-06 01:08:48,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:08:48,222 INFO L225 Difference]: With dead ends: 778 [2020-10-06 01:08:48,222 INFO L226 Difference]: Without dead ends: 634 [2020-10-06 01:08:48,223 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 01:08:48,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-10-06 01:08:48,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2020-10-06 01:08:48,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-10-06 01:08:48,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 2148 transitions. [2020-10-06 01:08:48,259 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 2148 transitions. Word has length 11 [2020-10-06 01:08:48,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:08:48,260 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 2148 transitions. [2020-10-06 01:08:48,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:08:48,260 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 2148 transitions. [2020-10-06 01:08:48,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 01:08:48,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:08:48,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:08:48,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:08:48,263 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:08:48,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:08:48,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1606888751, now seen corresponding path program 1 times [2020-10-06 01:08:48,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:08:48,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091935721] [2020-10-06 01:08:48,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:08:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:08:48,332 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 01:08:48,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091935721] [2020-10-06 01:08:48,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:08:48,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:08:48,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1339366816] [2020-10-06 01:08:48,334 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:08:48,335 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:08:48,337 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 26 transitions. [2020-10-06 01:08:48,338 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:08:48,399 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:08:48,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:08:48,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:08:48,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:08:48,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:08:48,401 INFO L87 Difference]: Start difference. First operand 634 states and 2148 transitions. Second operand 5 states. [2020-10-06 01:08:48,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:08:48,466 INFO L93 Difference]: Finished difference Result 814 states and 2703 transitions. [2020-10-06 01:08:48,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:08:48,466 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-06 01:08:48,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:08:48,470 INFO L225 Difference]: With dead ends: 814 [2020-10-06 01:08:48,470 INFO L226 Difference]: Without dead ends: 394 [2020-10-06 01:08:48,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:08:48,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-06 01:08:48,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-06 01:08:48,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-06 01:08:48,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1266 transitions. [2020-10-06 01:08:48,509 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1266 transitions. Word has length 12 [2020-10-06 01:08:48,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:08:48,510 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 1266 transitions. [2020-10-06 01:08:48,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:08:48,510 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1266 transitions. [2020-10-06 01:08:48,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 01:08:48,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:08:48,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:08:48,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:08:48,512 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:08:48,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:08:48,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1921114608, now seen corresponding path program 1 times [2020-10-06 01:08:48,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:08:48,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051230252] [2020-10-06 01:08:48,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:08:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:08:48,568 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 01:08:48,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051230252] [2020-10-06 01:08:48,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:08:48,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:08:48,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1860648530] [2020-10-06 01:08:48,570 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:08:48,571 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:08:48,574 INFO L258 McrAutomatonBuilder]: Finished intersection with 16 states and 17 transitions. [2020-10-06 01:08:48,574 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:08:48,585 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:08:48,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:08:48,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:08:48,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:08:48,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:08:48,587 INFO L87 Difference]: Start difference. First operand 394 states and 1266 transitions. Second operand 4 states. [2020-10-06 01:08:48,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:08:48,611 INFO L93 Difference]: Finished difference Result 430 states and 1332 transitions. [2020-10-06 01:08:48,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:08:48,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-06 01:08:48,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:08:48,616 INFO L225 Difference]: With dead ends: 430 [2020-10-06 01:08:48,616 INFO L226 Difference]: Without dead ends: 358 [2020-10-06 01:08:48,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 01:08:48,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-06 01:08:48,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-10-06 01:08:48,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-10-06 01:08:48,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1128 transitions. [2020-10-06 01:08:48,632 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1128 transitions. Word has length 13 [2020-10-06 01:08:48,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:08:48,632 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 1128 transitions. [2020-10-06 01:08:48,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:08:48,633 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1128 transitions. [2020-10-06 01:08:48,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-06 01:08:48,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:08:48,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:08:48,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:08:48,635 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:08:48,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:08:48,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1081404616, now seen corresponding path program 1 times [2020-10-06 01:08:48,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:08:48,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091594704] [2020-10-06 01:08:48,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:08:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:08:48,692 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 01:08:48,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091594704] [2020-10-06 01:08:48,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:08:48,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:08:48,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [553512476] [2020-10-06 01:08:48,694 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:08:48,695 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:08:48,699 INFO L258 McrAutomatonBuilder]: Finished intersection with 24 states and 34 transitions. [2020-10-06 01:08:48,699 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:08:48,749 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:08:48,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:08:48,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:08:48,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:08:48,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:08:48,750 INFO L87 Difference]: Start difference. First operand 358 states and 1128 transitions. Second operand 5 states. [2020-10-06 01:08:48,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:08:48,805 INFO L93 Difference]: Finished difference Result 496 states and 1517 transitions. [2020-10-06 01:08:48,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:08:48,806 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-06 01:08:48,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:08:48,808 INFO L225 Difference]: With dead ends: 496 [2020-10-06 01:08:48,808 INFO L226 Difference]: Without dead ends: 262 [2020-10-06 01:08:48,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:08:48,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-06 01:08:48,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2020-10-06 01:08:48,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-06 01:08:48,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 771 transitions. [2020-10-06 01:08:48,819 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 771 transitions. Word has length 14 [2020-10-06 01:08:48,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:08:48,819 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 771 transitions. [2020-10-06 01:08:48,819 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:08:48,819 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 771 transitions. [2020-10-06 01:08:48,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-06 01:08:48,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:08:48,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:08:48,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:08:48,821 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:08:48,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:08:48,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1257194017, now seen corresponding path program 1 times [2020-10-06 01:08:48,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:08:48,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055254617] [2020-10-06 01:08:48,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:08:48,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:08:48,880 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 01:08:48,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055254617] [2020-10-06 01:08:48,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:08:48,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:08:48,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1740350893] [2020-10-06 01:08:48,881 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:08:48,884 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:08:48,889 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 55 transitions. [2020-10-06 01:08:48,889 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:08:48,910 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:08:48,932 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:08:48,948 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:08:48,964 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:08:48,978 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:08:49,013 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:08:49,025 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:08:49,043 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:08:49,049 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [9912#(not (= 4 ~__unbuffered_cnt~0))] [2020-10-06 01:08:49,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:08:49,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:08:49,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:08:49,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:08:49,051 INFO L87 Difference]: Start difference. First operand 262 states and 771 transitions. Second operand 5 states. [2020-10-06 01:08:49,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:08:49,113 INFO L93 Difference]: Finished difference Result 263 states and 689 transitions. [2020-10-06 01:08:49,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-06 01:08:49,113 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-06 01:08:49,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:08:49,115 INFO L225 Difference]: With dead ends: 263 [2020-10-06 01:08:49,115 INFO L226 Difference]: Without dead ends: 182 [2020-10-06 01:08:49,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:08:49,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-06 01:08:49,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-10-06 01:08:49,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-06 01:08:49,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 443 transitions. [2020-10-06 01:08:49,122 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 443 transitions. Word has length 15 [2020-10-06 01:08:49,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:08:49,122 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 443 transitions. [2020-10-06 01:08:49,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:08:49,123 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 443 transitions. [2020-10-06 01:08:49,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-06 01:08:49,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:08:49,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:08:49,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:08:49,124 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:08:49,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:08:49,124 INFO L82 PathProgramCache]: Analyzing trace with hash -981483084, now seen corresponding path program 1 times [2020-10-06 01:08:49,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:08:49,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392307133] [2020-10-06 01:08:49,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:08:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:08:49,181 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 01:08:49,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392307133] [2020-10-06 01:08:49,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:08:49,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-06 01:08:49,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [68347430] [2020-10-06 01:08:49,183 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:08:49,185 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:08:49,192 INFO L258 McrAutomatonBuilder]: Finished intersection with 45 states and 77 transitions. [2020-10-06 01:08:49,192 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:08:49,234 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:08:49,252 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:08:49,267 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:08:49,351 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [10550#(<= ~__unbuffered_cnt~0 0)] [2020-10-06 01:08:49,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-06 01:08:49,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:08:49,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-06 01:08:49,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:08:49,353 INFO L87 Difference]: Start difference. First operand 182 states and 443 transitions. Second operand 7 states. [2020-10-06 01:08:49,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:08:49,427 INFO L93 Difference]: Finished difference Result 165 states and 373 transitions. [2020-10-06 01:08:49,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-06 01:08:49,430 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-06 01:08:49,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:08:49,431 INFO L225 Difference]: With dead ends: 165 [2020-10-06 01:08:49,431 INFO L226 Difference]: Without dead ends: 132 [2020-10-06 01:08:49,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 6 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:08:49,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-06 01:08:49,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-10-06 01:08:49,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-06 01:08:49,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 295 transitions. [2020-10-06 01:08:49,437 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 295 transitions. Word has length 17 [2020-10-06 01:08:49,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:08:49,438 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 295 transitions. [2020-10-06 01:08:49,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-06 01:08:49,438 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 295 transitions. [2020-10-06 01:08:49,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-06 01:08:49,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:08:49,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:08:49,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 01:08:49,440 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:08:49,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:08:49,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1311703103, now seen corresponding path program 1 times [2020-10-06 01:08:49,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:08:49,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870098080] [2020-10-06 01:08:49,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:08:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:08:49,571 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 01:08:49,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870098080] [2020-10-06 01:08:49,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:08:49,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-06 01:08:49,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1178939341] [2020-10-06 01:08:49,572 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:08:49,574 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:08:49,581 INFO L258 McrAutomatonBuilder]: Finished intersection with 46 states and 75 transitions. [2020-10-06 01:08:49,582 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:08:49,590 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:08:49,677 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [10989#(<= ~__unbuffered_cnt~0 0)] [2020-10-06 01:08:49,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-06 01:08:49,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:08:49,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-06 01:08:49,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:08:49,678 INFO L87 Difference]: Start difference. First operand 132 states and 295 transitions. Second operand 8 states. [2020-10-06 01:08:49,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:08:49,747 INFO L93 Difference]: Finished difference Result 121 states and 271 transitions. [2020-10-06 01:08:49,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-06 01:08:49,748 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-10-06 01:08:49,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:08:49,749 INFO L225 Difference]: With dead ends: 121 [2020-10-06 01:08:49,749 INFO L226 Difference]: Without dead ends: 112 [2020-10-06 01:08:49,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-06 01:08:49,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-06 01:08:49,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-06 01:08:49,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-06 01:08:49,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 255 transitions. [2020-10-06 01:08:49,754 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 255 transitions. Word has length 19 [2020-10-06 01:08:49,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:08:49,754 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 255 transitions. [2020-10-06 01:08:49,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-06 01:08:49,754 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 255 transitions. [2020-10-06 01:08:49,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-06 01:08:49,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:08:49,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:08:49,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-06 01:08:49,755 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:08:49,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:08:49,756 INFO L82 PathProgramCache]: Analyzing trace with hash 188961609, now seen corresponding path program 1 times [2020-10-06 01:08:49,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:08:49,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150538817] [2020-10-06 01:08:49,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:08:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:08:49,804 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 01:08:49,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150538817] [2020-10-06 01:08:49,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:08:49,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 01:08:49,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [193798496] [2020-10-06 01:08:49,805 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:08:49,808 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:08:49,816 INFO L258 McrAutomatonBuilder]: Finished intersection with 48 states and 77 transitions. [2020-10-06 01:08:49,816 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:08:49,882 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:08:49,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:08:49,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:08:49,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:08:49,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:08:49,883 INFO L87 Difference]: Start difference. First operand 112 states and 255 transitions. Second operand 5 states. [2020-10-06 01:08:49,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:08:49,914 INFO L93 Difference]: Finished difference Result 146 states and 329 transitions. [2020-10-06 01:08:49,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:08:49,915 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-06 01:08:49,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:08:49,916 INFO L225 Difference]: With dead ends: 146 [2020-10-06 01:08:49,916 INFO L226 Difference]: Without dead ends: 52 [2020-10-06 01:08:49,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:08:49,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-06 01:08:49,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-06 01:08:49,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-06 01:08:49,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 98 transitions. [2020-10-06 01:08:49,919 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 98 transitions. Word has length 21 [2020-10-06 01:08:49,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:08:49,919 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 98 transitions. [2020-10-06 01:08:49,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:08:49,919 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 98 transitions. [2020-10-06 01:08:49,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-06 01:08:49,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:08:49,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:08:49,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-06 01:08:49,920 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:08:49,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:08:49,921 INFO L82 PathProgramCache]: Analyzing trace with hash -62971415, now seen corresponding path program 2 times [2020-10-06 01:08:49,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:08:49,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758016262] [2020-10-06 01:08:49,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:08:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:08:49,967 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 01:08:49,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758016262] [2020-10-06 01:08:49,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:08:49,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-06 01:08:49,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1880446424] [2020-10-06 01:08:49,968 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:08:49,971 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:08:49,977 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 31 transitions. [2020-10-06 01:08:49,977 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:08:49,988 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:08:49,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:08:49,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:08:49,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:08:49,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:08:49,989 INFO L87 Difference]: Start difference. First operand 52 states and 98 transitions. Second operand 5 states. [2020-10-06 01:08:50,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:08:50,015 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2020-10-06 01:08:50,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:08:50,015 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-06 01:08:50,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:08:50,016 INFO L225 Difference]: With dead ends: 51 [2020-10-06 01:08:50,016 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:08:50,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-06 01:08:50,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:08:50,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:08:50,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:08:50,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:08:50,017 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-06 01:08:50,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:08:50,017 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:08:50,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:08:50,018 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:08:50,018 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:08:50,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-06 01:08:50,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:08:50 BasicIcfg [2020-10-06 01:08:50,022 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:08:50,025 INFO L168 Benchmark]: Toolchain (without parser) took 5335.40 ms. Allocated memory was 147.3 MB in the beginning and 286.8 MB in the end (delta: 139.5 MB). Free memory was 101.0 MB in the beginning and 97.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 143.2 MB. Max. memory is 7.1 GB. [2020-10-06 01:08:50,026 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 147.3 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 01:08:50,027 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.67 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 100.8 MB in the beginning and 161.7 MB in the end (delta: -60.9 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-10-06 01:08:50,028 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.53 ms. Allocated memory is still 204.5 MB. Free memory was 161.7 MB in the beginning and 159.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:08:50,029 INFO L168 Benchmark]: Boogie Preprocessor took 29.18 ms. Allocated memory is still 204.5 MB. Free memory was 159.7 MB in the beginning and 157.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:08:50,029 INFO L168 Benchmark]: RCFGBuilder took 487.16 ms. Allocated memory is still 204.5 MB. Free memory was 157.7 MB in the beginning and 133.4 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-10-06 01:08:50,030 INFO L168 Benchmark]: TraceAbstraction took 4077.59 ms. Allocated memory was 204.5 MB in the beginning and 286.8 MB in the end (delta: 82.3 MB). Free memory was 132.8 MB in the beginning and 97.2 MB in the end (delta: 35.6 MB). Peak memory consumption was 117.9 MB. Max. memory is 7.1 GB. [2020-10-06 01:08:50,035 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 147.3 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 686.67 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 100.8 MB in the beginning and 161.7 MB in the end (delta: -60.9 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.53 ms. Allocated memory is still 204.5 MB. Free memory was 161.7 MB in the beginning and 159.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.18 ms. Allocated memory is still 204.5 MB. Free memory was 159.7 MB in the beginning and 157.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 487.16 ms. Allocated memory is still 204.5 MB. Free memory was 157.7 MB in the beginning and 133.4 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4077.59 ms. Allocated memory was 204.5 MB in the beginning and 286.8 MB in the end (delta: 82.3 MB). Free memory was 132.8 MB in the beginning and 97.2 MB in the end (delta: 35.6 MB). Peak memory consumption was 117.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 93 ProgramPointsBefore, 39 ProgramPointsAfterwards, 82 TransitionsBefore, 27 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 933 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2807 CheckedPairsTotal, 63 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 245 SDtfs, 258 SDslu, 466 SDs, 0 SdLazy, 201 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 112 SyntacticMatches, 12 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=850occurred 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: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 6535 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 correct! Received shutdown request...