/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 19:48:43,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 19:48:43,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 19:48:43,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 19:48:43,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 19:48:43,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 19:48:43,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 19:48:43,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 19:48:43,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 19:48:43,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 19:48:43,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 19:48:43,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 19:48:43,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 19:48:43,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 19:48:43,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 19:48:43,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 19:48:43,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 19:48:43,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 19:48:43,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 19:48:43,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 19:48:43,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 19:48:43,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 19:48:43,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 19:48:43,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 19:48:43,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 19:48:43,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 19:48:43,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 19:48:43,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 19:48:43,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 19:48:43,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 19:48:43,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 19:48:43,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 19:48:43,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 19:48:43,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 19:48:43,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 19:48:43,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 19:48:43,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 19:48:43,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 19:48:43,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 19:48:43,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 19:48:43,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 19:48:43,663 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf [2020-04-18 19:48:43,686 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 19:48:43,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 19:48:43,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 19:48:43,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 19:48:43,689 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 19:48:43,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 19:48:43,689 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 19:48:43,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 19:48:43,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 19:48:43,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 19:48:43,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 19:48:43,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 19:48:43,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 19:48:43,692 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 19:48:43,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 19:48:43,692 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 19:48:43,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 19:48:43,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 19:48:43,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 19:48:43,693 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 19:48:43,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 19:48:43,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 19:48:43,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 19:48:43,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 19:48:43,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 19:48:43,695 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 19:48:43,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 19:48:43,695 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 19:48:43,695 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 19:48:43,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 19:48:43,697 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 19:48:44,010 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 19:48:44,023 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 19:48:44,026 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 19:48:44,027 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 19:48:44,028 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 19:48:44,029 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i [2020-04-18 19:48:44,111 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8a58ac17/9c8bd5aded31470c839a31667de7974d/FLAG0930922b4 [2020-04-18 19:48:44,752 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 19:48:44,754 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_pso.opt.i [2020-04-18 19:48:44,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8a58ac17/9c8bd5aded31470c839a31667de7974d/FLAG0930922b4 [2020-04-18 19:48:44,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8a58ac17/9c8bd5aded31470c839a31667de7974d [2020-04-18 19:48:44,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 19:48:45,002 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 19:48:45,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 19:48:45,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 19:48:45,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 19:48:45,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:48:44" (1/1) ... [2020-04-18 19:48:45,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52695b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:48:45, skipping insertion in model container [2020-04-18 19:48:45,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:48:44" (1/1) ... [2020-04-18 19:48:45,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 19:48:45,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 19:48:45,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:48:45,649 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 19:48:45,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 19:48:45,799 INFO L208 MainTranslator]: Completed translation [2020-04-18 19:48:45,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:48:45 WrapperNode [2020-04-18 19:48:45,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 19:48:45,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 19:48:45,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 19:48:45,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 19:48:45,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:48:45" (1/1) ... [2020-04-18 19:48:45,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:48:45" (1/1) ... [2020-04-18 19:48:45,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 19:48:45,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 19:48:45,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 19:48:45,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 19:48:45,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:48:45" (1/1) ... [2020-04-18 19:48:45,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:48:45" (1/1) ... [2020-04-18 19:48:45,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:48:45" (1/1) ... [2020-04-18 19:48:45,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:48:45" (1/1) ... [2020-04-18 19:48:45,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:48:45" (1/1) ... [2020-04-18 19:48:45,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:48:45" (1/1) ... [2020-04-18 19:48:45,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:48:45" (1/1) ... [2020-04-18 19:48:45,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 19:48:45,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 19:48:45,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 19:48:45,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 19:48:45,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:48:45" (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 [2020-04-18 19:48:45,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 19:48:45,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 19:48:45,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 19:48:45,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 19:48:45,960 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 19:48:45,961 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 19:48:45,961 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 19:48:45,961 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 19:48:45,962 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 19:48:45,962 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 19:48:45,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 19:48:45,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 19:48:45,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 19:48:45,964 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 19:48:46,381 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 19:48:46,382 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 19:48:46,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:48:46 BoogieIcfgContainer [2020-04-18 19:48:46,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 19:48:46,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 19:48:46,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 19:48:46,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 19:48:46,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:48:44" (1/3) ... [2020-04-18 19:48:46,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe45c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:48:46, skipping insertion in model container [2020-04-18 19:48:46,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:48:45" (2/3) ... [2020-04-18 19:48:46,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe45c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:48:46, skipping insertion in model container [2020-04-18 19:48:46,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:48:46" (3/3) ... [2020-04-18 19:48:46,398 INFO L109 eAbstractionObserver]: Analyzing ICFG safe025_pso.opt.i [2020-04-18 19:48:46,408 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 19:48:46,408 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 19:48:46,415 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 19:48:46,417 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 19:48:46,442 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,442 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,443 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,443 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,443 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,444 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,444 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,445 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,445 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,445 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,446 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,446 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,446 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,447 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,447 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,447 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,447 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,448 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,452 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,452 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,453 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,453 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,461 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,461 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,461 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,462 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,474 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,474 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,474 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,475 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 19:48:46,498 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 19:48:46,516 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 19:48:46,516 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 19:48:46,516 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 19:48:46,516 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 19:48:46,517 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 19:48:46,517 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 19:48:46,517 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 19:48:46,517 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 19:48:46,534 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 70 transitions, 155 flow [2020-04-18 19:48:47,112 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8472 states. [2020-04-18 19:48:47,114 INFO L276 IsEmpty]: Start isEmpty. Operand 8472 states. [2020-04-18 19:48:47,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 19:48:47,150 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:48:47,152 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:48:47,153 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:48:47,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:47,160 INFO L82 PathProgramCache]: Analyzing trace with hash -2081382383, now seen corresponding path program 1 times [2020-04-18 19:48:47,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:48:47,169 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [569195921] [2020-04-18 19:48:47,186 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:47,205 INFO L259 McrAutomatonBuilder]: Finished intersection with 37 states and 36 transitions. [2020-04-18 19:48:47,209 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-04-18 19:48:47,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-04-18 19:48:47,210 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:48:47,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:47,210 INFO L82 PathProgramCache]: Analyzing trace with hash -2081382383, now seen corresponding path program 2 times [2020-04-18 19:48:47,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:48:47,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387759025] [2020-04-18 19:48:47,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:48:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:48:47,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:48:47,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387759025] [2020-04-18 19:48:47,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:48:47,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:48:47,754 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:48:47,758 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:47,765 INFO L259 McrAutomatonBuilder]: Finished intersection with 37 states and 36 transitions. [2020-04-18 19:48:47,766 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:48:47,828 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 19:48:47,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:48:47,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:48:47,835 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 6 states. [2020-04-18 19:48:47,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:47,962 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2020-04-18 19:48:47,962 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2020-04-18 19:48:47,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:48:47,964 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [569195921] [2020-04-18 19:48:47,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:48:47,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:48:47,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [569195921] [2020-04-18 19:48:47,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 19:48:47,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:48:47,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:48:47,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-04-18 19:48:47,973 INFO L87 Difference]: Start difference. First operand 8472 states. Second operand 6 states. [2020-04-18 19:48:48,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:48,455 INFO L93 Difference]: Finished difference Result 19772 states and 68248 transitions. [2020-04-18 19:48:48,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 19:48:48,457 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-04-18 19:48:48,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:48:48,530 INFO L225 Difference]: With dead ends: 19772 [2020-04-18 19:48:48,531 INFO L226 Difference]: Without dead ends: 6494 [2020-04-18 19:48:48,532 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:48:48,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6494 states. [2020-04-18 19:48:48,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6494 to 5372. [2020-04-18 19:48:48,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5372 states. [2020-04-18 19:48:49,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5372 states to 5372 states and 18201 transitions. [2020-04-18 19:48:49,002 INFO L78 Accepts]: Start accepts. Automaton has 5372 states and 18201 transitions. Word has length 36 [2020-04-18 19:48:49,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:48:49,004 INFO L479 AbstractCegarLoop]: Abstraction has 5372 states and 18201 transitions. [2020-04-18 19:48:49,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 19:48:49,005 INFO L276 IsEmpty]: Start isEmpty. Operand 5372 states and 18201 transitions. [2020-04-18 19:48:49,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 19:48:49,022 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:48:49,022 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:48:49,022 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:48:49,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:49,023 INFO L82 PathProgramCache]: Analyzing trace with hash -119523886, now seen corresponding path program 1 times [2020-04-18 19:48:49,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:48:49,023 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [953737152] [2020-04-18 19:48:49,025 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:49,028 INFO L259 McrAutomatonBuilder]: Finished intersection with 63 states and 86 transitions. [2020-04-18 19:48:49,029 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2020-04-18 19:48:49,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 19:48:49,030 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:48:49,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:49,030 INFO L82 PathProgramCache]: Analyzing trace with hash -2092436526, now seen corresponding path program 2 times [2020-04-18 19:48:49,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:48:49,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101731749] [2020-04-18 19:48:49,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:48:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:48:49,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:48:49,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101731749] [2020-04-18 19:48:49,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:48:49,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:48:49,300 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:48:49,304 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:49,311 INFO L259 McrAutomatonBuilder]: Finished intersection with 56 states and 72 transitions. [2020-04-18 19:48:49,311 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:48:49,374 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:48:49,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:48:49,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:48:49,376 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 6 states. [2020-04-18 19:48:49,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:49,544 INFO L93 Difference]: Finished difference Result 69 states and 91 transitions. [2020-04-18 19:48:49,545 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 91 transitions. [2020-04-18 19:48:49,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 19:48:49,545 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:48:49,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:49,546 INFO L82 PathProgramCache]: Analyzing trace with hash -119523886, now seen corresponding path program 3 times [2020-04-18 19:48:49,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:48:49,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302398961] [2020-04-18 19:48:49,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:48:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:48:49,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:48:49,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302398961] [2020-04-18 19:48:49,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:48:49,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:48:49,754 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:48:49,758 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:49,767 INFO L259 McrAutomatonBuilder]: Finished intersection with 51 states and 62 transitions. [2020-04-18 19:48:49,768 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:48:49,889 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 6 times. [2020-04-18 19:48:49,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 19:48:49,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-04-18 19:48:49,890 INFO L87 Difference]: Start difference. First operand 69 states and 91 transitions. Second operand 11 states. [2020-04-18 19:48:50,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:50,002 INFO L93 Difference]: Finished difference Result 69 states and 91 transitions. [2020-04-18 19:48:50,002 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 91 transitions. [2020-04-18 19:48:50,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:48:50,003 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [953737152] [2020-04-18 19:48:50,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:48:50,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:48:50,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [953737152] [2020-04-18 19:48:50,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 19:48:50,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:48:50,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 19:48:50,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2020-04-18 19:48:50,006 INFO L87 Difference]: Start difference. First operand 5372 states and 18201 transitions. Second operand 11 states. [2020-04-18 19:48:50,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:50,350 INFO L93 Difference]: Finished difference Result 7156 states and 23836 transitions. [2020-04-18 19:48:50,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-04-18 19:48:50,351 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 38 [2020-04-18 19:48:50,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:48:50,404 INFO L225 Difference]: With dead ends: 7156 [2020-04-18 19:48:50,405 INFO L226 Difference]: Without dead ends: 5744 [2020-04-18 19:48:50,409 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2020-04-18 19:48:50,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5744 states. [2020-04-18 19:48:50,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5744 to 4672. [2020-04-18 19:48:50,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4672 states. [2020-04-18 19:48:50,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4672 states to 4672 states and 15711 transitions. [2020-04-18 19:48:50,629 INFO L78 Accepts]: Start accepts. Automaton has 4672 states and 15711 transitions. Word has length 38 [2020-04-18 19:48:50,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:48:50,630 INFO L479 AbstractCegarLoop]: Abstraction has 4672 states and 15711 transitions. [2020-04-18 19:48:50,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 19:48:50,630 INFO L276 IsEmpty]: Start isEmpty. Operand 4672 states and 15711 transitions. [2020-04-18 19:48:50,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:48:50,641 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:48:50,642 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:48:50,642 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:48:50,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:50,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1321324144, now seen corresponding path program 1 times [2020-04-18 19:48:50,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:48:50,644 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2121615741] [2020-04-18 19:48:50,645 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:50,647 INFO L259 McrAutomatonBuilder]: Finished intersection with 88 states and 135 transitions. [2020-04-18 19:48:50,649 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-04-18 19:48:50,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-04-18 19:48:50,652 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:48:50,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:50,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1321324144, now seen corresponding path program 2 times [2020-04-18 19:48:50,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:48:50,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623067387] [2020-04-18 19:48:50,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:48:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:48:50,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:48:50,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623067387] [2020-04-18 19:48:50,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:48:50,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:48:50,789 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:48:50,792 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:50,799 INFO L259 McrAutomatonBuilder]: Finished intersection with 70 states and 99 transitions. [2020-04-18 19:48:50,799 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:48:50,918 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 6 times. [2020-04-18 19:48:50,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:48:50,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:48:50,918 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 8 states. [2020-04-18 19:48:50,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:50,988 INFO L93 Difference]: Finished difference Result 88 states and 135 transitions. [2020-04-18 19:48:50,988 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 135 transitions. [2020-04-18 19:48:50,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:48:50,989 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2121615741] [2020-04-18 19:48:50,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:48:50,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:48:50,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2121615741] [2020-04-18 19:48:50,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 19:48:50,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:48:50,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:48:50,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 19:48:50,991 INFO L87 Difference]: Start difference. First operand 4672 states and 15711 transitions. Second operand 8 states. [2020-04-18 19:48:51,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:51,277 INFO L93 Difference]: Finished difference Result 6320 states and 20915 transitions. [2020-04-18 19:48:51,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 19:48:51,282 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2020-04-18 19:48:51,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:48:51,327 INFO L225 Difference]: With dead ends: 6320 [2020-04-18 19:48:51,327 INFO L226 Difference]: Without dead ends: 5216 [2020-04-18 19:48:51,328 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2020-04-18 19:48:51,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5216 states. [2020-04-18 19:48:51,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5216 to 4048. [2020-04-18 19:48:51,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4048 states. [2020-04-18 19:48:51,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 13587 transitions. [2020-04-18 19:48:51,910 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 13587 transitions. Word has length 39 [2020-04-18 19:48:51,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:48:51,910 INFO L479 AbstractCegarLoop]: Abstraction has 4048 states and 13587 transitions. [2020-04-18 19:48:51,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 19:48:51,911 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 13587 transitions. [2020-04-18 19:48:51,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:48:51,921 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:48:51,921 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:48:51,921 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:48:51,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:51,922 INFO L82 PathProgramCache]: Analyzing trace with hash -609493549, now seen corresponding path program 1 times [2020-04-18 19:48:51,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:48:51,922 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1965050919] [2020-04-18 19:48:51,924 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:51,927 INFO L259 McrAutomatonBuilder]: Finished intersection with 149 states and 304 transitions. [2020-04-18 19:48:51,928 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2020-04-18 19:48:51,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:48:51,929 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:48:51,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:51,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1712561107, now seen corresponding path program 2 times [2020-04-18 19:48:51,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:48:51,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747671707] [2020-04-18 19:48:51,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:48:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:48:52,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:48:52,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747671707] [2020-04-18 19:48:52,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:48:52,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:48:52,102 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:48:52,105 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:52,115 INFO L259 McrAutomatonBuilder]: Finished intersection with 92 states and 154 transitions. [2020-04-18 19:48:52,115 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:48:52,159 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 4 times. [2020-04-18 19:48:52,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:48:52,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 19:48:52,159 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 6 states. [2020-04-18 19:48:52,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:52,306 INFO L93 Difference]: Finished difference Result 184 states and 347 transitions. [2020-04-18 19:48:52,306 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 347 transitions. [2020-04-18 19:48:52,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:48:52,307 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:48:52,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:52,308 INFO L82 PathProgramCache]: Analyzing trace with hash -609493549, now seen corresponding path program 3 times [2020-04-18 19:48:52,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:48:52,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829527287] [2020-04-18 19:48:52,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:48:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:48:52,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:48:52,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829527287] [2020-04-18 19:48:52,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:48:52,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:48:52,444 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:48:52,448 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:52,457 INFO L259 McrAutomatonBuilder]: Finished intersection with 87 states and 144 transitions. [2020-04-18 19:48:52,458 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:48:52,555 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 6 times. [2020-04-18 19:48:52,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 19:48:52,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-04-18 19:48:52,556 INFO L87 Difference]: Start difference. First operand 184 states and 347 transitions. Second operand 11 states. [2020-04-18 19:48:52,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:52,749 INFO L93 Difference]: Finished difference Result 184 states and 347 transitions. [2020-04-18 19:48:52,750 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 347 transitions. [2020-04-18 19:48:52,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 19:48:52,750 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 19:48:52,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:52,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1994403109, now seen corresponding path program 4 times [2020-04-18 19:48:52,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:48:52,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409607840] [2020-04-18 19:48:52,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:48:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:48:52,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:48:52,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409607840] [2020-04-18 19:48:52,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:48:52,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:48:52,874 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:48:52,879 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:52,896 INFO L259 McrAutomatonBuilder]: Finished intersection with 88 states and 146 transitions. [2020-04-18 19:48:52,896 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:48:52,932 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 17 times. [2020-04-18 19:48:52,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 19:48:52,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2020-04-18 19:48:52,933 INFO L87 Difference]: Start difference. First operand 184 states and 347 transitions. Second operand 11 states. [2020-04-18 19:48:53,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:53,191 INFO L93 Difference]: Finished difference Result 184 states and 347 transitions. [2020-04-18 19:48:53,191 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 347 transitions. [2020-04-18 19:48:53,192 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:48:53,193 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1965050919] [2020-04-18 19:48:53,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:48:53,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:48:53,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1965050919] [2020-04-18 19:48:53,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-04-18 19:48:53,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:48:53,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 19:48:53,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2020-04-18 19:48:53,194 INFO L87 Difference]: Start difference. First operand 4048 states and 13587 transitions. Second operand 12 states. [2020-04-18 19:48:53,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:53,418 INFO L93 Difference]: Finished difference Result 5626 states and 18491 transitions. [2020-04-18 19:48:53,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-04-18 19:48:53,419 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2020-04-18 19:48:53,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:48:53,452 INFO L225 Difference]: With dead ends: 5626 [2020-04-18 19:48:53,452 INFO L226 Difference]: Without dead ends: 4606 [2020-04-18 19:48:53,453 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2020-04-18 19:48:53,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4606 states. [2020-04-18 19:48:53,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4606 to 3593. [2020-04-18 19:48:53,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3593 states. [2020-04-18 19:48:53,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3593 states to 3593 states and 11958 transitions. [2020-04-18 19:48:53,583 INFO L78 Accepts]: Start accepts. Automaton has 3593 states and 11958 transitions. Word has length 40 [2020-04-18 19:48:53,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:48:53,584 INFO L479 AbstractCegarLoop]: Abstraction has 3593 states and 11958 transitions. [2020-04-18 19:48:53,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-04-18 19:48:53,584 INFO L276 IsEmpty]: Start isEmpty. Operand 3593 states and 11958 transitions. [2020-04-18 19:48:53,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:48:53,593 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:48:53,595 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:48:53,595 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:48:53,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:53,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1411336305, now seen corresponding path program 1 times [2020-04-18 19:48:53,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:48:53,603 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1184019955] [2020-04-18 19:48:53,604 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:53,608 INFO L259 McrAutomatonBuilder]: Finished intersection with 192 states and 413 transitions. [2020-04-18 19:48:53,609 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2020-04-18 19:48:53,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:48:53,610 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:48:53,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:53,611 INFO L82 PathProgramCache]: Analyzing trace with hash -561576335, now seen corresponding path program 2 times [2020-04-18 19:48:53,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:48:53,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184244501] [2020-04-18 19:48:53,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:48:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:48:53,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:48:53,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184244501] [2020-04-18 19:48:53,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:48:53,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:48:53,726 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:48:53,729 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:53,741 INFO L259 McrAutomatonBuilder]: Finished intersection with 110 states and 195 transitions. [2020-04-18 19:48:53,742 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:48:53,813 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 10 times. [2020-04-18 19:48:53,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:48:53,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:48:53,814 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 8 states. [2020-04-18 19:48:54,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:54,025 INFO L93 Difference]: Finished difference Result 233 states and 484 transitions. [2020-04-18 19:48:54,025 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 484 transitions. [2020-04-18 19:48:54,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 19:48:54,026 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:48:54,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:54,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1411336305, now seen corresponding path program 3 times [2020-04-18 19:48:54,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:48:54,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769609586] [2020-04-18 19:48:54,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:48:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:48:54,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:48:54,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769609586] [2020-04-18 19:48:54,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:48:54,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 19:48:54,113 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:48:54,116 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:54,128 INFO L259 McrAutomatonBuilder]: Finished intersection with 105 states and 185 transitions. [2020-04-18 19:48:54,128 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:48:54,198 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 11 times. [2020-04-18 19:48:54,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 19:48:54,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2020-04-18 19:48:54,199 INFO L87 Difference]: Start difference. First operand 233 states and 484 transitions. Second operand 6 states. [2020-04-18 19:48:54,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:54,256 INFO L93 Difference]: Finished difference Result 233 states and 484 transitions. [2020-04-18 19:48:54,256 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 484 transitions. [2020-04-18 19:48:54,257 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:48:54,257 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1184019955] [2020-04-18 19:48:54,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:48:54,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 19:48:54,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1184019955] [2020-04-18 19:48:54,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-04-18 19:48:54,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:48:54,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 19:48:54,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2020-04-18 19:48:54,259 INFO L87 Difference]: Start difference. First operand 3593 states and 11958 transitions. Second operand 12 states. [2020-04-18 19:48:54,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:54,866 INFO L93 Difference]: Finished difference Result 5853 states and 19161 transitions. [2020-04-18 19:48:54,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-04-18 19:48:54,867 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2020-04-18 19:48:54,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:48:54,881 INFO L225 Difference]: With dead ends: 5853 [2020-04-18 19:48:54,881 INFO L226 Difference]: Without dead ends: 4117 [2020-04-18 19:48:54,882 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=281, Invalid=1125, Unknown=0, NotChecked=0, Total=1406 [2020-04-18 19:48:54,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4117 states. [2020-04-18 19:48:54,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4117 to 3220. [2020-04-18 19:48:54,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3220 states. [2020-04-18 19:48:54,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 10471 transitions. [2020-04-18 19:48:54,991 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 10471 transitions. Word has length 41 [2020-04-18 19:48:54,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:48:54,991 INFO L479 AbstractCegarLoop]: Abstraction has 3220 states and 10471 transitions. [2020-04-18 19:48:54,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-04-18 19:48:54,992 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 10471 transitions. [2020-04-18 19:48:54,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:48:54,999 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:48:54,999 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:48:55,000 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:48:55,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:55,000 INFO L82 PathProgramCache]: Analyzing trace with hash 503157938, now seen corresponding path program 1 times [2020-04-18 19:48:55,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:48:55,001 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1787981460] [2020-04-18 19:48:55,002 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:55,008 INFO L259 McrAutomatonBuilder]: Finished intersection with 235 states and 522 transitions. [2020-04-18 19:48:55,010 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states. [2020-04-18 19:48:55,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:48:55,012 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:48:55,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:55,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1661203988, now seen corresponding path program 2 times [2020-04-18 19:48:55,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:48:55,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778716654] [2020-04-18 19:48:55,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:48:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:48:55,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:48:55,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778716654] [2020-04-18 19:48:55,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:48:55,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:48:55,116 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:48:55,120 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:55,138 INFO L259 McrAutomatonBuilder]: Finished intersection with 138 states and 265 transitions. [2020-04-18 19:48:55,139 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:48:55,205 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 19:48:55,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:48:55,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:48:55,206 INFO L87 Difference]: Start difference. First operand 235 states. Second operand 8 states. [2020-04-18 19:48:55,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:55,454 INFO L93 Difference]: Finished difference Result 282 states and 604 transitions. [2020-04-18 19:48:55,454 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 604 transitions. [2020-04-18 19:48:55,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 19:48:55,455 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:48:55,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:55,455 INFO L82 PathProgramCache]: Analyzing trace with hash -660850668, now seen corresponding path program 3 times [2020-04-18 19:48:55,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:48:55,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847848873] [2020-04-18 19:48:55,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:48:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:48:55,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:48:55,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847848873] [2020-04-18 19:48:55,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:48:55,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:48:55,588 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:48:55,591 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:55,606 INFO L259 McrAutomatonBuilder]: Finished intersection with 126 states and 234 transitions. [2020-04-18 19:48:55,607 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:48:55,725 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 23 times. [2020-04-18 19:48:55,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 19:48:55,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2020-04-18 19:48:55,726 INFO L87 Difference]: Start difference. First operand 282 states and 604 transitions. Second operand 9 states. [2020-04-18 19:48:55,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:55,902 INFO L93 Difference]: Finished difference Result 282 states and 604 transitions. [2020-04-18 19:48:55,902 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 604 transitions. [2020-04-18 19:48:55,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:48:55,904 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1787981460] [2020-04-18 19:48:55,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:48:55,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:48:55,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1787981460] [2020-04-18 19:48:55,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-04-18 19:48:55,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:48:55,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-04-18 19:48:55,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=655, Unknown=0, NotChecked=0, Total=812 [2020-04-18 19:48:55,905 INFO L87 Difference]: Start difference. First operand 3220 states and 10471 transitions. Second operand 15 states. [2020-04-18 19:48:56,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:56,645 INFO L93 Difference]: Finished difference Result 3157 states and 9984 transitions. [2020-04-18 19:48:56,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-04-18 19:48:56,646 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2020-04-18 19:48:56,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:48:56,651 INFO L225 Difference]: With dead ends: 3157 [2020-04-18 19:48:56,651 INFO L226 Difference]: Without dead ends: 1255 [2020-04-18 19:48:56,652 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=412, Invalid=1844, Unknown=0, NotChecked=0, Total=2256 [2020-04-18 19:48:56,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-04-18 19:48:56,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1073. [2020-04-18 19:48:56,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1073 states. [2020-04-18 19:48:56,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 3091 transitions. [2020-04-18 19:48:56,678 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 3091 transitions. Word has length 42 [2020-04-18 19:48:56,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:48:56,678 INFO L479 AbstractCegarLoop]: Abstraction has 1073 states and 3091 transitions. [2020-04-18 19:48:56,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-04-18 19:48:56,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 3091 transitions. [2020-04-18 19:48:56,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 19:48:56,681 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 19:48:56,681 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 19:48:56,681 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 19:48:56,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:56,682 INFO L82 PathProgramCache]: Analyzing trace with hash -199682829, now seen corresponding path program 1 times [2020-04-18 19:48:56,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 19:48:56,682 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [363262721] [2020-04-18 19:48:56,684 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:56,721 INFO L259 McrAutomatonBuilder]: Finished intersection with 1761 states and 5712 transitions. [2020-04-18 19:48:56,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states. [2020-04-18 19:48:56,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 19:48:56,740 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 19:48:56,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:56,741 INFO L82 PathProgramCache]: Analyzing trace with hash 208483833, now seen corresponding path program 2 times [2020-04-18 19:48:56,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:48:56,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336731101] [2020-04-18 19:48:56,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:48:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:48:56,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:48:56,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336731101] [2020-04-18 19:48:56,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:48:56,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:48:56,848 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:48:56,852 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:56,896 INFO L259 McrAutomatonBuilder]: Finished intersection with 252 states and 544 transitions. [2020-04-18 19:48:56,897 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:48:56,968 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 14 times. [2020-04-18 19:48:56,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:48:56,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 19:48:56,969 INFO L87 Difference]: Start difference. First operand 1761 states. Second operand 8 states. [2020-04-18 19:48:57,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:57,264 INFO L93 Difference]: Finished difference Result 2874 states and 9142 transitions. [2020-04-18 19:48:57,264 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 9142 transitions. [2020-04-18 19:48:57,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 19:48:57,271 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 19:48:57,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:57,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1208749951, now seen corresponding path program 3 times [2020-04-18 19:48:57,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:48:57,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242392114] [2020-04-18 19:48:57,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:48:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:48:57,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:48:57,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242392114] [2020-04-18 19:48:57,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:48:57,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:48:57,348 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:48:57,352 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:57,395 INFO L259 McrAutomatonBuilder]: Finished intersection with 249 states and 532 transitions. [2020-04-18 19:48:57,395 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:48:57,517 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 19 times. [2020-04-18 19:48:57,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-04-18 19:48:57,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2020-04-18 19:48:57,518 INFO L87 Difference]: Start difference. First operand 2874 states and 9142 transitions. Second operand 12 states. [2020-04-18 19:48:57,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:57,713 INFO L93 Difference]: Finished difference Result 4114 states and 12586 transitions. [2020-04-18 19:48:57,713 INFO L276 IsEmpty]: Start isEmpty. Operand 4114 states and 12586 transitions. [2020-04-18 19:48:57,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 19:48:57,769 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 19:48:57,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:57,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1288191075, now seen corresponding path program 4 times [2020-04-18 19:48:57,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:48:57,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31741345] [2020-04-18 19:48:57,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:48:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:48:57,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:48:57,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31741345] [2020-04-18 19:48:57,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:48:57,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:48:57,854 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:48:57,858 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:57,892 INFO L259 McrAutomatonBuilder]: Finished intersection with 242 states and 518 transitions. [2020-04-18 19:48:57,892 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:48:58,024 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 16 times. [2020-04-18 19:48:58,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:48:58,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=979, Unknown=0, NotChecked=0, Total=1190 [2020-04-18 19:48:58,025 INFO L87 Difference]: Start difference. First operand 4114 states and 12586 transitions. Second operand 8 states. [2020-04-18 19:48:58,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:58,394 INFO L93 Difference]: Finished difference Result 4178 states and 12646 transitions. [2020-04-18 19:48:58,395 INFO L276 IsEmpty]: Start isEmpty. Operand 4178 states and 12646 transitions. [2020-04-18 19:48:58,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 19:48:58,403 INFO L105 Mcr]: ---- MCR iteration 3 ---- [2020-04-18 19:48:58,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:58,403 INFO L82 PathProgramCache]: Analyzing trace with hash -398670689, now seen corresponding path program 5 times [2020-04-18 19:48:58,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:48:58,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727876716] [2020-04-18 19:48:58,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:48:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:48:58,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:48:58,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727876716] [2020-04-18 19:48:58,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:48:58,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 19:48:58,503 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:48:58,507 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:58,549 INFO L259 McrAutomatonBuilder]: Finished intersection with 240 states and 522 transitions. [2020-04-18 19:48:58,549 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:48:58,609 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 19 times. [2020-04-18 19:48:58,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 19:48:58,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=1738, Unknown=0, NotChecked=0, Total=2070 [2020-04-18 19:48:58,610 INFO L87 Difference]: Start difference. First operand 4178 states and 12646 transitions. Second operand 8 states. [2020-04-18 19:48:59,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:59,050 INFO L93 Difference]: Finished difference Result 6758 states and 19776 transitions. [2020-04-18 19:48:59,050 INFO L276 IsEmpty]: Start isEmpty. Operand 6758 states and 19776 transitions. [2020-04-18 19:48:59,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 19:48:59,060 INFO L105 Mcr]: ---- MCR iteration 4 ---- [2020-04-18 19:48:59,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 19:48:59,060 INFO L82 PathProgramCache]: Analyzing trace with hash 353378553, now seen corresponding path program 6 times [2020-04-18 19:48:59,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 19:48:59,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516485820] [2020-04-18 19:48:59,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 19:48:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 19:48:59,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 19:48:59,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516485820] [2020-04-18 19:48:59,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 19:48:59,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 19:48:59,145 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 19:48:59,149 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 19:48:59,203 INFO L259 McrAutomatonBuilder]: Finished intersection with 278 states and 654 transitions. [2020-04-18 19:48:59,203 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 19:48:59,242 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 16 times. [2020-04-18 19:48:59,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 19:48:59,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=459, Invalid=2733, Unknown=0, NotChecked=0, Total=3192 [2020-04-18 19:48:59,244 INFO L87 Difference]: Start difference. First operand 6758 states and 19776 transitions. Second operand 7 states. [2020-04-18 19:48:59,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:48:59,484 INFO L93 Difference]: Finished difference Result 8344 states and 23912 transitions. [2020-04-18 19:48:59,484 INFO L276 IsEmpty]: Start isEmpty. Operand 8344 states and 23912 transitions. [2020-04-18 19:48:59,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:48:59,498 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [363262721] [2020-04-18 19:48:59,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 19:48:59,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-04-18 19:48:59,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [363262721] [2020-04-18 19:48:59,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-04-18 19:48:59,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 19:48:59,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-04-18 19:48:59,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=510, Invalid=3150, Unknown=0, NotChecked=0, Total=3660 [2020-04-18 19:48:59,501 INFO L87 Difference]: Start difference. First operand 1073 states and 3091 transitions. Second operand 24 states. [2020-04-18 19:49:02,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 19:49:02,510 INFO L93 Difference]: Finished difference Result 3687 states and 10613 transitions. [2020-04-18 19:49:02,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2020-04-18 19:49:02,510 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 48 [2020-04-18 19:49:02,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 19:49:02,513 INFO L225 Difference]: With dead ends: 3687 [2020-04-18 19:49:02,513 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 19:49:02,519 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6869 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2337, Invalid=16845, Unknown=0, NotChecked=0, Total=19182 [2020-04-18 19:49:02,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 19:49:02,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 19:49:02,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 19:49:02,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 19:49:02,520 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2020-04-18 19:49:02,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 19:49:02,520 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 19:49:02,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-04-18 19:49:02,520 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 19:49:02,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 19:49:02,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:49:02 BasicIcfg [2020-04-18 19:49:02,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 19:49:02,536 INFO L168 Benchmark]: Toolchain (without parser) took 17548.48 ms. Allocated memory was 136.8 MB in the beginning and 680.5 MB in the end (delta: 543.7 MB). Free memory was 99.8 MB in the beginning and 549.7 MB in the end (delta: -449.9 MB). Peak memory consumption was 93.8 MB. Max. memory is 7.1 GB. [2020-04-18 19:49:02,539 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 19:49:02,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.96 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 97.9 MB in the beginning and 157.9 MB in the end (delta: -60.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-04-18 19:49:02,542 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.69 ms. Allocated memory is still 200.8 MB. Free memory was 157.9 MB in the beginning and 155.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 19:49:02,543 INFO L168 Benchmark]: Boogie Preprocessor took 39.98 ms. Allocated memory is still 200.8 MB. Free memory was 155.9 MB in the beginning and 153.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 19:49:02,543 INFO L168 Benchmark]: RCFGBuilder took 494.36 ms. Allocated memory is still 200.8 MB. Free memory was 153.8 MB in the beginning and 132.2 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-04-18 19:49:02,551 INFO L168 Benchmark]: TraceAbstraction took 16137.13 ms. Allocated memory was 200.8 MB in the beginning and 680.5 MB in the end (delta: 479.7 MB). Free memory was 131.5 MB in the beginning and 549.7 MB in the end (delta: -418.2 MB). Peak memory consumption was 61.5 MB. Max. memory is 7.1 GB. [2020-04-18 19:49:02,554 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 796.96 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 97.9 MB in the beginning and 157.9 MB in the end (delta: -60.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.69 ms. Allocated memory is still 200.8 MB. Free memory was 157.9 MB in the beginning and 155.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.98 ms. Allocated memory is still 200.8 MB. Free memory was 155.9 MB in the beginning and 153.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 494.36 ms. Allocated memory is still 200.8 MB. Free memory was 153.8 MB in the beginning and 132.2 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16137.13 ms. Allocated memory was 200.8 MB in the beginning and 680.5 MB in the end (delta: 479.7 MB). Free memory was 131.5 MB in the beginning and 549.7 MB in the end (delta: -418.2 MB). Peak memory consumption was 61.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.0s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 875 SDtfs, 3493 SDslu, 5632 SDs, 0 SdLazy, 1458 SolverSat, 403 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1213 GetRequests, 933 SyntacticMatches, 0 SemanticMatches, 280 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8043 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8472occurred 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: 1.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 5454 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...