/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/concurrent/pthreads/distributed_search2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 20:21:43,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 20:21:43,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 20:21:43,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 20:21:43,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 20:21:43,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 20:21:43,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 20:21:43,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 20:21:43,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 20:21:43,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 20:21:43,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 20:21:43,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 20:21:43,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 20:21:43,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 20:21:43,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 20:21:43,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 20:21:43,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 20:21:43,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 20:21:43,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 20:21:43,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 20:21:43,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 20:21:43,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 20:21:43,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 20:21:43,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 20:21:43,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 20:21:43,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 20:21:43,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 20:21:43,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 20:21:43,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 20:21:43,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 20:21:43,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 20:21:43,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 20:21:43,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 20:21:43,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 20:21:43,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 20:21:43,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 20:21:43,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 20:21:43,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 20:21:43,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 20:21:43,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 20:21:43,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 20:21:43,476 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 20:21:43,490 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 20:21:43,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 20:21:43,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 20:21:43,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 20:21:43,492 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 20:21:43,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 20:21:43,492 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 20:21:43,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 20:21:43,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 20:21:43,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 20:21:43,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 20:21:43,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 20:21:43,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 20:21:43,494 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 20:21:43,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 20:21:43,495 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 20:21:43,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 20:21:43,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 20:21:43,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 20:21:43,496 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 20:21:43,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 20:21:43,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:21:43,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 20:21:43,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 20:21:43,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 20:21:43,497 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 20:21:43,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 20:21:43,498 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 20:21:43,499 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 20:21:43,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 20:21:43,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 20:21:43,778 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 20:21:43,795 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 20:21:43,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 20:21:43,800 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 20:21:43,800 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 20:21:43,801 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/distributed_search2.c [2020-04-18 20:21:43,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fdd3feb5/3c99f2c511c24f21a2c964ae82697607/FLAG4a409c226 [2020-04-18 20:21:44,397 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 20:21:44,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/distributed_search2.c [2020-04-18 20:21:44,398 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-04-18 20:21:44,399 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-04-18 20:21:44,447 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fdd3feb5/3c99f2c511c24f21a2c964ae82697607/FLAG4a409c226 [2020-04-18 20:21:44,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fdd3feb5/3c99f2c511c24f21a2c964ae82697607 [2020-04-18 20:21:44,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 20:21:44,722 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 20:21:44,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 20:21:44,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 20:21:44,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 20:21:44,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:21:44" (1/1) ... [2020-04-18 20:21:44,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42020d42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:44, skipping insertion in model container [2020-04-18 20:21:44,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:21:44" (1/1) ... [2020-04-18 20:21:44,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 20:21:44,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 20:21:45,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:21:45,088 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 20:21:45,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:21:45,125 INFO L208 MainTranslator]: Completed translation [2020-04-18 20:21:45,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:45 WrapperNode [2020-04-18 20:21:45,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 20:21:45,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 20:21:45,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 20:21:45,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 20:21:45,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:45" (1/1) ... [2020-04-18 20:21:45,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:45" (1/1) ... [2020-04-18 20:21:45,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 20:21:45,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 20:21:45,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 20:21:45,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 20:21:45,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:45" (1/1) ... [2020-04-18 20:21:45,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:45" (1/1) ... [2020-04-18 20:21:45,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:45" (1/1) ... [2020-04-18 20:21:45,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:45" (1/1) ... [2020-04-18 20:21:45,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:45" (1/1) ... [2020-04-18 20:21:45,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:45" (1/1) ... [2020-04-18 20:21:45,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:45" (1/1) ... [2020-04-18 20:21:45,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 20:21:45,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 20:21:45,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 20:21:45,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 20:21:45,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:45" (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 20:21:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 20:21:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure search_worker [2020-04-18 20:21:45,250 INFO L138 BoogieDeclarations]: Found implementation of procedure search_worker [2020-04-18 20:21:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 20:21:45,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 20:21:45,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 20:21:45,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 20:21:45,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 20:21:45,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 20:21:45,252 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 20:21:45,714 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 20:21:45,714 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-04-18 20:21:45,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:21:45 BoogieIcfgContainer [2020-04-18 20:21:45,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 20:21:45,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 20:21:45,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 20:21:45,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 20:21:45,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:21:44" (1/3) ... [2020-04-18 20:21:45,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f6c22b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:21:45, skipping insertion in model container [2020-04-18 20:21:45,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:45" (2/3) ... [2020-04-18 20:21:45,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f6c22b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:21:45, skipping insertion in model container [2020-04-18 20:21:45,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:21:45" (3/3) ... [2020-04-18 20:21:45,727 INFO L109 eAbstractionObserver]: Analyzing ICFG distributed_search2.c [2020-04-18 20:21:45,736 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 20:21:45,736 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 20:21:45,743 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 20:21:45,743 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 20:21:45,772 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,773 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,773 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,773 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,774 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,774 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,774 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,774 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,775 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,775 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,775 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,775 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,776 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,776 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,776 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,776 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,777 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,777 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,777 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,777 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,778 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,778 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,778 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,778 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,779 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,779 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,779 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,779 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,780 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,780 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,780 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,780 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,781 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,781 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,781 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,781 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,782 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,782 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,782 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,782 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,783 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,783 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#in~params.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,783 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,784 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,784 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,784 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,784 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,784 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,785 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,785 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,785 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,785 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,786 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,786 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,786 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,786 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,787 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,787 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,787 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,787 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,788 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,788 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,788 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,788 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,788 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,789 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,789 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,789 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,789 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,790 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,790 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,790 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,791 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,791 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,791 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,791 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,792 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,792 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,792 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,792 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,796 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,796 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,797 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,797 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,797 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,797 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,798 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,798 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,798 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,799 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,799 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,799 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,799 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork0_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,806 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,806 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,807 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,807 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,807 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,807 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,808 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,808 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,808 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~params.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,808 WARN L315 ript$VariableManager]: TermVariabe |search_workerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,809 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~bounds~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,809 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~lower~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,809 WARN L315 ript$VariableManager]: TermVariabe search_workerThread1of1ForFork1_~upper~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:21:45,832 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-04-18 20:21:45,853 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:21:45,854 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:21:45,854 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:21:45,854 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:21:45,854 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:21:45,855 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:21:45,855 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:21:45,855 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:21:45,872 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 135 places, 138 transitions, 298 flow [2020-04-18 20:21:45,961 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1789 states. [2020-04-18 20:21:45,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1789 states. [2020-04-18 20:21:46,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-04-18 20:21:46,000 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:21:46,002 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, 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 20:21:46,002 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-18 20:21:46,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:21:46,009 INFO L82 PathProgramCache]: Analyzing trace with hash 574600381, now seen corresponding path program 1 times [2020-04-18 20:21:46,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:21:46,018 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [604455693] [2020-04-18 20:21:46,035 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:21:46,125 INFO L259 McrAutomatonBuilder]: Finished intersection with 676 states and 1551 transitions. [2020-04-18 20:21:46,141 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states. [2020-04-18 20:21:46,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-04-18 20:21:46,148 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:21:46,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:21:46,149 INFO L82 PathProgramCache]: Analyzing trace with hash 574600381, now seen corresponding path program 2 times [2020-04-18 20:21:46,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:21:46,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116140265] [2020-04-18 20:21:46,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:21:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:21:46,462 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 20:21:46,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116140265] [2020-04-18 20:21:46,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:21:46,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 20:21:46,466 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:21:46,496 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:21:46,804 INFO L259 McrAutomatonBuilder]: Finished intersection with 436 states and 927 transitions. [2020-04-18 20:21:46,804 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:21:46,980 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:21:47,093 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 10 times. [2020-04-18 20:21:47,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:21:47,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:21:47,100 INFO L87 Difference]: Start difference. First operand 676 states. Second operand 5 states. [2020-04-18 20:21:47,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:21:47,216 INFO L93 Difference]: Finished difference Result 676 states and 1551 transitions. [2020-04-18 20:21:47,216 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 1551 transitions. [2020-04-18 20:21:47,228 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:21:47,229 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [604455693] [2020-04-18 20:21:47,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:21:47,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 20:21:47,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [604455693] [2020-04-18 20:21:47,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 20:21:47,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:21:47,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:21:47,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:21:47,237 INFO L87 Difference]: Start difference. First operand 1789 states. Second operand 5 states. [2020-04-18 20:21:47,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:21:47,464 INFO L93 Difference]: Finished difference Result 1789 states and 4620 transitions. [2020-04-18 20:21:47,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 20:21:47,466 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 87 [2020-04-18 20:21:47,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:21:47,501 INFO L225 Difference]: With dead ends: 1789 [2020-04-18 20:21:47,502 INFO L226 Difference]: Without dead ends: 1777 [2020-04-18 20:21:47,504 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:21:47,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2020-04-18 20:21:47,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1777. [2020-04-18 20:21:47,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1777 states. [2020-04-18 20:21:47,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 4607 transitions. [2020-04-18 20:21:47,659 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 4607 transitions. Word has length 87 [2020-04-18 20:21:47,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:21:47,659 INFO L479 AbstractCegarLoop]: Abstraction has 1777 states and 4607 transitions. [2020-04-18 20:21:47,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 20:21:47,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 4607 transitions. [2020-04-18 20:21:47,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-04-18 20:21:47,665 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:21:47,666 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, 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 20:21:47,666 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-18 20:21:47,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:21:47,667 INFO L82 PathProgramCache]: Analyzing trace with hash 678611261, now seen corresponding path program 1 times [2020-04-18 20:21:47,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:21:47,667 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2117456621] [2020-04-18 20:21:47,672 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:21:47,714 INFO L259 McrAutomatonBuilder]: Finished intersection with 676 states and 1551 transitions. [2020-04-18 20:21:47,718 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states. [2020-04-18 20:21:47,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-04-18 20:21:47,721 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:21:47,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:21:47,721 INFO L82 PathProgramCache]: Analyzing trace with hash 678611261, now seen corresponding path program 2 times [2020-04-18 20:21:47,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:21:47,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792439996] [2020-04-18 20:21:47,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:21:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:21:47,920 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 20:21:47,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792439996] [2020-04-18 20:21:47,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:21:47,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-18 20:21:47,921 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:21:47,998 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:21:48,553 INFO L259 McrAutomatonBuilder]: Finished intersection with 436 states and 927 transitions. [2020-04-18 20:21:48,553 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:21:48,577 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:21:48,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:21:48,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-04-18 20:21:48,578 INFO L87 Difference]: Start difference. First operand 676 states. Second operand 5 states. [2020-04-18 20:21:48,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:21:48,638 INFO L93 Difference]: Finished difference Result 676 states and 1551 transitions. [2020-04-18 20:21:48,638 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 1551 transitions. [2020-04-18 20:21:48,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:21:48,641 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [2117456621] [2020-04-18 20:21:48,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:21:48,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-04-18 20:21:48,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [2117456621] [2020-04-18 20:21:48,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-18 20:21:48,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:21:48,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-18 20:21:48,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:21:48,643 INFO L87 Difference]: Start difference. First operand 1777 states and 4607 transitions. Second operand 5 states. [2020-04-18 20:21:48,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:21:48,689 INFO L93 Difference]: Finished difference Result 1782 states and 4611 transitions. [2020-04-18 20:21:48,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 20:21:48,690 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 87 [2020-04-18 20:21:48,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:21:48,702 INFO L225 Difference]: With dead ends: 1782 [2020-04-18 20:21:48,702 INFO L226 Difference]: Without dead ends: 1768 [2020-04-18 20:21:48,704 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-18 20:21:48,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2020-04-18 20:21:48,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1768. [2020-04-18 20:21:48,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1768 states. [2020-04-18 20:21:48,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1768 states to 1768 states and 4597 transitions. [2020-04-18 20:21:48,758 INFO L78 Accepts]: Start accepts. Automaton has 1768 states and 4597 transitions. Word has length 87 [2020-04-18 20:21:48,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:21:48,759 INFO L479 AbstractCegarLoop]: Abstraction has 1768 states and 4597 transitions. [2020-04-18 20:21:48,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-18 20:21:48,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1768 states and 4597 transitions. [2020-04-18 20:21:48,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-04-18 20:21:48,765 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:21:48,765 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, 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 20:21:48,765 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-18 20:21:48,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:21:48,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1467463773, now seen corresponding path program 1 times [2020-04-18 20:21:48,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:21:48,766 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1054672406] [2020-04-18 20:21:48,771 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:21:48,858 INFO L259 McrAutomatonBuilder]: Finished intersection with 676 states and 1551 transitions. [2020-04-18 20:21:48,862 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states. [2020-04-18 20:21:48,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-04-18 20:21:48,865 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:21:48,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:21:48,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1467463773, now seen corresponding path program 2 times [2020-04-18 20:21:48,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:21:48,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446090522] [2020-04-18 20:21:48,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:21:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:21:49,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:21:49,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446090522] [2020-04-18 20:21:49,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:21:49,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 20:21:49,072 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:21:49,093 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:21:49,347 INFO L259 McrAutomatonBuilder]: Finished intersection with 436 states and 927 transitions. [2020-04-18 20:21:49,348 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:21:49,356 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:21:49,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 20:21:49,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 20:21:49,357 INFO L87 Difference]: Start difference. First operand 676 states. Second operand 3 states. [2020-04-18 20:21:49,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:21:49,374 INFO L93 Difference]: Finished difference Result 676 states and 1551 transitions. [2020-04-18 20:21:49,374 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 1551 transitions. [2020-04-18 20:21:49,376 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:21:49,377 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1054672406] [2020-04-18 20:21:49,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:21:49,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 20:21:49,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1054672406] [2020-04-18 20:21:49,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 20:21:49,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:21:49,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 20:21:49,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 20:21:49,379 INFO L87 Difference]: Start difference. First operand 1768 states and 4597 transitions. Second operand 3 states. [2020-04-18 20:21:49,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:21:49,427 INFO L93 Difference]: Finished difference Result 3048 states and 8014 transitions. [2020-04-18 20:21:49,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 20:21:49,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2020-04-18 20:21:49,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:21:49,447 INFO L225 Difference]: With dead ends: 3048 [2020-04-18 20:21:49,447 INFO L226 Difference]: Without dead ends: 3001 [2020-04-18 20:21:49,448 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 20:21:49,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3001 states. [2020-04-18 20:21:49,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3001 to 2737. [2020-04-18 20:21:49,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2737 states. [2020-04-18 20:21:49,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2737 states to 2737 states and 7203 transitions. [2020-04-18 20:21:49,542 INFO L78 Accepts]: Start accepts. Automaton has 2737 states and 7203 transitions. Word has length 87 [2020-04-18 20:21:49,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:21:49,544 INFO L479 AbstractCegarLoop]: Abstraction has 2737 states and 7203 transitions. [2020-04-18 20:21:49,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 20:21:49,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2737 states and 7203 transitions. [2020-04-18 20:21:49,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-04-18 20:21:49,552 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:21:49,552 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, 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 20:21:49,552 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2020-04-18 20:21:49,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:21:49,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1543410744, now seen corresponding path program 1 times [2020-04-18 20:21:49,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:21:49,554 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1171983898] [2020-04-18 20:21:49,560 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:21:49,635 INFO L259 McrAutomatonBuilder]: Finished intersection with 1054 states and 2514 transitions. [2020-04-18 20:21:49,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states. [2020-04-18 20:21:49,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-04-18 20:21:49,647 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:21:49,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:21:49,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1543410744, now seen corresponding path program 2 times [2020-04-18 20:21:49,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:21:49,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38546792] [2020-04-18 20:21:49,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:21:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:21:50,712 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-04-18 20:21:50,845 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2020-04-18 20:21:50,995 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2020-04-18 20:21:51,303 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2020-04-18 20:21:51,548 WARN L192 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 48 [2020-04-18 20:21:51,903 WARN L192 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2020-04-18 20:21:52,285 WARN L192 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2020-04-18 20:21:52,629 WARN L192 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2020-04-18 20:21:52,968 WARN L192 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2020-04-18 20:21:53,342 WARN L192 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2020-04-18 20:21:53,682 WARN L192 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2020-04-18 20:21:54,001 WARN L192 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2020-04-18 20:21:54,326 WARN L192 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2020-04-18 20:21:54,644 WARN L192 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2020-04-18 20:21:54,998 WARN L192 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2020-04-18 20:21:55,212 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 52 [2020-04-18 20:21:55,504 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 54 [2020-04-18 20:21:55,738 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 54 [2020-04-18 20:21:55,974 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 54 [2020-04-18 20:21:56,194 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 49 [2020-04-18 20:21:56,398 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 49 [2020-04-18 20:21:57,520 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 41 [2020-04-18 20:21:58,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:21:58,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38546792] [2020-04-18 20:21:58,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125003128] [2020-04-18 20:21:58,702 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 20:21:58,798 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-04-18 20:21:58,799 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-04-18 20:21:58,802 INFO L264 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 35 conjunts are in the unsatisfiable core [2020-04-18 20:21:58,811 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 20:21:59,704 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2020-04-18 20:21:59,704 INFO L539 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-04-18 20:21:59,707 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 20:21:59,707 INFO L539 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-04-18 20:21:59,708 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:23, output treesize:3 [2020-04-18 20:21:59,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:21:59,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 20:21:59,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 14] total 54 [2020-04-18 20:21:59,731 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:21:59,751 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:22:00,045 INFO L259 McrAutomatonBuilder]: Finished intersection with 556 states and 1202 transitions. [2020-04-18 20:22:00,045 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:22:01,607 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-04-18 20:22:15,028 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2020-04-18 20:22:17,879 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:22:17,880 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2020-04-18 20:22:17,880 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:22:17,881 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2020-04-18 20:22:17,883 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2020-04-18 20:22:17,884 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:22:17,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2020-04-18 20:22:17,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2020-04-18 20:22:17,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:22:17,889 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2020-04-18 20:22:17,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2020-04-18 20:22:17,892 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:22:17,893 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2020-04-18 20:22:17,895 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2020-04-18 20:22:21,210 WARN L192 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 213 DAG size of output: 109 [2020-04-18 20:22:24,641 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-04-18 20:22:26,328 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2020-04-18 20:22:26,329 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:22:26,331 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2020-04-18 20:22:26,332 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2020-04-18 20:22:26,333 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:22:26,334 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2020-04-18 20:22:26,335 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2020-04-18 20:22:26,336 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 20:22:26,337 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2020-04-18 20:22:26,338 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2020-04-18 20:22:29,035 WARN L192 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 155 DAG size of output: 100 [2020-04-18 20:22:38,276 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 233 times. [2020-04-18 20:22:38,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 165 interpolants. [2020-04-18 20:22:38,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=602, Invalid=26458, Unknown=0, NotChecked=0, Total=27060 [2020-04-18 20:22:38,285 INFO L87 Difference]: Start difference. First operand 1054 states. Second operand 165 states. [2020-04-18 20:22:42,699 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2020-04-18 20:22:43,343 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2020-04-18 20:22:44,122 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2020-04-18 20:22:44,852 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2020-04-18 20:22:45,715 WARN L192 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2020-04-18 20:22:47,122 WARN L192 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 75 [2020-04-18 20:22:48,220 WARN L192 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2020-04-18 20:22:49,319 WARN L192 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 83 [2020-04-18 20:22:50,449 WARN L192 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 96 [2020-04-18 20:22:51,628 WARN L192 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 89 [2020-04-18 20:22:53,138 WARN L192 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 90 [2020-04-18 20:22:54,348 WARN L192 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 99 [2020-04-18 20:22:55,776 WARN L192 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 105 [2020-04-18 20:22:57,356 WARN L192 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 96 [2020-04-18 20:22:58,937 WARN L192 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 99 [2020-04-18 20:23:00,141 WARN L192 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 102 [2020-04-18 20:23:01,549 WARN L192 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 108 [2020-04-18 20:23:03,359 WARN L192 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 112 [2020-04-18 20:23:05,241 WARN L192 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 106 [2020-04-18 20:23:06,918 WARN L192 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 99 [2020-04-18 20:23:08,386 WARN L192 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 111 [2020-04-18 20:23:10,334 WARN L192 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 115 [2020-04-18 20:23:12,676 WARN L192 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 122 [2020-04-18 20:23:15,214 WARN L192 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 106 [2020-04-18 20:23:16,729 WARN L192 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 107 [2020-04-18 20:23:18,252 WARN L192 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 118 [2020-04-18 20:23:20,542 WARN L192 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 125 [2020-04-18 20:23:22,904 WARN L192 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 113 [2020-04-18 20:23:24,412 WARN L192 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 114 [2020-04-18 20:23:26,274 WARN L192 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 114 [2020-04-18 20:23:28,191 WARN L192 SmtUtils]: Spent 941.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 128 [2020-04-18 20:23:29,448 WARN L192 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 97 [2020-04-18 20:23:31,428 WARN L192 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 106 [2020-04-18 20:23:33,106 WARN L192 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 121 [2020-04-18 20:23:34,619 WARN L192 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 121 [2020-04-18 20:23:36,918 WARN L192 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 124 [2020-04-18 20:23:38,626 WARN L192 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 100 [2020-04-18 20:23:42,417 WARN L192 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 214 DAG size of output: 138 [2020-04-18 20:23:43,979 WARN L192 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 128 [2020-04-18 20:23:45,095 WARN L192 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 114 [2020-04-18 20:23:47,557 WARN L192 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 131 [2020-04-18 20:23:49,177 WARN L192 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 96 [2020-04-18 20:23:53,319 WARN L192 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 281 DAG size of output: 169 [2020-04-18 20:23:55,485 WARN L192 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 228 DAG size of output: 138 [2020-04-18 20:23:56,644 WARN L192 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 121 [2020-04-18 20:23:59,993 WARN L192 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 275 DAG size of output: 166 [2020-04-18 20:24:02,020 WARN L192 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 103 [2020-04-18 20:24:05,704 WARN L192 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 110 [2020-04-18 20:24:07,397 WARN L192 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 131 [2020-04-18 20:24:10,728 WARN L192 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 278 DAG size of output: 163 [2020-04-18 20:24:15,322 WARN L192 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 356 DAG size of output: 201 [2020-04-18 20:24:17,431 WARN L192 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 107 [2020-04-18 20:24:20,856 WARN L192 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 114 [2020-04-18 20:24:21,938 WARN L192 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 103 [2020-04-18 20:24:25,386 WARN L192 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 300 DAG size of output: 136 [2020-04-18 20:24:29,841 WARN L192 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 363 DAG size of output: 198 [2020-04-18 20:24:32,277 WARN L192 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 111 [2020-04-18 20:24:34,516 WARN L192 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 107 [2020-04-18 20:24:36,281 WARN L192 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 118 [2020-04-18 20:24:38,972 WARN L192 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 109 [2020-04-18 20:24:43,374 WARN L192 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 390 DAG size of output: 178 [2020-04-18 20:24:46,342 WARN L192 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 134 [2020-04-18 20:24:49,512 WARN L192 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 111 [2020-04-18 20:24:52,124 WARN L192 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 246 DAG size of output: 115 [2020-04-18 20:24:54,519 WARN L192 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 234 DAG size of output: 149 [2020-04-18 20:24:57,997 WARN L192 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 314 DAG size of output: 151 [2020-04-18 20:25:01,295 WARN L192 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 148 [2020-04-18 20:25:06,629 WARN L192 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 268 DAG size of output: 119 [2020-04-18 20:25:08,482 WARN L192 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 134 [2020-04-18 20:25:12,488 WARN L192 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 355 DAG size of output: 157 [2020-04-18 20:25:15,232 WARN L192 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 255 DAG size of output: 168 [2020-04-18 20:25:18,622 WARN L192 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 166 [2020-04-18 20:25:24,867 WARN L192 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 294 DAG size of output: 145 [2020-04-18 20:25:28,691 WARN L192 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 396 DAG size of output: 161 [2020-04-18 20:25:31,128 WARN L192 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 221 DAG size of output: 148 [2020-04-18 20:25:34,722 WARN L192 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 278 DAG size of output: 191 [2020-04-18 20:25:37,097 WARN L192 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 152 [2020-04-18 20:25:39,313 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2020-04-18 20:25:44,801 WARN L192 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 312 DAG size of output: 160 [2020-04-18 20:25:49,614 WARN L192 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 427 DAG size of output: 191 [2020-04-18 20:25:52,804 WARN L192 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 242 DAG size of output: 166 [2020-04-18 20:25:55,119 WARN L192 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 257 DAG size of output: 172 [2020-04-18 20:25:58,062 WARN L192 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 172 [2020-04-18 20:26:00,651 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2020-04-18 20:26:07,757 WARN L192 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 450 DAG size of output: 210 [2020-04-18 20:26:11,831 WARN L192 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 335 DAG size of output: 183 [2020-04-18 20:26:14,497 WARN L192 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 226 DAG size of output: 152 Received shutdown request... [2020-04-18 20:26:15,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 20:26:15,312 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-18 20:26:15,317 WARN L228 ceAbstractionStarter]: Timeout [2020-04-18 20:26:15,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:26:15 BasicIcfg [2020-04-18 20:26:15,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 20:26:15,319 INFO L168 Benchmark]: Toolchain (without parser) took 270615.53 ms. Allocated memory was 144.7 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 100.3 MB in the beginning and 746.1 MB in the end (delta: -645.8 MB). Peak memory consumption was 487.2 MB. Max. memory is 7.1 GB. [2020-04-18 20:26:15,320 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-18 20:26:15,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.66 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 98.2 MB in the beginning and 177.3 MB in the end (delta: -79.1 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2020-04-18 20:26:15,321 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.86 ms. Allocated memory is still 201.3 MB. Free memory was 177.3 MB in the beginning and 175.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 20:26:15,322 INFO L168 Benchmark]: Boogie Preprocessor took 27.31 ms. Allocated memory is still 201.3 MB. Free memory was 175.3 MB in the beginning and 174.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 20:26:15,322 INFO L168 Benchmark]: RCFGBuilder took 525.54 ms. Allocated memory is still 201.3 MB. Free memory was 174.0 MB in the beginning and 148.2 MB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-04-18 20:26:15,323 INFO L168 Benchmark]: TraceAbstraction took 269597.34 ms. Allocated memory was 201.3 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 147.5 MB in the beginning and 746.1 MB in the end (delta: -598.6 MB). Peak memory consumption was 477.8 MB. Max. memory is 7.1 GB. [2020-04-18 20:26:15,326 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 401.66 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 98.2 MB in the beginning and 177.3 MB in the end (delta: -79.1 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.86 ms. Allocated memory is still 201.3 MB. Free memory was 177.3 MB in the beginning and 175.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.31 ms. Allocated memory is still 201.3 MB. Free memory was 175.3 MB in the beginning and 174.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 525.54 ms. Allocated memory is still 201.3 MB. Free memory was 174.0 MB in the beginning and 148.2 MB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 269597.34 ms. Allocated memory was 201.3 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 147.5 MB in the beginning and 746.1 MB in the end (delta: -598.6 MB). Peak memory consumption was 477.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 67). Cancelled while BasicCegarLoop was analyzing trace of length 97 with TraceHistMax 1,while PredicateComparison was comparing new predicate (quantifier-free) to 256 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 269.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 359 SDtfs, 44 SDslu, 735 SDs, 0 SdLazy, 111 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 274 GetRequests, 263 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2737occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 264 StatesRemovedByMinimization, 1 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 could not prove your program: Timeout Completed graceful shutdown